Your landscape hosts a diverse, mini food chain of insects and other tiny life forms. Some survive by eating your prized plantings. But many others help you by eating the "bad bugs" - and some do no harm. Learn which bugs to keep and which ones to control with this updated version of a favorite ID deck. Each colorful photo is clearly marked HELPFUL, HARMFUL, or HARMLESS to remove the guesswork. Fresh information, new photos, and a convenient new format complete this exciting revision of Helpful or Harmful.