The more healthy your plants, the better they are able to withstand bug attacks. Plants can withstand a small amount of bugs - so keep an eye out, but don't get worried by a little damage.
Some good bugs: wasps, ground beetles, dragonflies. Attract the good ones by plants a variety of flowers and herbs in the garden. If every plots has some flowers, everyone will benefit!
- leaf miner: spinach, beets, chard, etc. Leaves turn brown.