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Leaf spot on one variety (Pimento)

With the warm weather returning, I guess so do the problems.  My pimento plants are flowering prolifically, but I am seeing a leaf rot along the edges on several plants.  I am transitioning these to bottom-tray watering so not a to over-water them, and I did mix some Black Cow into the Miracle Grow soil I use, on the last transplant.  There is also some leaf deformation/curl, so I am ondering if this is a bit of over-watering from top down plus a fungus of sorts?  Other than better controlling the watering, any solutions to the leaf spot?
 
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I'm not an expert, but that does seem like it could indeed be a virus or fungal infection. You're quite right to quarantine it as if it is a virus/fungal infection, it could well be contagious. It doesn't look like fertilizer burn as that usually affects the tips and edges first. I would definitely snip off any leaves with brown patches and monitor the plant every day.
 
Have you applied a fungicide?
 
Oh yeah, what do the underside of the leaves look like? Are they green or a darker colour? Any brown patches? Any fine webbing?
 
To me it looks like the leaves were wet and then exposed to high intensity light which scalded and burned them. Usually if it's a spot or blight it will form circles that eventually grow together and form larger misshapen lesions. But they are usually darker colored. There also appears to be "deformed" growth resulting at the discolored spot. In general when a leaf is infected it's growth is inhibited. This appears to continue grow around or despite the damaged tissues. Which leads me to believe it was physical damage.
My advice, leave it quarantined if you want, make sure the leaves don't get wet or abused and monitor new growth for signs of infection.
 
Thanks.  I have moved them away from the other varieties.  The weather spiked into the mid 80's in the last couple of days.  I am wondering it these are just super sensitive to that temperature swing.  No critters or mold or webbing (yet).  I have some resident ladybugs camped out for that.
 
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