Is this rust fungus?

RIS

RIS

Well-Known Member
I found a couple spots like this in my plants. My assumption is that this is rust fungus. It’s only affecting a couple of leaves on different plants.
Can anybody confirm this is truly rust fungus?

Edit: I put this in the wrong spot, sorry, this should be in the plant problems sub forum
 

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Red Hard Head

Well-Known Member
Unlikely. Ive not heard of cannabis being susceptible to rust fungus.
Looks necrotic that spot. The leaf itself is showing early nutrient deficiencies. Potassium and calcium deficiencies can become necrotic.
The shape of the spot also suggests possible foliar burn from a spray maybe.
More info needed rule out differential diagnosis of anything.
 
Boatguy

Boatguy

Well-Known Member
RIS said:
They attempted to flower early and are going back to veg. Gelato 33 is the strain.
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I think you are fine. You should wait till you see normal growth again before you worry about random dead spots
 
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harrychilds

harrychilds

Well-Known Member
I don't know the problem but your leaves almost look like a re-veg, although it's probably not. If you can provide more information I could probably diagnose your problem. Are you in coco? Soil? what is your PH? your EC? temps? Humidity? There is a lot of info missing for me to even begin to start to help you. How old are you plants? are they in veg or flower?
 
Boatguy

Boatguy

Well-Known Member
harrychilds said:
I don't know the problem but your leaves almost look like a re-veg, although it's probably not. If you can provide more information I could probably diagnose your problem. Are you in coco? Soil? what is your PH? your EC? temps? Humidity? There is a lot of info missing for me to even begin to start to help you. How old are you plants? are they in veg or flower?
Click to expand...
You should read the thread
 
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