Bugs Tearing Our Garden?

I have been weeding and found grubs in our garden and flower bed. Some type of caterpillars are on our vegi's. Moths flying around. There is some tiny parasite looking pink things in our tomatoes. We are trying to keep it as organic as possible. Also we ordered two piles of compost with cow wastes, clippings, and molch. Maybe that contained lots of acid and bugs stuff like that. So what can we do to save our garden by being organic? Help me pleaz!