Swarm Behavior - A single ant or bee isn't smart, but their colonies are. The study of swarm intelligence is providing insights that can help humans manage complex systems, from truck routing to military robots.
The best thing to use to kill Grasshoppers is called Nolo bait. This contains Paranosema (Nosema) locustae spores sprayed on wheat bran. This product is extremely safe to use and is considered organic so can be used in organic agriculture.