What are the two main categories of pesticides?

The two main categories of pesticides are generally considered to be insecticides, which target insects, and herbicides, which target unwanted plants or weeds. Insecticides are used to manage pests that can cause significant damage to crops, while herbicides are essential in agricultural practices to control or eliminate unwanted vegetation that competes with crops for nutrients, water, and sunlight.

While other options include specific types of pesticides like fungicides (which control fungi) and miticides (which target mites), they fall under broader categories rather than being categorized as the two main pesticide types. Insect growth regulators are a specific type of insecticide that alters the development of insects and thus does not encompass the general categories of pesticides. Therefore, the choice highlighting insecticides and herbicides stands out as the most accurate representation of the primary categories of pesticides used in agricultural and pest management practices.