Rusty looking leave's ????

[budbudding]

Hi

I have been trying to find out why some of my leave's have rusty looking marks on the leave's but cant seem to find anything, Some have spots and some have big patches down the centre of the leaf ,
Would anyone know anything about this , ???

[Treez81]

Could be a few things. Post pics and fill out the troubleshooting form.

[xxxhazexxx]

need to see a pic dude but its most likely mg dif flush your plants and start feeding again in a week or so 1/4 strengh then bring the nutes up weekly 1/4 strengh at a time it must be a big flush dude :thumbsup:

[Treez81]

I would fill out the form and post pics before doing anything.

[budbudding]

I would fill out the form and post pics before doing anything.

Thanx for the quick reply guy's ,. I will put pics on in 2hrs , light due on then ,. :Thumbsup:

[budbudding]

Thanx for the quick reply guy's ,. I will put pics on in 2hrs , light due on then ,. :Thumbsup:

Your Equipment:
.1) Type and wattage of lights. (MH, HPS, CFL's, tube fluorescents, LED's)...600watt HPS
.2) Distance from tops? 2FT
.3) Reflector type? (cool tube set-up, bat wing, enclosed reflector, bare bulb...) bare bulb
.4) Is there a consistent fresh air supply? yes , 4" ducting from a extractor fan out side to the tent
.5) Do you have an exhaust fan and a circulation fan? yes 4 "
.6) What are the bulb wattages, kelvin ratings, and schedule? 600watts 18/6

Your medium:
.7) Specific brand and type of soil, (coco, peat based soilless...) and anything you've added to it. (vermiculite, perlite, worm castings...) Plagron grow mix with perlite
.8) Size of container. 4 gallon
.9) Did you use peat pucks (or similar) to root clones or germinate seedlings? no

Your nutrients and water:
10) Source of water? (tap, bottled or filtered) What's it's ph before adjusting? tap water ph7.8
11) Method of checking water ph. (ph pen, test strips, aquarium test kit...) ph meter
12) Method of adjusting water ph. (phosphoric acid, white vinegar, hydrated lime, PH Up...) phosphoric acid ph down
13) Specific brand and N-P-K ratio for each bottle. List dosages (quantity per gallon) and current feeding schedule. for mister i use canna rhizotonic 0.6-0.2-0.6 , canna Terra flores 2-2-4 this has only been used for 1 feed , noticed problem b4 use
14) How often are you watering between feedings, and how much per watering? 3-4 days 2ltrs
15) Any additives or tea's? (Superthrive, CalMag, molasses, Mother's Earth...)no
16) Are your ph levels stable, or do they fluctuate? stable seems to raise , when i leave the water standing for a few days , has raised to 8.2
17) What is your ingoing water's ph? ...your runoff ph? 6.3 in runoff is 6.7
18) Do you foliar feed? If so, with what, how often, and at what time do you spray? Was doing 2 times aday with lights on once when off

Your growroom:
19) Indoors or outdoors? in doors
20) What size of closet, room or hut? grow tent 1200x1200x2000
21) What are the temps and humidity levels while lights are on? ...With lights off? lights on 79-83 rh 40-50% when off 62-67 rh 45-60%
22) Have you seen signs of insects in the growroom? no

Your strain:
23) What strain are you growing? (Indica dominate or Sativa dom?) not sure?? , Jack herer
24) From seeds or clones? cuttings
25) Is this an autoflower strain??....???

Pics to follow !

[budbudding]

Cant seem to upload pics at the min , so i'll try and describe as bes as i can ,

First i noticed a little brown line on one of the bottom fan leaves , i was keeping me eye on it for a few days and now it looks like its rusting , but now it seems to have move up the plant mostly the fan leaves , some have rusty coloured dots but most have it in the centre of the leaves,. Also the stems are really going purple and leave are going dark green , I think the plant is really stressing now!!

MG ????? SHOULD I FLUSH ?? IF SO WHAT SHOULD I PH THE WATER AT AND WILL IT BE FINE TO USE IT STRAIGHT FROM THE TAP ,MAYBE MIX SOME HOT WATER TO BRING TEMP OF THE WATER UP ???

[Treez81]

I'm not an expert in this area. After u post pics I'm sure someone will be able to help. Everything seems ok except that u foliage feed. Quit that. In nature when does god ever foliar feed? The plant has roots for a reason. I know when I water sometimes the lower leaves get wet and it turns them rusty. But like I said I'm no expert at solving others problems.

[donnachris]

what and where is a troubleshooting form?? i've not seen anything like that. where do i go look for it??

[seventhchild]

http://boards.cannabis.com/plant-problems/127058-troubleshooting-form-yay-you-know-you-wanted-one.html

[WashougalWonder]

Yes look at that link, it may give you ideas. d

From the form I see nothing that stands out. Possibly simply a flush....

How big are the plants in 4 gal containers? Chance they could be root bound?

Get a reflector for the bulb, you are wasting 50% of your light

So to summarize,itI could be magnesium/calcium def, nute lockout, or root bound. Mag/cal def is pretty noticeable and does cause central leaf issues as you describe. Regardless a moderate flush could help. Don't wash out all the buffers

[budbudding]

Yes look at that link, it may give you ideas. d

From the form I see nothing that stands out. Possibly simply a flush....

How big are the plants in 4 gal containers? Chance they could be root bound?

Get a reflector for the bulb, you are wasting 50% of your light

So to summarize,itI could be magnesium/calcium def, nute lockout, or root bound. Mag/cal def is pretty noticeable and does cause central leaf issues as you describe. Regardless a moderate flush could help. Don't wash out all the buffers

Sorry the pic is poor but you can just see it , some leaves are like that and worse, and some have spots that are the same colour

[Gatekeeper777]

is it running on the vein?

[budbudding]

is it running on the vein?

Hi Gkeeper

No the vains seem fine , its running either side of the vains , if i look under the leaves the vains are good , But the underneath is showing the problem but is not a rusty colour yet just looks a dark greyish colour,

I dnt know if this heps but the leaves feel really dry a rough, and the nodes are a purple colour!