Sorry if this is the wrong community or is redundant...
I'm looking for leads as to what's happening to plants in my greenhouse window. It started with my basils. Before I noticed, it spread to my mints. The leaves show these yellow spots, then they turn brown and die. Eventually the entire plant dies.
Any clues as to what I can do to treat/prevent this?
Yikes! Thanks for that lead. A search on that confirms what I‘m seeing, and explains why my Amaranth has been stunted. This is going to be a challenge to control.