What's the old saying -- the best fertilizer is a farmers footprint?? I think if you garden organically, you have to spend a lot of time in your garden. I spend a lot of time hand picking caterpillars and snails off of my plants. I just go along with a little bowl and pick them off and then feed them to the chickens. The chicks love tomato worms and cutworms but will not touch a fuzzy caterpillar for some reason. I also use a LOT of Diatomaceous Earth and garlic & red pepper spray. I grow my cucumbers, cantaloupes and watermelons vertically on a fence and keeping them off the ground seems to help (at least as far as the snails, slugs & pillbugs are concerned). I grow a lot of nasturtiums, marigolds and herbs around the edge of the garden which repel some kinds of bugs. As a last resort, I spray with Spinosad which is a beneficial bacteria that kills caterpillars. It is classified organic but since I am not a chemist I have to take their word for it.
Squash vine borers are the bane of my life. The first few years we were here, I would plant 20 squash plants and maybe get enough squash for a few meals. I have been spraying with Steinernema (beneficial nematodes) every year now for several years and although it has improved a lot it is still a struggle to raise squash. Now the squash vine borers only get half my crop instead of all of it. The steinernema nematodes help with cutworms which were a problem for me too.
I want to be as self sufficient as possible but thank goodness we have a pretty good little farmers market in town because sometimes things just don't work out. My first few years of trying to grow squash here is a good example. We either had to buy squash from another local farmer or do without it completely. Last year, we had a bumper crop of tomatoes - I think my daughter and I canned 280 pints of tomatoes and probably froze that much as well which was a good thing because this year it was too wet and tomatoes did not do well at all. This year, we were overrun with okra and cucumbers. I think even the chickens got tired of the cukes.
Sometimes it is just a matter of trial & error until you find what works for your particular patch of ground. In our previous home I had a very small garden with a huge rabbit problem. This patch of dirt seems to be infested with cutworms and squash vine borers. It will take some time to find the balance and what works best here. I just keep adding compost, the better my soil gets the fewer my bug problems seem to be.
I noticed that you are in Florida so you have different soil but probably deal with a lot of the same bug problems we have here in Texas. The unfortunate side effect of a year long growing season with few freezes is year long bugs. I guess that beats having 6 months of winter. One of my sisters is in Wyoming and they have snow already. Hope this helps you with your garden - just keep trying until you find what works for your particular patch of ground. Good luck!!