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disease Possible Powdery Mildew

My Lemon Drop was growing beautiful and healthy, and then suddenly the growing tips started developing tiny spots with yellowing, and the leaves started dropping. It looked like a deciduous tree in the fall when I touched it, leaves just dropped right off. Undersides of the leaves had fuzz on them near the base of the leaf stalk. It started small but is spreading rapidly to all growth tips. I sprayed it with micronized sulfur, I'm hoping that helps. If it doesn't, not sure if I should cull it so it doesn't spread. That would break my heart because I've really been looking forward to the Lemon Drops this year. Can I get confirmation of powdery mildew, or if you believe it is something else, please let me know? I do acknowledge that air flow is not great around these plants, now that they are so bushy. Photos below of the issue, plus the whole plant from two days ago. Thank you for any help.
71425 Powdery Mildew 1.jpg
71425 Powdery Mildew 2.jpg
71225 Lemon Drop Whole Plant.jpg


Note white fuzz on base of leaf in lower right of this photo:

71225 Lemon Drop 1.jpg
 
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That's really disappointing. I don't think that's powdery mildew and, even if it were, something else seems to be going on with the leaf spotting and dropping leaves. You could consider removing a branch or two from the center to open up air flow. I sometimes do that with caged plants when the foliage gets too compact. Usual caveat though of being careful about spreading infection on cutting tools when not sure what might be wrong with it.
 
. I don't think that's powdery mildew
I don't either.


Powdery mildew is easy to prevent using Southern AG Garden friendly fungicide, however it must be present to block spores form germinating.
 
That's really disappointing. I don't think that's powdery mildew and, even if it were, something else seems to be going on with the leaf spotting and dropping leaves. You could consider removing a branch or two from the center to open up air flow. I sometimes do that with caged plants when the foliage gets too compact. Usual caveat though of being careful about spreading infection on cutting tools when not sure what might be wrong with it.

I don't either.


Powdery mildew is easy to prevent using Southern AG Garden friendly fungicide, however it must be present to block spores form germinating.

Thanks guys. Any leads on what it might be? I'm curious as to whether it might be nutrient related, or over/underwatering (we've had quite a bit of rain lately, but it's also been very hot). We're supposed to get major storms today with 3-4 inches of rain, originally I was going to give it some fish hydrolysate and kelp, but am holding off until after the deluge. Let me know your thoughts?
 
Any leads on what it might be?

might be nutrient related,

You would think with fish & seaweed nutrient problems would be rare.


Have you tried Superthrive? I have been using vitamins on my plants for many seasons with good results.

Based on multiple customer reviews, SUPERthrive The Original Vitamin Solution is reported to help revive and improve the health of sick or distressed plants. Customers have noted that it can bring dying plants back to life, help plants recover from transplant shock, and make gardens lush and healthy. It is also mentioned to be a non-toxic, highly invigorating vitamin supplement suitable for various plants, including house plants and succulents.


 
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