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Yellow dots on leaves

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Yellow dots on leaves

MrGreen17 3 Replies 2,436 Views
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MrGreen17

MrGreen17

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#1
Hi wondering if anyone could advise me I have some yellow spots on a few leaves.

Led lights are about 14 inches away

PH seems fine in coco around 5.7

Im adding cal mag at about 7 ml per gallon

Canna a and b at 12 ml

I cut back on the cal mag as I thought I could be giving too much it appears its on a lower leave so don't thnk it could be light burn.

Thanks guys.
 

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#2
The light is kind of weird, but it looks like the start of PM (powdered mildew). I am no expert but have been told that the same that fixed my spot problem (Septoria Leaf Spot ) will also take care of PM. I mixed mine per the instructions and applied with a fine mist sprayer every 3 days to start, then taper off to once a week. The product is called Regalia-CG. My experience with it can be found starting here ==> https://www.thcfarmer.com/threads/ansel-adams-hydro-adventures-journal.108531/post-2361458

Regalia® | Control Powdery Mildew | Marrone Bio Innovations
RegaliaRegalia® Bioungicide delivers improved crop yield and harvest quality by stimulating a plant’s ability to fight diseases. Effectively control Powdery mildew.
marronebio.com
marronebio.com

forewarned, this shit is expensive (Amazon). But it works 😍 🙏 and a little goes a long way so you can buy the small bottle.

It was recommended and seconded by a couple of OGs' from the Farm.

Good Luck & Happy Farming 🥂🍻
 

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#3
AnselAdams said:
The light is kind of weird, but it looks like the start of PM (powdered mildew). I am no expert but have been told that the same that fixed my spot problem (Septoria Leaf Spot ) will also take care of PM. I mixed mine per the instructions and applied with a fine mist sprayer every 3 days to start, then taper off to once a week. The product is called Regalia-CG. My experience with it can be found starting here ==> https://www.thcfarmer.com/threads/ansel-adams-hydro-adventures-journal.108531/post-2361458

Regalia® | Control Powdery Mildew | Marrone Bio Innovations
RegaliaRegalia® Bioungicide delivers improved crop yield and harvest quality by stimulating a plant’s ability to fight diseases. Effectively control Powdery mildew.
marronebio.com
marronebio.com

forewarned, this shit is expensive (Amazon). But it works 😍 🙏 and a little goes a long way so you can buy the small bottle.

It was recommended and seconded by a couple of OGs' from the Farm.

Good Luck & Happy Farming 🥂🍻
Click to expand...



Hey thanks for the reply, I tried out some neem oil, didn't seem to do anything, and did some more research and I actually think its spray burn, due to me spraying with the lights fully on, as the dots havnt changed Shape or colour or gradient with over a week. Thanks for the help!
 
#4
MrGreen17 said:
Hey thanks for the reply, I tried out some neem oil, didn't seem to do anything, and did some more research and I actually think its spray burn, due to me spraying with the lights fully on, as the dots havnt changed Shape or colour or gradient with over a week. Thanks for the help!
Click to expand...
Just curious, what became of your problem. . .were you able to resolve it.
 
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