I have a vegetable garden that is doing amazing, its growing crazy, maybe because of the compost. I see a lot of tomatoes, 2 were red and rotten, lots of green ones, the cucumber is all over the place but still don't see cucumber, a few watermelon and cantelope growing and a couple of peppers are doing great. But I am concerned that I have an insect problem and I haven't fertilize, I am surprised no cucumbers since last year I had lots. My question is do I fertilize first or spray insecticide first, details pls. thank you.