 If you have aphids, white flies, or plant bugs in your crop, products like Transform or Safina may be the answer. If alfalfa weevil larvae, armyworm, corn earworms, grasshoppers, or adult corn rootworm beetles are a challenge for you, steward insecticide is an excellent choice. If you're trying to control grasshoppers only, especially early in the season, dimmelin is fantastic.