Need some advice

Hi I am growing outdoors in the jungle in Central America and there is every insect known to man on my land both good and bad for cannabis, just entered 3rd week of flower and so far so good. I know Azamax is not the top choice for preventative insect control especially in living soil but it's the only 'organic' option I can get in my area, ordering an alternative online is not an option either unfortunately. I've read some things that contradict it's organic certification and even though it says on the bottle use all the way up to harvest there is no way I would want to smoke that shit. So my question is if I give one last spray at week three am I at risk of leaving residue on the flowers or possibly affecting the terpenes?? I have been using some of my home made chilli mango vinegar at 1:1000 plus some L.A.B as a preventative foilar too in between Azamax treatments which seems to work great. What do you think?
Two examples of good and bad insects/lobsters in my area