Hello been having this problem here and there from about the 2nd week of being planted outdoors(june 10th) but seems to be getting worse and not sure what it is. Plants are WW photo fem(4 of them) in soil(equal part mix) a mix of promix, soil from old pig/horse yard, and a 1-1-1compost in about 100gal plots, gave them 20-8-8 slow release 1st week june and 8-20-20 slow release first of august(about 1/2cup each for each plant), water ph is roughly 6.3-6.8, bugs around that i have seen are slugs, grasshoppers, and about a week ago some aphids but very few, and regular outdoor bugs you usually see in the country. Haven't watered much as moisture meter is usually always to the moist/wet side of things but never feels wet a few inches down. Could this be root rot? I have a 80x i looked over plants pretty good and didnt see any mites or anything like that. Other than those tops(there are more that the attached pic) the plants seem to look ok, plants look happy in morning and thru the day and sleepy at night. Anyone know what is the cause of this? Any help or info would be great, thanks