I saw a squash bug in the zucchini. I dropped an atom-bomb on the garden. There is no way that squash bug is going to have a chance to eat my zukes or make babies, now.
I have to admit, I used Sevin, but I finished off the bottle and will go back to organic gardening now. I felt I needed to get back down to a base-line after I did so many things wrong the past few years, which attracted the pests. I've been using Sevin about once a week, maybe a little less, but now I'm done. Garlic-Cayenne soap shield once a week, from now on. I truly hope I don't have to use any more atom bombs.
I read in Organic Gardening magazine to use clover as a ground cover because it fixes nitrogen in the soil. I would recommend using that tactic for transplants, but not seeds. It's been really nice for my transplants because I only have to weed a nightshade here and a thistle there, but I had to clear out the rows for my seeds because the clover is a little too tall.
Another nice thing is the clover is really easy to pull, so if I need to clear a spot, no biggie. The clover that grows wild around here is the lemon clover, so I'm "harvesting" it a little, too, for salads. : )
My husband HATES the fact that the garden doesn't "look" weeded. Oh, well.