Weird White Powder On The Leaves

[Miko2]

Guerilla growing, 7 weeks old, noticed some white stuff on the leaves for a while, but seems like the plant keeps growing OK, last time I checked there was a large amount of this white thing, What can it be ?

I've added pictures:
a.jpg and b.jpg are the newest, a.jpg shows an area with a large amount of this thing.
c.jpg is from when it was 4 weeks old.

 

[jdo0bie]

are you foliage spraying? Could be the residue from that?

 

[Miko2]

are you foliage spraying? Could be the residue from that?

Nope, It is watered directly to the ground, this thing shows up days after the plant is watered.. (not sure when during those days)

 

[vostok]

Pm...? Neem Oil is your friend, others use baking soda or sulfur

 

[Miko2]

Pm...? Neem Oil is your friend, others use baking soda or sulfur

What's Pm ? Powdery mildew ?

Yes Neem oil was used about a week and a half ago, this leave was there when it happened..

 

[vostok]

here: https://www.rollitup.org/t/1st-time-powdery-mildew-controled-but-not-stopped.835098/#post-10671266

 

[Miko2]

here: https://www.rollitup.org/t/1st-time-powdery-mildew-controled-but-not-stopped.835098/#post-10671266

Thanks !

About a week ago I made a thread about H2O2 and people laughed at me .. I guess I wasn't that wrong after all

 

[Diabolical666]

Thanks !

About a week ago I made a thread about H2O2 and people laughed at me .. I guess I wasn't that wrong after all

I use it too

 

[Miko2]

I use it too

The plant was just Neemed, if it doesn't help, the plant will be watered with H2O2 or so ..

Here are new pictures of the plant (before Neeming), I have a small question, in b.jpg , on the lower half of the main stem, there are new small leaves, will they grow to be small stems ? is that normal ?

 

[vostok]

...on the lower half of the main stem, there are new small leaves, will they grow to be small stems ? its normal and no they won't grow to branches, if you want that look to topping or fimming at the 3 rd- to 5 th internode in early veg, right now time for a flush to wash out those excess nutes that causing yellow lower leaves to my blog:

https://www.rollitup.org/Journal/Entry/flush-baby-flush.27513/

 

[Miko2]

...on the lower half of the main stem, there are new small leaves, will they grow to be small stems ? its normal and no they won't grow to branches, if you want that look to topping or fimming at the 3 rd- to 5 th internode in early veg, right now time for a flush to wash out those excess nutes that causing yellow lower leaves to my blog:

https://www.rollitup.org/Journal/Entry/flush-baby-flush.27513/

I actually thought it was because there weren't enough nutes, new growth taking old leaves' nutes, are you sure ?
It's like doing the opposite thing, risky

Thanks for your guide

 

[BenFranklin]

Use Azamax. It is a fungicide and pesticide and does not leave a taste like NEEM, what so ever.

 

[vostok]

from above ^^^ "Guerilla growing, 7 weeks old" Vegging time is over.. that closed on the 22nd last month, God commands all living creatures, to seed!!!, no nice leaves for you, hence the plant requires No (N) but needs (P) and (K) that shes got ...wait and see...lol

 

[Miko2]

from above ^^^ "Guerilla growing, 7 weeks old" Vegging time is over that closed on the 22nd last month, God commands all living creatures, to seed!!!, so no nice leaves for you, henace the plant requires No (N) but needs (P) and (K) that shes got ...wait and see...lol

Hmm not sure I got it, are you saying I should flush and than switch nutes to the flowering nutes ?

 

[vostok]

No I'm saying you are in bud and at this stage their is very little to do ...other than hunt out bugs and mold, not really that much you can do with mold(PM) other than encourage a breeze way so the plants may dry out quicker after a wet day, remove as much dead vegetation from the grow area, and the best is ... 'to grow earlier and harvest earlier so you don't get he same PM issue next year, but heavy use of Neem for this time of year is a good move, but not within 2 weeks of harvest, in most instances the Neem taste has dissipated during the drying and curing stage .. good luck

 

[Miko2]

No I'm saying you are in bud and at this stage their is very little to do ...other than hunt out bugs and mold, not really that much you can do with mold(PM) other than encourage a breeze way so the plants may dry out quicker after a wet day, remove as much dead vegetation from the grow area, and the best is ... 'to grow earlier and harvest earlier so you don't get he same PM issue next year, but heavy use of Neem for this time of year is a good move, but not within 2 weeks of harvest, in most instances the Neem taste has dissipated during the drying and curing stage .. good luck

hmm I don't think the plant is in bud, I can't even tell it's sex yet, it's 7 weeks old..

Picture b.jpg was taken 1 day after a.jpg.

Seems like the lower leave turn more and more yellow, the plant was fed with nutes when a.jpg was taken, does that mean for sure the plant is over-fed ?