What do locusts do to crops?
Similarly, you may ask, how do you protect crops from locusts? Choose your plant friends! Grasshoppers like to eat marigolds so they leave your crops alone. Also, when the grasshoppers are eating the marigolds, you can spray them with an insecticide, preferably a natural one. Marigolds also repel other insect pests, including nematodes and whiteflies.