Tip619, you in 619? I lived in Escondido for a year and a half, loved socal south of LA, LOL.... anyway I read most of what you got here, and reading between the lines I would say most all the input the guys have given are spot on. You have to be vigilant and quick about hermies and pests. Adding "any" pesticides or nutes must be done very ,very slowly. Mix in a 5 gal and add over a few hours. Fight the urges to make daily ph adjustments because 6.0-6.1 adjustments can do more harm than good. Specifically to the roots. Easiest to do, is a simple topoff bucket, and feed thru that. You may have overfed, or the pesticide, could have been too strong causing root stress, take some photos of your roots for us, be careful lifting the plants, my personal experience was it caused me root stress looking at em every day 4 times a day. haha
I found weekly ph adjustments and feeding are less stressful. Put together a weekly feed schedule and follow it closely, making bi weekly adjustments if the plants tell you too. Load your food and schedule concept here, and let the farmers help guide you. IMO
Only take advice from other Uc growers here that have a thread and photos to back it. Not bashing but the proof is in the log! Keep it all very simple, and all ur homies will be pissed you smoked em with the numbers and quality! support those tops well. As to your question you asked me, its hard to know because the pics are so/so. I would think the bugs and adjustments are the issue. Let the ph be ur guide. if it raises, add a little food if it goes down add a little water... weekly of course
all in my opinion man...
h400