Curious about half life of Azamax soil drench

Day 36 prob gonna pull day 65, found one web string on 2 plants at the top of the plant (assuming one rode me into the fan or I bumped the plant) but I can’t for the life of me find any of them under the scope so I’m assuming it’s a few of them I’m hunting to kill before reproducing. Does 1ml/gal of Azamax leave in 10-14 days? I’m aware we shouldn’t spray the product at any flowering stage but last time is used til day 28 and flushed no problem. Lmk what your thoughts are

Also planning a plant therapy rub down on the plant leaves and discard after to try and stop an infestation on the bud sites.