> The point of an insecticide is to kill the specific insect being a pest to the crop. Even this can cause a collapse by removing a food source from other pred

> The point of an insecticide is to kill the specific insect being a pest to the crop. Even this can cause a collapse by removing a food source from other predators. > I can save you the time. There will be no world. This is true. Insects are food for a huge number of predators, and insect larvae are a really important component of having soil capable of growing plants.