yellowing of leaves

[mattas]

i'm on day 15 of flowering and am getting rapid yellowing of the fan leaves
i have read that this can happen during flowering but thoufght it happened near the end of it,
it first started with the older fan leaves and now the newer leaves are starting to yellow almost like they are fading(ha stoned moment)
i'm ferting with a combnation of blood and bone with a n 15 p 3 k 7 ,i'm going to be adding potash with a k 60 will this help

[PlainJane]

A photo and a bit more info via the troubleshooting form (http://boards.cannabis.com/plant-problems/127058-troubleshooting-form-yay-you-know-you-wanted-one.html) will probably get you some better answers.

[HARDDON]

Get a good water pH tester.

[mattas]

right i found mites on my plant ,thank goodness for this site
i sprayed them today with a neem / garlic spray, will this get rid of them?
it says to spray weekly ,will this affect my flowers and if my plants make it to harvest,
will this spray affect them
about half the leaves have fallen off will this affect the yeild

[stinkyattic]

PLEASE fill out the form.
Also, your fertilizer is wrong for flowering cannabis. Don't add more potash until you have checked your runoff pH to rule out pH problems as a source of yellowing.
Pics would help too.

[justanotherbozo]

right i found mites on my plant ,thank goodness for this site
i sprayed them today with a neem / garlic spray, will this get rid of them?
it says to spray weekly ,will this affect my flowers and if my plants make it to harvest,
will this spray affect them
about half the leaves have fallen off will this affect the yeild

get yourself a no-pest strip and get it into your flowering room right now,
and not the kind that's just sticky tape to catch flys with.

fill out that form man, PlainJane even put up a link to it for ya

[mattas]

E-indoor or outdoor/ indoor
E-soil, soilless, coco, aero, or hydroponic /soil
E-specific medium
CSL-Soil type/brand/potting mix with osmoses , always use it for outdoor
HCL-Hydro/aero/soilless system type
SCL-Anything you have added to the soil
SCLR-Soil or slab runoff pH
E-Water source/tap
E-Source water pH/7 run off 6.8 to 7
HRT-Source water EC (if hydro)
E-Age of plant/6 weeks
E-Type of fertilizer/ blood an bone npk 15,3,7
E-Rate of application (if hydro, this is your PPM number, preferably after each component is added)
E-Lighting source and distance from plant /400w hps 250mm away about 1 ft
E-Air temperature (both day and night if you are running a dark period)/24 c
HD-Reservoir temperature
E-Air % Relative humidity/ unsure
E-Lighting schedule/ 12-12
E-Type of ventilation your room has/120mm intake/exhaust 160 c/m

spoke to the dude at the hydro shop and he said the sticky traps would not work on the mites so sprayed with an organic spray for mites, only prob is one of my plants now looks like its dying
sdorry cant post pic as i dont have a camera
oh yeah i found some rust spots on the top fan leaves these are closet to the light , is it light burn or a fungal thing?

[mattas]

here's a photo ,forgot to mention the 2 outside plants are jack herer the middle 1 is a mystery seed

[VapedG13]

right i found mites on my plant ,thank goodness for this site
i sprayed them today with a neem / garlic spray, will this get rid of them?
it says to spray weekly ,will this affect my flowers and if my plants make it to harvest,
will this spray affect them
about half the leaves have fallen off will this affect the yeild


mites once you get them.....the are hella hard to get rid of

you can kill the adults with the neem oil, safe soap, ect ......its the eggs that hatch every 3-4 days that get us.

only thing I have ever used that actually got rid of the mites was RID...it makes the adults sterile (no eggs)attacks their nervous system

best time to apply the rid is when the mj plants are seedlings as the rid will stay in the plant for 2 months....use plastic gloves and spray outdoors... WASH HANDS ARMS WITH SOAP AND WATER AFTER APPLYING

[VapedG13]

..........EDIT to the above post..........

The pesticide I used to kill spidermites was AVID not RID :thumbsup:

RID is for headlice

my babies 9 weeks of flower:vap_rasta:

[mattas]

i added some epsom salts at half the reccomended dose today to see if this helps the yellowing of the fan leaves,
the plant on the left in the pic is starting to look at bit more alive and seems to be developing bigger flowers ,so my not be as stuffed as i first thought or as the photo suggests,
as for the spider mites ,i have been checking daily and there doesnt seem to be any sign of them so may be my spray worked?
up to day 24 of flowering and seen the first signs of trichs

[stinkyattic]

Why does everyone think that Epsom salts are some kind of miracle cure!? There's NO evidence of Mg def; that is a straight lockout from over fert, and Epsom salts are going to make it worse.
'DON'T add more soluble Potash until you have ruled out other issues' does NOT mean add Epsom salt instead...
Your problem is that you are running a nightmare fertilizer combination that is inappropriate for flowering indoor cannabis.
Osmocote is a slow-release soil fert that is very difficult to work around.
Your blood n bone mix is completely wrong; flowering plants need LOW TO NO nitrogen and lots of phosphorous.
On top of that, the mix of a slow release soil fert plus an available fert is just asking for trouble- those plants are burned VERY badly from over fertilizing. You're supposed to wait until AFTER harvest to set them on fire....

They also would have benefitted from a transplant at the start of flower by the looks of things.

Tear off those drain trays on the pots and run 3 gallons of tap water throuhg each pot. Then feed with a correct BLOOM fert at 1/4 strength immediately.

You are close to harvest and will be going into your flushing time very soon, and if you don't flush all that crap out, NOW, your buds will taste disgusting and chemmy.

[mattas]

going to flush tomorrow, when you say blooming nutes is that a fert with both high p and k ? will potash not do?

[mattas]

just went and brought some gauno superbloom which has a high p,
this and the potash together should be a good combination?
plants looking healthier after flush and refert,