Hi there,

I have 2 plants in veg stage, i think they might have a potassium deficiency but im not sure, about 2 weeks ago they had quite a few spider mites which went unnoticed for a few days until the plants started looking a bit unhealthy, since then the spider mites have been removed but the plants haven't recovered, they have purple stems which have lightly started to go away after a few days but its not completely gone, the leaves are yellowing from the outside towards the center like a Nitrogen and potassium deficiency and are curling down slightly, not a lot, a lot of the young leaves have little yellow tips and the older leaves also have yellowing tips but they also have slight burnt tips, some leaves also have little brown spots, they look like burn marks caused by a potassium deficiency, some older leaves also have rust color blotches like a potassium deficiency. Little leaves have started developing rust colored marks, like a nutrient burn, like its been burnt from the tips but i doubt its over fertilization, how would i know the different though??

It could very well be a potassium deficiency but Ive read that with a potassium deficiency its likely that Phosphorus becomes toxic and the plants need to be flushed. What should i do next? If i just feed more NPK for a N or K deficiency it could make a nutrient burn a toxicity worst but if i flush wouldn't that make the N or K deficiency worst???

Please, can anybody help me??

,
Charl.

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Hi,

You know those spider mites lay eggs and you need to treat again in two weeks if you see them or not. The next day wash it off with spray of water.

I have had similar problems in my waterfarm grow. Heres something from the growers bible.




The fourth pic of the leaf looks more like a nitrogen def. Maybe its the pH thats off. That would explain multipal def. Hope that helps ya.

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Waterfarm (completed) Cabinet to Waterfarm (completed) Nute Challange (completed)

LED/T5/400W Cabinet (completed) Dual Cabinet Build (current) Dual Cabinet Grow (current)

What is your pH at?? Both input water and runoff? Also, disease is a possibility.. Mites can cause infection, as can other things.. Also, have you lifted them out to take a gander at the roots??

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The dudes in dirt man.

__________________

Waterfarm (completed) Cabinet to Waterfarm (completed) Nute Challange (completed)

LED/T5/400W Cabinet (completed) Dual Cabinet Build (current) Dual Cabinet Grow (current)

I've always found a way to see a root or two atleast in dirt when I've felt it necessary.. Then again, I'm one of those OCD ppl who's willing to sit there for a few hours working out a game plan of sorts, before jumping in and doing more damage than necessary.. Perhaps you're right though, if the person doing it feels uneasy about it, its likely to go bad..

High there,

The Spider mites shouldn't be a problem, i sprayed them 2 weeks ago with bio-grow( containing pyrol) and less than a week ago with the other bio-grow (containing neem oil). I also introduced a preying mantis to eats some eggs and mites. My PH of nutrients im adding is 6.5, i haven't checked the PH of run-off but i will next time i feed. I'm growing in a peat and perlite mix with GHE Flora series nutrients, so its basic hydro. If i move the top layer of peat away, roots are white, to me that means the are healthly or not been eaten by nats. ( i dnt have nats )

So you guys reckon i should flush them and then feed NPK??

There could be a multitude of problems from a nute def to lockout to reaction to the shite you sprayed on them. I would give it a good flush and wait a few days then feed 1/4 - 1/2 strength nutes with Cal-Mag+ added into the mix. Of course PH is a big factor. With that mixture of growing medium, you should be at 5.8ph....not 6.5. Give it a whirl and see what happens

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Kali Mist/Colombian Red Haze journal

Here's my last grow AK47 and PPP in hempy journal

is Cal-Mag+ calcium and magnesium?? How would i add that, im using
the GHE flora series, wouldn't i simply mix a stronger nutrient solution??

What kind of problems could the organic pesticide cause??