Which of the following types of agricultural chemicals are NOT pesticides?

Fertilizers are considered agricultural inputs but are not classified as pesticides. Pesticides are substances designed to prevent, destroy, repel, or mitigate pests, such as insects, weeds, and diseases. Herbicides, insecticides, and fungicides all fall under the pesticide category because they are specifically formulated to target harmful organisms in the agricultural setting: herbicides control weeds, insecticides manage insect populations, and fungicides combat fungal infections.

Fertilizers, on the other hand, are used to enhance plant growth by providing essential nutrients but do not have direct effects on pests. Understanding this distinction is important for effective pest management and compliance with agricultural regulations, as it helps farmers and applicators choose the appropriate products for their specific needs.