I am ready to harvest but under microscope I find tiny black spots or specks on a number of the trichomes. Two plants, different strains (C99 and Red Purps). They were not there on one of the plants' top when I harvested that top 4 days ago, but the lower plant and neighboring plant have them. Trying to figure out what they are and whether this requires destroying the plants rather than harvesting and using them. Can anyone shed some light on this?