Sevin would be ok for flowers but I prefer a natural/organic solution for garden veggies. I try to avoid chemical nutrients and chemical insecticides, whenever possible. I got a late start this year but my tomato plants are already 6' tall and still growing. I'm gonna need a ladder to harvest the fruit at the top.
Using BT is a great method for ridding yourself of caterpillars and other leaf eater. I picked up Garden Safe brand at Lowes and it works great. After two applications, I haven't seen any more bugs.http://www.gardensafe.com/Products-and- ... iller.aspx
You could also consider Diatomaceous Earth. It's an all natural product that works well for certain insects. It's also ingested by humans and livestock to kill parasites, like worms. Just don't breath it in or get it in your eyes. It's made from the fossilized remains of diatoms, a type of hard-shelled algae, which acts like razor blades to small insects and cuts them to pieces.http://www.amazon.com/s?ie=UTF8&rh=i%3A ... rth&page=1
I haven't tried hot pepper sprays but I hear they work well too.
Btw, if you want a good organic nutrient to use during flowering and fruiting, try Age Old Bloom. It's some good stuff, with no odor and a balanced PH. http://www.ageoldorganic.com/13/age-old-bloom-5-10-5/