Please if you know what this is let me know ASAP. The leaves got spots from the bottom fan leaves it crawled up to the tops.
I had gnats weeks ago but I got rid of them. I poured 2 mixtures on the roots over the next 2 weeks and they went away
1) .09% Neem oil
2) amonia thinned in water
I sprayed the leaves with alcohol and water also with garlic and water; very strong. Gnats are gone now.
I looked there are no spider mites (tiny red critters) or any visible bugs; it's an indoor grow and CO has few bugs.
Any ideas? Is this a mold? The back of the leaves have like gray dusty look on the spots where the top of the leaf has a brown spot. Looks like amold to me, but I'm new at this.
Thanks brothas and sistas!
Squash, aka Matt