I have been observing brown and yellow spots on my mint leaves. One of my mints is very thick and I noticed the spots first on leaves which were not getting any sun and as a result were almost permanently damp. I cut back the plant so that more of it would be exposed to sun but that did not make a difference.
Recently I noticed that almost all of my mint plants have these spots especially on their lower leaves. It must be noted that it has been rain almost everyday and every night for at least the last week. As a result the plants are moist almost indefinitely.
From my research on line it seems that I have a fungal infestation but I'm not sure. Please see the attached pictures.
Please let me know what you think. If it is an infection what is the best way to treat it?
Thanks in advance.