A good regular foliar spray can keep the bugs from your veggies, especially tomatoes and peppers.
Use Garrett juice with garlic and hot pepper or just compost tea, molasses and garlic. They don't like the taste and the spray boosts the immune system of the plant.
If you don't want to mix your own spray, get some Garrett Juice, Bioform liquid or compost tea and molasses and add a clove of crushed garlic or garlic oil and spray it on your plants. Do it in the early morning or evening after direct sun is over. It'll perk 'em up quickly.
And put some cornmeal in the ground around your veggies. It makes them so much healthier!
Hope that helps!