Closet Humidity

[Markass]

I'm having problems...my lights turn off at 7am, and the temp drops some. Along with that, the humidity is going up to 60-70%...I'm starting to smell a stale moldy odor coming from the buds...I've looked into de humidifiers and have yet to find one that's reasonable for my budget at the moment. Is it my only option to lower humidity? Three girls 3 weeks into flower...I don't want to lose them now...or even later due to molding...:( Can someone give me a little bit more info about mold maybe? Perhaps how much tolerance my flowers may have for it, how nasty of a taste it's going to add, and also if once it starts it can be stopped or if it's worthless to go on...thanks everyone..

[Tomthehippie]

Hey man! flowering plants grow best in a relative humidity range from 55 to 60 percent! S

[xxxhazexxx]

when your lights go out do you leave your fans on?have you got some kind of heater?

[Tomthehippie]

Hey Man! Flowering plants grow best in a relative humidity range of from 55 to 60 percent! If you want to lower your humidity even more so you can either install a larger out let fan or install as you said a dehumidifier! Your best bet is eBay! I have a small dehumidifier in the shed bought from B&Q cost pennyâ??s! :)

[Tomthehippie]

humm... not quite sure what i did there! lol.

[Solosan]

keep a fan running...

[Markass]

I have an oscillating fan that I started leaving on in hopes of air-drying any excess moisture that may be on my flowers...I have my pc fan on the end of my duct still plugged in maybe to remove some of the air as well...tom, you say you got one for cheap, what kind is it?

no heater...

[Weedhound]

Hey mark are you there? If so check e-mail.....need to talk to you. Do you have yahoo messenger?

[Markass]

msn, but no yahoo.

[UMrocksmysocks]

Hey man! flowering plants grow best in a relative humidity range from 55 to 60 percent! S

dont listen to that advise, your buds will very susseptible to bud rot in the 55%+ humidity you are experiencing. you want it at 40% during flowering, no higher than 45% .. i suggest upping you exhaust fan cfm, but that will make more noise. not to mention, another $200+ for a bigger fan. if you can afford it, look around on ebay maybe if your short on cash, for a dehumidifier

[Tomthehippie]

dont listen to that advise, your buds will very susseptible to bud rot in the 55%+ humidity you are experiencing. you want it at 40% during flowering, no higher than 45% .. i suggest upping you exhaust fan cfm, but that will make more noise. not to mention, another $200+ for a bigger fan. if you can afford it, look around on ebay maybe if your short on cash, for a dehumidifier

sorry man i took that advice from the latest cannabis bible, argue with Jorg Cervantes. :)

[Tomthehippie]

yea man! il find the link for you in abit! tad busy!

[Weedhound]

I looked it up in the same book Tom and yes, that's what he said....however on the same page they talk about flowering rh of 40-60% which is quite a difference to me. Which one is it really Jorge?

Mark we talked about the dehumidifiers so the only other thing i can think of would be a fungicide. There must be a nursery somewhere in your town (which is more BFE than where I live.....and that's saying something) You should grab some spray and start using it asap....my hydro guy recommends Serenade but if you can't get that one get ANY one. You need to hold off the budrot, mold etc till you can get your humidity under control.

[Tomthehippie]

on reflection yea your right weedhound! we need jorge lol.

[RonnieRay]

Hey man,
You should be able to lower your humidity to an acceptable range for growing just by using a small oscilating fan in the flower area and also having an outgoing air fan / vent. You should not need a dehumidifyer in most cases.

[madeline]

It's very important not only for your plants but also for your home that mold does not get started. If you're smelling it now you could already be in trouble so I'd be looking closely under the carpet or anywhere else mold likes to hide and grow and if you find any you ought to be looking for a different closet while the current one gets gutted and thoroughly cleaned out...ASAP!

Put some plastic sheets on the floor or whatever else you have around to keep moisture from going any further than the surface and mop up any and all residue. Molds and mildue are nothing to mess with and have ruined many homes once allowed to take hold.

[Weedhound]

Madeline you go girl!!!! :thumbsup:

[Markass]

...and madeline...not really a way for moisture to get beneath the emergency blanket..smell is primarily coming from the buds..and I'm incapable of moving to a different closet, this is about as far as it goes...if I keep having problems that I cannot solve there's about nothing I can do.

weedhound, store here had nothing as far as fungicide..I'm stuck up the creek on this one..

[Markass]

It's hard to determine if my buds have mold on them because of the trichomes, but it's the only place the smell's coming from and without a fungicide and what I know about mold, I don't think this one's gonna make it...:(:( I can't believe this..

I really cannot believe it...

[Cornelius]

fungicide quick. and next time get better ventilation

[Markass]

fungicide quick. and next time get better ventilation

I live in a very small town in the middle of nowhere. Fungicide isn't much possibility for me...:( you're looking at adequate ventilation, bro...5 inch pc fan inducting air into cool tube and duct, at the other end is a 6" in-line 250CFM duct fan.

thank god for marijuana...if I didn't have anything to smoke I would be curled up in a corner I'm sure sobbing over this...all I can do is sit wish wait and hope...the perspective for me is...I've gotten to the middle of the bridge, and half of the bridge is now missing for me...I really hope that in the next 7 weeks I can control humidity enough to make the conditions unfavorable for fungal growth..that's about my only option at the moment, and thanks to someone watching out for me, we've got a couple mini gun safe/closet dehumidifiers ordered that will be here in a couple days. 80-85 degrees with about 43% humidity right now...I think the light hours with circulation + light and heat is all that's saving me from full blown infestation.

[Cornelius]

i can't tell: are you exchanging the air inside your space? or are you just running air from outside, straight through the tube, and back out again?

[Markass]

i can't tell: are you exchanging the air inside your space? or are you just running air from outside, straight through the tube, and back out again?

as for air inside my space, fan circulates it and sucks a lot of it through duct I'm sure, closet door's cracked open as well..duct goes up into attic.

Just talked to a friend about 50 miles away, I'm gonna give him gas money and he's willing to pick up something for me, and bring it my way. big thanks for that..may save me. next thing is I just hope that walmart carries it..that's his biggest option, I told him to look for a nursery or other places that may have plant related items. hopefully it works out, I'll let everyone know how that works out..

[Weedhound]

Walmart will have something for sure I would think. I looked on the net Mark but could not find a fungicide that I could get to you quickly.

Fuck....somewhere around here I have a book I think.....home remedies for plants.....let me look around. Christ you live in the land of nod dude....even I can get a fungicide where I live....

[Weedhound]

Ok I found two things that may help you if you're friend cannot get ahold of anything.....obviously go with a bought spray made for this if you can but I need to know if you have one of two things in your house..

baking soda
or chammomile tea

[Markass]

we've got baking soda..check your e-mail..

[Tomthehippie]

man, i think u need to stuff the pc fan and find something slightly more substantial.. if u cant afford a proper inline fan buy a small fan heater that can run cool or remover the element then attach it to the end of your vent. Air should always be pulled and never pushed as its ineffective and inefficient.

Kmart.com (http://www.kmart.com/shc/s/search_10151_10104_keyword?storeId=10151&catalogId=10104&vName=&keyword=fan+heater&gobutton.x=0&gobutton.y=0&gobutton=find)

eBay - Extractor fan, Gardening Plants, Lamps, Lighting, Ceiling Fans items on eBay.com (http://search.ebay.com/search/search.dll?from=R40&satitle=Extractor+fan+&category0=)

eBay - inline fan, Gardening Plants, Industrial Supply, MRO items on eBay.com (http://search.ebay.com/search/search.dll?sofocus=bs&sbrftog=1&from=R10&satitle=inline+fan&sacat=-1%26catref%3DC6&sargn=-1%26saslc%3D2&sadis=200&fpos=ZIP%2FPostal&ftrt=1&ftrv=1&saprclo=&saprchi=&fsop=1%26fsoo%3D1&coaction=compare&copagenum=1&coentrypage=search)

Few fans i found...

[stinkyattic]

I'll try to respond to as much of the stuff in this thread as possible.
FIRST. Jorge Cervantes needs to fire his editor, and fast. His Indoor Grow Bible is so full of typos, misprints, etc that it gives me anxiety just trying to read the stupid thing and I HATE it. Is is an okay guide for nOObs, yeah, it's fine but take it with a grain of salt... Argue with Jorge... lol sure any day!
I keep my flower room humidity below 40%... I shoot for the 30s.
The concept of relative humidity is one that you can use to your advantage... with increased temps, the air can hold more moisture. If you find yourself in a situation in which your humidity is high and your night temps are significantly lower than your day temps, you can end up with actual DEWFALL after lights out!
There are options for dealing with this.
FIRST your ventilation has to be very good... you need an active exhaust to carry warm moist air away from your grow area. That by itself is likely to solve your problems... plus the problem that isn't quite so obvious, which is that with insufficient ventilation your yield is going to suffer, mold aside.
Next, consider adding a space heater on a timer to go on about a half hour after the lights go off when the room starts to lose heat. This will eliminate any dewfall problems you are having.
Oh yeah.. computer fans... no computer fans!! they are just not sufficient for most growing applications. Get down to walmart and pick up a few of those little metal high velocity fans for $5 each... they move some serious air for their size.
Dehumidifier not in the budget... well in the words of someone around here... go cheap, grow cheap. This isn;t a cheap hobby. Skimping on equipment will not save you anything. REALLY.

[Tomthehippie]

I agree with you all the way stinky! And your so right a bout the grow bible! iv noticed little things in the book but just thought it was me reading it oddly.

^ Best answer your going to get!

[Weedhound]

Tom that wasn't because you were stoned was it? :)

[Markass]

ventilation is more than sufficient, stinky..read a bit more and you'll find that the 5 inch pc fan acts as an inductor to my 6" inline 250 cfm fan on the other end of that duct. oscillating fan is on 3/3 power level now, blowing lots of wind, pc fan sucking air atm with lights off..all I can do.

[Tomthehippie]

Man, i think your doing all you can do with out super-sizing to a beef cake mother of a fan!

[LOC NAR on probation]

In a 4x6x8 room I used a whole house dehumidifier just to keep it under 40%. Ventilation during light cycle. It could barely keep it down. The rewards were way better than moldy buds or small buds from RH too high. I live where RH is always high.70 to 80% normal. Out side growing sucks here and so does weed grown out side. AC essential. Like said go cheap grow cheap. 3 hit crippler, couch lock,trip your ass for 3 to 4 hours. It's worth it.

[xcrispi]

In a 4x6x8 room I used a whole house dehumidifier just to keep it under 40%. Ventilation during light cycle. It could barely keep it down. The rewards were way better than moldy buds or small buds from RH too high. I live where RH is always high.70 to 80% normal. Out side growing sucks here and so does weed grown out side. AC essential. Like said go cheap grow cheap. 3 hit crippler, couch lock,trip your ass for 3 to 4 hours. It's worth it.

You do or did , hydro though Loc Nar . lots more humidity to begin w/ . Hes only got 3 plants in soil . The entire house is at 60% too , not just his grow space which makes it even tougher to control atleast at a reasonable cost .
Peace
Crispi :jointsmile:

[Weedhound]

X-C is right and here is the thing.....realistically this guy practically lives in a cave as far as his ability to get what he needs for his grow. From what he has said the town pretty much consists of grandma's house and a gas station. And i'm not too sure about trusting grandma either.....already heard some weird shit about her and I don't even live there.

[Markass]

X-C is right and here is the thing.....realistically this guy practically lives in a cave as far as his ability to get what he needs for his grow. From what he has said the town pretty much consists of grandma's house and a gas station. And i'm not too sure about trusting grandma either.....already heard some weird shit about her and I don't even live there.

lol @ grandma, weedhound..

household remedy seems to be my best option right now, fan circulating a lot more with pc fan on 24 hours seems to be helping lower humidity a bit.

1tbsp baking soda
1tbsp vegetable oil
1tbsp dish soap

mixed in a gallon of water, misted my buds pretty good with it, they seem to be now lacking their musty odor as much, we'll see what happens in the net 24-48 hours.

[TheGreenFog]

Hey, Markass...man that really stinks (LOL) about that mold/humidity problem you've got. Sounds like you said you got it down to about 45% you said last right? Well, hope you can keep it there...!

With everyone speaking about the optimal RH for flowering, I'll put in my few cents...I did watch Jorge's video (a clippit of it, at least) and he mentioned 50% as an "ideal RH," and people here have said between 40%-55%, but I also read somewhere else that the LOWEST POSSIBLE HUMIDITY is ideal. The reason for this is that it causes the plant to produce MORE TRICHOMES! The plant is not only mold resistant at this RH, but it is also so dry 'outside' that the plant must create more resin glands to "protect the seed inside the pod." Regardless of whether or not there is an actual seed in the pod or not, when the calyxes start to be fertilized OR when they are experiencing a false pregnancy, as in sinsemillia plants, the plant responds to the environment with respect to its new growing seed. Therefore, IMO...the dryer...the better.

20% - 40% RH sounds delicious to me! :eat:


OH, and Madeline! You run around here spouting off all that GREAT information, but we don't have an avatar to relate you to! You should be recognizable because you always have great info! How about one of these two?? Maybe you can have Skink "joint" one of them? That would be slick! ;) Just tryna help. :D

[attachment=o132185] [attachment=o132186]


The Fog :rastasmoke:

[Weedhound]

omg.....that doll brings back memories....

[Tomthehippie]

omg.....that doll brings back memories....

Looks like my ex. lol

[stinkyattic]

Frog- did you see I made a thread in the lounge last week with Madeline pics for Maddy? lol

[TheGreenFog]

No, Stinky...I sure didn't see that thread! LOL. What a coincidence. I've been thinking of doing that for a week or so. HA. Well, I hope she picks one soon! :(


The Fog :rastasmoke:

[Weedhound]

Hey Mark, hope you're going to show a new pic tonight. Here''s my little russian thing 15 days in......short, squat, all indica-looking. No chance for lst here. OMG I see a new smiley.....going to put it here....:beatdeadhorse:

[Markass]

Hey Mark, hope you're going to show a new pic tonight. Here''s my little russian thing 15 days in......short, squat, all indica-looking. No chance for lst here. OMG I see a new smiley.....going to put it here....:beatdeadhorse:

looking great weedhound..bet that's gonna be a heavy smoke :) here are some newer pics..don't know if you've seen them yet...from last night

[Weedhound]

Starting to crystal up there.....looking good. See some swelling in the calyxes too. :thumbsup: I wondered if your avatar was from your own stuff.

[Dutch Pimp]

...what was the question again?...Oh yea...hum..ditty....:rasta:

...HPS LOWERS HUMIDITY...and I prefer 24/0...so when you go into 12/12...no mold...:thumbsup:...plus A/C pumped into grow room/closet is best... in my opinion...(which don't mean shit)....No Way Jose'...:smokin:

[Markass]

Starting to crystal up there.....looking good. See some swelling in the calyxes too. :thumbsup: I wondered if your avatar was from your own stuff.

yeah, looking beautiful :D last night we got up to around 85 in there, didn't cool off in there until early this morning...ended up seeing a couple little male nanners come out, no worries for me though, I'd rather have a couple seeds over high humidity and mold. When temps are higher humidity is much lower. Not the best, but almost my option at this point. pluck em..I've now got a fan near my window sucking some cool air in for me

[4x5]

You could take the plant out of the closet at the beginning of its next light cycle, clean and disinfect the room with bleach-water then put the plant back in to finish its day in the "sunshine"; that would greatly reduce the chance of mold.

[Weedhound]

Mark....what the latest on your RH issue? Update........:stoned:

[Markass]

Mark....what the latest on your RH issue? Update........:stoned:

Received petite dehumidifier today and started running it after I got out of school. I noticed it bringing the humidity down, so we'll see what it does from morning until evening tomorrow during lights out for the humidity..buds are continuing, I added some koolbloom to their water last night, no bad response so far, so I think they'll like it.

here's a pic I took a few minutes ago, calyxes are swelling and bursting with even more of them, I hope me and these girls make it through the next 6 weeks or so, it should be wonderful. about 3/4 hairs on all plants are orange now. I believe that shows that they're starting to mature more? the fact that I'm not seeing bud rot or bad physical signs gives me hope that I may have my problem contained for the time being. thanks so much, weedhound.

[Markass]

here's a couple more.

[Weedhound]

Sweeeeeeett!!! Yeah my camera bit it so was looking at the poloaroids you and X-C have ....found it on Amazon.com but only in PINK!! Sorry, no can deal with pink.

They do look good there Mark, even in the last few days some fair changes despite the issues. Good job! ;)

the countdown begins......to this..... :jointsmile:

[Markass]

Sweeeeeeett!!! Yeah my camera bit it so was looking at the poloaroids you and X-C have ....found it on Amazon.com but only in PINK!! Sorry, no can deal with pink.

They do look good there Mark, even in the last few days some fair changes despite the issues. Good job! ;)

the countdown begins......to this..... :jointsmile:

yeah, I plan on getting down to the plant store to see if they have fungicide...baking soda and water isn't doing enough for me. If I can't get it here in town I'll probably order off the internet. Friend's coming to town this weekend, but I may be able to have something by then. I've got dehumidifier now, I might as well take another step..it may save me.

weedhound...Amazon.com: Polaroid 5 Mp I533: Electronics (http://www.amazon.com/Polaroid-i533-Digital-Camera-Optical/dp/B000MRJC3W/ref=pd_bbs_sr_1/103-8735054-2629412?ie=UTF8&s=electronics&qid=1177475241&sr=8-1)

eh?

[Weedhound]

Mark, you sly devil you. I did see those but upon checking out the sellers I was not impressed and one or two of them were used but condition "acceptable" so I ran like the wind. Plus X-C was cruising around bragging about the price he got his for so I wanted to see if I could find something along the same price (but not used.)It's a keeping up with the joneses thing. :D

If you have a CHOICE...I know your options are limited....may I suggest serenade for a spray. Recommended by you know who but I agree with you that a regular spray instead of homemade is better so get what you can. . :thumbsup:

Very glad to hear your humidity issue is under control. This won't make any difference to you right now but having gone through the mill on this grow has given you a jam-packed education on growing....all in a few months. Your next grow will be a breeze. ;)

[Markass]

Mark, you sly devil you. I did see those but upon checking out the sellers I was not impressed and one or two of them were used but condition "acceptable" so I ran like the wind. Plus X-C was cruising around bragging about the price he got his for so I wanted to see if I could find something along the same price (but not used.)It's a keeping up with the joneses thing. :D

If you have a CHOICE...I know your options are limited....may I suggest serenade for a spray. Recommended by you know who but I agree with you that a regular spray instead of homemade is better so get what you can. . :thumbsup:

Very glad to hear your humidity issue is under control. This won't make any difference to you right now but having gone through the mill on this grow has given you a jam-packed education on growing....all in a few months. Your next grow will be a breeze. ;)

for 7.99 I got something called 'hi-yield maneb garden fungicide' I mixed up a gallon of spray and doused my plants down with it. I'll apply again in a few days I'm sure depending on how the problem's going. it may come down that I order some of that serenade off of the net or something, but this was a quick option that I figured would be of maybe a bit more benefit than my water and baking soda. got it from 'grandma's' btw, weedhound...lol..this was about the best thing that was there.

[Weedhound]

Ahhh, I figured Grandma might have something in her pantry, lol. We have a 'general store" like that as well and to find stuff first you have to brush all the dust off. Small towns....sigh.

Mark please let me know how well that dehumidifier works. It is the same one I ordered for myself. ;)

[Markass]

that's what I had to do to read the top to see how to open it...lol..

depending on the size of your room, you may want either a bigger one or maybe another one of these...it's keeping it 55-60% during the day..not climbing to 75-80 like it had done a few days so it's doing something. However, if you have a bigger space you may want more dehumidifieing power..it's absorbing all the water it can out of the air though, it works. I think it'll take a trial run at your house to see how effective it is given your conditions. The outside humidity here has been nuts..air conditioner isn't ran here until the end of may or so though, so the humidity in the house is that of outside...that's playing against me a lot there too..

[Markass]

here are pics weedhound..buds are still appearing to be in good condition, only leaves being affected..mainly big fan leaves..like this one. hopefully my fungicide if anything will at least give me protection on the buds..

[Weedhound]

Thanks for the photos Mark, they were excellent. I would love to have them as some sort of sticky on fungus....so many photos show you after the whole plant is gone so you have no idea how something looks early on.

God that bud looks so lovely.

You're doing all you can with the humidity. Are you using those little mini things too? My issue seems more related to the little space itself. The temp in the space was 65 degrees this am so not a big shift in temp but the humidity went nuts. The part of the room that wasn't closed off was fine but inside with the lights off......just not ok.

I want to do some more studying on this fungus thing......maybe Scarlet or X-C knows but I believe you want to cut and remove all those damaged lower leaves. I'm not positive though, so don't do it based on what I say. I think the idea is to remove as many of the fungal spores as possible from the enviroment. I will go read.....

[Markass]

Weehound, I was using the mini's yesterday...Says that they normally can take around 60 days to become full and need recharged, I filled them both up in around 24 hours, they definitely soaked up water, but I don't think it contributed much to my humidity level decreasing..I let him go ahead and take them to his house to put them in the cellar.

I can tell you that with warmer temps the humidity lowers. Lights on @ 80 degree room temp and 40% humidity. If you have a way to maybe keep it a bit warmer at night time you may even be able to lower your humidity more..

fucking camera fell from the top of my desk and broke my bong earlier...:( what great luck I'm having...

[Weedhound]

Not your bong!!!! Those things are sacred!!! :(

Mark I studied several books etc and they all strongly recommend cutting off any diseased sections and removing them carefully from the grow room. Also as someone said...perhaps spraying down your walls at some point when your lights are on and plants removed for a few hours with the fungal spray.
Jorge's book also said (in a seperate section) that fungal spores do not grow well in a humidity of 40-50% so if you can even get down to 49 it would be good. I know you are doing the best you can. ;)

I can't remember if I told you to click on the link in my sig to check out some good info on fungus....could be that I was just stoned and thinking about it instead.

[Markass]

Not your bong!!!! Those things are sacred!!! :(

Mark I studied several books etc and they all strongly recommend cutting off any diseased sections and removing them carefully from the grow room. Also as someone said...perhaps spraying down your walls at some point when your lights are on and plants removed for a few hours with the fungal spray.
Jorge's book also said (in a seperate section) that fungal spores do not grow well in a humidity of 40-50% so if you can even get down to 49 it would be good. I know you are doing the best you can. ;)

I can't remember if I told you to click on the link in my sig to check out some good info on fungus....could be that I was just stoned and thinking about it instead.

between fungicide, lights on humidity being lower, and me doing everything I can is probably what's keeping my flowers going...plants won't be coming out...no way jose..I've got several branches tied to different buckets and stuff now, and even if I did untie to remove them carefully I don't think I'd be able to get them back in there the way they are now..yeah, I've been to that page several times for various reasons..I've been pulling away leaves that are dying off due to mold on them, but it would be hard for me to bring myself to just cutting off something...

right now we're at 40%, lights go off at 7am, and it'll get up around 60..maybe it'll stop being so damn high outside soon..

[Weedhound]

Lol, I know exactly what you mean. In my job what I can not do is create an incision into the skin (cut the skin w/scalpel) That absolutely goes against every grain I have. It doesn't bother me at all to watch the doctor do it (during surgery) but I just CANT do it....when I think of all the time I spend making wounds better. (....even when its for the best...!)

And the lst thing is the same I came up with in my second grow. I had shit tied everywhere to everything. I really hated it although I did get some NICE buds after all was said and done.

[Markass]

Lol, I know exactly what you mean. In my job what I can not do is create an incision into the skin (cut the skin w/scalpel) That absolutely goes against every grain I have. It doesn't bother me at all to watch the doctor do it (during surgery) but I just CANT do it....when I think of all the time I spend making wounds better. (....even when its for the best...!)

And the lst thing is the same I came up with in my second grow. I had shit tied everywhere to everything. I really hated it although I did get some NICE buds after all was said and done.

yeah, lst was definitely a must for me this time, I really just hope that my buds keep progressing as they are without taking damage really..those trichs are gonna be crazy once these girls are done..

[latewood]

you don't want your humidity above 40-45% 60% will definitely promote powdery mildew, and mold...possibly budrot
Jorge teaches on the side of caution, and also they don't want tyou to give up...LOL, because you cannot get % to 40.

when they say 40-60...they mean 60% is as high as you can go without stopping production. I would never run my flower room at 55-60 % NEVER!!!

Go to ebay and spend 80-90 bucks on a used or refurbished model. I did, and my humidity is a constant low 40's. get a 30 pint, with an external connection...so you can plumb drainage. If you cannot afford this then you cannot afford to grow. I am not being mean...I am saying in the end yield and quality will really take a beating, if you do not get your humidity under control. You will end up losing time and $$$ well above the cost of a de-humidifier. Peace

PS...For those of you who need Zandor to confirm this...He did...to me.

I almost forgot. you will continue to have problems if you don't get better ventilation. Something I didn't mention about dehumidifiers...They cause heat, just like the back of an AC unit, or a "frig". Peace

[Weedhound]

Well that doesn't sounds good. Good point about the heat in the growroom.....I wouldn't mind it going up about 10 degrees in that little space but certainly no more than that. My hydro guy totally concurs with you and Zandor Latewood, he said to try to keep it in the 30s.

[Markass]

you don't want your humidity above 40-45% 60% will definitely promote powdery mildew, and mold...possibly budrot
Jorge teaches on the side of caution, and also they don't want tyou to give up...LOL, because you cannot get % to 40.

when they say 40-60...they mean 60% is as high as you can go without stopping production. I would never run my flower room at 55-60 % NEVER!!!

Go to ebay and spend 80-90 bucks on a used or refurbished model. I did, and my humidity is a constant low 40's. get a 30 pint, with an external connection...so you can plumb drainage. If you cannot afford this then you cannot afford to grow. I am not being mean...I am saying in the end yield and quality will really take a beating, if you do not get your humidity under control. You will end up losing time and $$$ well above the cost of a de-humidifier. Peace

PS...For those of you who need Zandor to confirm this...He did...to me.

I almost forgot. you will continue to have problems if you don't get better ventilation. Something I didn't mention about dehumidifiers...They cause heat, just like the back of an AC unit, or a "frig". Peace

I'll be getting a 30 pint off of ebay maybe within the next week. I've only got $40 left from my check yesterday..beginning of the month, it was going to purchase me a new bong but will now go to dehumidifier instead. I'm going to have to wait another week until I can get about $40 or so to pay for one with shipping. I get my check next wednesday, so it wont be untili then

[Weedhound]

Good for you Mark. Sounds like you need something meaner than what you have. I don't think my issue is nearly as bad as yours since things seem confined strictly to the grow space....not my entire corner of the world as yours is. ;)

[latewood]

Awesome. The best thing is you are moving in a positive direction.

I put off de-humidifier for months, but couldn't get humidity out of the 60's...It only took one bout with powdery mildew for me to put that machine at the top of my "desperate needs list" LOL

Glad you found the info useful. I use a 8" cheap vent booster fan from hopot to suck the extra hot air out of the area using an 8' to 6" adapter, and 6" flexduct. cheap and does the job of removinh hot compressor air.

Goodluck

[Weedhound]

Latewood, don't supposed you have any quick fixes for covering the tops of the waterfarms at night.....something easy to put on and take off. Thinking it could help w/my humidity issues after lights off.

[stinkyattic]

I checked my other paper references and the BOG also says 45% is the highest you should really expect to run and have no mold problems.
He goes on to point out that encouraging more, but smaller buds through pinching is actually beneficial in an environment that you are concerned about bud rot, as the smaller buds are less likely to develop mold deep inside them than huge, thick colas are.
I found that interesting.

[Weedhound]

Stinky I just read something along exactly the same line.....the bigger the colas the more dense they are and easier to hold more moisture and encourage budrot. AGGGGGGGGGG. Yes....no. Big....small....i'm going to go have a toke now....:stoned:

[Tomthehippie]

humm im beginning to wonder if this is a humidity problem...

[Weedhound]

I was wondering that as well. But after those good pics of Mark's I'm pretty convinced. But since you mention it Tom, Mark you've been checking your ph right?

[Tomthehippie]

yea i think its mostly likely the ph and over feeding. BB is so sesative to over fert - i recently had to flush mine and now iv stoped all bloom feed as they just didnt need it.

Heres one plant over fed with N and the others fine.

[stinkyattic]

Yeah definitely a LOT of N in that first pic but the second looks a little rich too.

[Markass]

yea i think its mostly likely the ph and over feeding. BB is so sesative to over fert - i recently had to flush mine and now iv stoped all bloom feed as they just didnt need it.

Heres one plant over fed with N and the others fine.

ph may be slightly above 7, my tap water is slightly above 7 and soil tester says about the same.

Over nute = no way. if anything, they would be underfed. Getting medium strength koolbloom and schultz 5-30-5 about 1 time a week..I burned them when I first started nutes some, but since then I've made sure not to give them such a high amount..

[stinkyattic]

30 is a REALLY high P number. And your P:K ratio is very high for cannabis.

[postmandave]

yeh man i would think either ph or overfert leaning more to the over fert one of the pics up there look just like a ph prob i had with b52 and it had the exact charicteristics that that leave shows pic 3 i think. how far you into flower now mark.the postman.

sorry didnt get to read your last post mark blueberry can be ultra sensative to nutes and salt build up can lead to overfert issues i found hope you get it sorted mate

[Tomthehippie]

Yeah definitely a LOT of N in that first pic but the second looks a little rich too.

yea! i agree! they really need so sooo soooo little feeding!

[Tomthehippie]

ph may be slightly above 7, my tap water is slightly above 7 and soil tester says about the same.

Over nute = no way. if anything, they would be underfed. Getting medium strength koolbloom and schultz 5-30-5 about 1 time a week..I burned them when I first started nutes some, but since then I've made sure not to give them such a high amount..

Man! i would stop all feeding flush the lot out and just feed with distilled water! do what i did and get some pk 13/14, has no N in at all so u can still fatten up your buds 2-3 weeks from harvest! :)

[postmandave]

There is a thread on hear somewere and the dude had grw blueberry numerous times and he put down ppm for nutes soil and hydro and im sure he never went over 400 ppm in soil grows thats how sensative blueberry can be but its well worth the effort and is meant to be up there with the best. be safe the postman

[Tomthehippie]

ar! just had a thought! its.. That there over N fed because the strain is so sensitive but also over P like stinky said, would that cause those effects?

[Weedhound]

Guys I cannot answer anything about PK ratios etc....especially in soil. I'm still set on a humidity issue. my opinion only. :)

[Tomthehippie]

There is a thread on hear somewere and the dude had grw blueberry numerous times and he put down ppm for nutes soil and hydro and im sure he never went over 400 ppm in soil grows thats how sensative blueberry can be but its well worth the effort and is meant to be up there with the best. be safe the postman

yea i was feeding them 600 ppm and they were still over fed! mad.

[postmandave]

ive never seen a humidity weedhound problem so it could well be just thowing some more ideas in the pool lol .I hate when problems arise in flower man its a sore head.the postman.

[Markass]

tom, koolbloom is 2-45-28..their first dose of k/b was given monday night I believe it was, I want to stray away from the schultz a bit if the plants are happy with the koolbloom just because it makes me weary of over feeding them...

Stinky, ratio may be high, but I've done 2 previous grows with schultz and although the grows never fully completed, my flowers were nice and healthy..

I agree that leaves have a slight ph/problem look to them and may could be attributed to homemade fungicide with baking soda/water..? high ph level of the spray is supposed to be effective at making it unsuitable for mold to survive..maybe it did that to the leaves? there are spots on the leaves that very truly looks like mold to me...and I've read that sometimes mold infestation looks like nute burn because of the way it affects the tips of the leaves...the way some of the leaves are yellowing and falling off almost makes me wonder about lack of nitrogen..

[Markass]

ive never seen a humidity weedhound problem so it could well be just thowing some more ideas in the pool lol .I hate when problems arise in flower man its a sore head.the postman.

dave, today makes 4 weeks into flower.

[Markass]

here are a couple more pics, hard to get pics of affected leaves..as there are not many, but here's something that particularly made me think "rust" in the first pic..

[stinkyattic]

last pic I'm thinking possibly calcium is deficient or locked out... lock=again, see overfert + pH prob.
but you have so many things going on I am hesistant to point at any single factor and say, that's your problem.

[Weedhound]

Guys since the discussion has gone to soil I'm going to back out of the equation.....there are far more experienced minds here for soil than mine. I will follow this Mark and wait to see what the actual issue seems to be. Whenever I think of soil I cringe so better I observe. :D ;)

[Markass]

last pic I'm thinking possibly calcium is deficient or locked out... lock=again, see overfert + pH prob.
but you have so many things going on I am hesistant to point at any single factor and say, that's your problem.

with calcium problem, I've looked at pics in problem threads for calcium, have spots yes, but I don't see much as far as yellowing and falling off...that's probably moreso than the spots...the stems get really weak where they connect to the main branch and once are completely yellow you can merely touch them and they fall off..

[stinkyattic]

Well this thread is 4 pages long and we haven't settled on a diagnosis, lol.

When in doubt,

-Flush your soil like a mofo

-pH your soil to 6.8

-use a complete fert, perferably cannabis-specific

-if your plant is more than 12" tall for every gallon of soil, or shorter if it aggressively trained, put it in a bigger pot with a quality compost and lots and lots of perlite.

This procedure will solve most problems that are not related to temps or humidity or overwatering or bugs.

[Weedhound]

Mark I got my dehumidifier and had no idea how tiny they were.....I was thinking maybe 18 inches but it's alot smaller than that. I've already ordered a second.....

Actually I'm pretty happy w/my diagnosis. I think you are seeing normal yellowing of fan leaves during flower and because they are dying they are the ones most likely to get leaf spot.......which is what I think that is. Mark may have a point about the baking soda but I don't think that is something that will harm the healthy leaves....witness those nice buds. The weakest leaves are taking the brunt. I thought that was normal for a plant. ;)

Mark did you say that puppy brought your humidity down 10%?

[Markass]

Mark I got my dehumidifier and had no idea how tiny they were.....I was thinking maybe 18 inches but it's alot smaller than that. I've already ordered a second.....

Actually I'm pretty happy w/my diagnosis. I think you are seeing normal yellowing of fan leaves during flower and because they are dying they are the ones most likely to get leaf spot.......which is what I think that is. Mark may have a point about the baking soda but I don't think that is something that will harm the healthy leaves....witness those nice buds. The weakest leaves are taking the brunt. I thought that was normal for a plant. ;)

Mark did you say that puppy brought your humidity down 10%?

yeah, I can say about 10%...I hope you're right, weedhound..it'd pop my top if my buds started getting affected..still working on getting a big dehumdifier

[Weedhound]

Mark these are your plants....you are going to live or die by them. (you know what I mean....:D ) I am less worried about overfert, ph etc for one reason.....I know you've already dealt with both of these issues and have your eye on them. Am I wrong in thinking that you will not make the same mistake twice? That is what I am betting on. But ultimely of course, you have to make the decision what is best and I will certainly support you no matter how you go about dealing with it. These people have much more experience than I do in growing in soil.....no question there. I do think, though that you will have issues until you can solve your humidity problem. My feeling is that you are trying to cure an infection without penicillin or something......you can only do so much. That's why I think you need to get drastic with things. Cut those damaged leaves. Put fungal spray on a rag and wipe down your walls with it. The more proactive you get the more you will hedge your bets. ;) (Disclaimer: again....you must follow your own instincts...)

My camera totally sucks w/close-ups so unless you want a shot of a big fuzzy blur I'll have to wait until I get my cool new one. :D

I must say though.....I've been an uproar myself since discovering my own humidity probs. It's funny how fixing one problem opens up the door to another. :wtf:

[Tomthehippie]

Well this thread is 4 pages long and we haven't settled on a diagnosis, lol.

When in doubt,

-Flush your soil like a mofo

-pH your soil to 6.8

-use a complete fert, perferably cannabis-specific

-if your plant is more than 12" tall for every gallon of soil, or shorter if it aggressively trained, put it in a bigger pot with a quality compost and lots and lots of perlite.

This procedure will solve most problems that are not related to temps or humidity or overwatering or bugs.

i still agree with stinky! :)

[postmandave]

I must say though.....I've been an uproar myself since discovering my own humidity probs. It's funny how fixing one problem opens up the door to another. :wtf:[/quote]


Yeh man ! know what you're on about there.Mark have you checked the buds for any sign of mold as if its in your room it will be around the buds ?the bottom of the stem of the buds usualy will show signs of mould as it spreads really really fast .Its a bad problem to have in flower especially at the half way stage.So as weedhound says take drastic actoin and get those affected leaves off and wash down the walls.can you get a hold of a sulpher burner and some sulpher tabs or someother method to rid you of it.
You gotta act now if you beleave its mold cause beleave me it spreads real quick and will affect the buds quickley also it yellows the leaves around the buds just like what happens natuarly in late flower. best of luck and hope you get to the bottom of it.hears a pick of a buds that had mold in the last half of 12/12 i never noticed till harvest time be safe the postman.

[Scarlet Sky]

mark, i may be way off here, but, did you treat for mold when the lights were on? it looks to me like there was water on the leaves while the hps was burning, creating hot spots that burnt where ever there was water; i could be way wrong, but it looks identical to the problem that i had with my first shot with neem.

it looks like a deff or lockout, but then again, it doesn't.....

[Weedhound]

Hey Scarlet....I thought your gecko was a male. ;)

Postman.....what a cool pic. :thumbsup: You sound like you've been there and done that with mold.

[Weedhound]

Tom I like a man (or woman) who stands by their belief. I will do the same. ;) I get afraid of too many cooks spoiling the soup but realize these minds are excellent soil growers so will step out if Mark takes another route cause I sure don't know anything about soil ph etc and I don't want to screw things up for Mark which may happen if I throw something into a recipe that I am clueless at.

btw....love your shed. :thumbsup: That thing totally rocks.!!!!!!

Postman I can't enlarge that photo. Is that just me? :(

[Scarlet Sky]

Hey Scarlet....I thought your gecko was a male. ;)

Postman.....what a cool pic. :thumbsup: You sound like you've been there and done that with mold.

one male, four females; one happy orgy; i mean family :D

[postmandave]

Weedhound dont know why the pic wont enlarge i snatched it from a previous post on this site from last year so maybe this happens when you save .Heres a link to the original thread that you might be able to zoom in on them there,as i said i never noticed the mold prob until harvest and it only affected the one strain a cross between lambsbread and white russian i done. hope it helps you out. the postman.
http://boards.cannabis.com/indoor-growing/81952-mobay-3.html

[Weedhound]

Thanks for the pics but I notice you did not mention mold issues in your thread. (or not on the page i looked at anyway.) How did you find out what the issue was?

ps nice-assed buds btw

[latewood]

m missed this earlier. you asked what is flushing. Well Loc Nar, had the end/finish flushing covered, but if you have an environment or toxidity problem...with a waterfarm you just need to empty your rez, and add ph5.8 water. (((soil 6.5.)))

anyway, turn pumps on for an hour or 2. then add fresh batch of nutrients.

However, you are done...so just remember this info for next time. Peace

[postmandave]

You know going through that thread and looking at the pics weedhound i can now spot the signs of the mold probs but at the time i didnt think there was a problem i thought it was just a bit of heat stress and later the natural yellowing of leaves in flower but when it came to harvest i had mold inside some of the buds not bad but it was there all the same:mad: and looking now at the prob i put down to heat stress it may well have been signs of mold.Im taking the same stance of you on this one and stepping out as you said i dont want to be responsible for wrong diagnosislol.as you said to many cooks can spoil the broth but i will be following this with great intrest as plant problems is one of the areas of intrest for me. so mark follow your head mate you will feal as to what the real problem is hear.best of luck and be safe ,. the postman.

[Weedhound]

I like it postman!!! You go!!!:)

[Tomthehippie]

:D lol! maybe is a bit of both? :)

[Weedhound]

Could be could be Tom.....my reason for running is because the moment the issue steps away from mold into something else I'm useless. And being useless always reminds me how old I am... :D ;)

[stinkyattic]

Never underestimate the value of a healthy immune system in a plant.
A stressed plant is more prone to disease.
Potassium is important for a healthy immune system.
If it is locked out, you are going to have problems.
Also, Silica is beneficial to strengthen your plant's defenses.

[Weedhound]

Very true Stinky. I also found what postman said about the mold attacking only one strain interesting so differences......even in the same growroom.

[stinkyattic]

Yeah, even with bugs, sometimes I see one plant get chowed and others untouched.
Lately the thrips have been after my White Rhino crosses. Yet the SourBubbles right beside them are healthy!

[Weedhound]

Chowed, lol. Haven't heard that botanical term before. Learn something new every day. :)

[postmandave]

:wtf: Funny you say that about potassium lockout stinky cause this pic of marks below .I have had this before with a potassium deficiency could this be a nutrient deficiency rather than over fert ?pic 2 also looks like a deficiency prob rather than a overfert the leave seems drained rather than burned. lol sorry i can leave it alone:D

[Weedhound]

Well I AM positive about one diagnosis....Mark would be thrilled if the problem could be fixed....;)

[postmandave]

yeh i totaly agree.

[Markass]

here's another of a fan leaf I pulled off a bit ago..koolbloom is really starting to make these things get with it...only my topped plant is having yellowing issues really..it's the second thumb you posted dave is leaf from it...first pic is of the one

[stinkyattic]

Pic 2 of Postman and pic 1 in last set of MArk's both show what I believe to be Calcium def, where the leaf gets necrotic near the origin of the fans, rather than at their tips.
Lockout or deficiency; either way, the plant is not getting what it needs.
But there are also signs of tox, so I'm going with lockout.
This thread is going to be going long after the plants are just a puffffff of smoke...

So have you flushed yet?

[Tomthehippie]

Flush man flush! :D

[postmandave]

another things for sure you got some nice bud coming there mark:jointsmile: :D

[Markass]

thanks dave, as for flushing, no big serious amount, they each get 64 ounces of water, about 4-6 ounces runs off...not as much as I'd like to run through there, but it'll have to do. I cannot move them out of the room and I cannot run much excessive water through due to humidity problems. Next couple times they'll get fresh clean water.

[Weedhound]

Hey Mark what has your RH been lately? Any improvement in the temperature there?

[postmandave]

Thats what to do mate.its all a learning experience and it is a very difficult strain.as i said man you got the smoke coming man.enjoy.be safe the postman.

[Tomthehippie]

im never growing bb again as im sure dave will tell you. Grrr...

[postmandave]

yeh but i heard blueberry is on kick ass smoke so its worth the hassle also ive learned loads on growing this strain from marks thread and toms grow .So thanks lads i will be well prepared for when i get round to bb.the postman.

[Markass]

yeh but i heard blueberry is on kick ass smoke so its worth the hassle also ive learned loads on growing this strain from marks thread and toms grow .So thanks lads i will be well prepared for when i get round to bb.the postman.

I've never grown other strains, but compared to the bagseeds I grew, these 3 were very much more particular about their nute intake..I had already read that before, but I've also heard people say that they needed more nutes, or were just fine with a regular strength...I had to back mine way off at first then got it leveled off to an appropriate amount..would I grow blueberry for the rest of my life if I had to choose one strain, oh yes, yes I would. I've had the pleasure of smoking some of it and I loved the effects..I'm sure I'll fall in love with most other strains I grow as long as they're indica dominant, but it is very much worth the effort dave :thumbsup:

Thanks everyone for all the advice, getting used dehumidifier into the works, trying to find a decent one that isn't gonna kill on shipping..I'll keep you guys updated on how things go

[Weedhound]

Mark I stand by the weedhound strain. Let me know after you try it. :D

[stinkyattic]

64 z of water you should be running off min 7z.... soils that fucked... treat almost like soilless... 10%runoff is for a healthy system. yours is not. your runoff should be enough to actually call it a real flush. basic flush=3x vol. then after that go with the 10%runoff. freal. please flush so this thread can die a dignified death... pleazzzzze??????