Which category does not fall under the typical types of pesticides?

Chemical fertilizers do not fall under the typical categories of pesticides because they serve a different function within agriculture and forestry. Pesticides are specifically formulated to manage pests, which can include weeds, insects, and diseases that negatively impact plant health and productivity.

Herbicides target unwanted plants (weeds), insecticides are designed to eliminate harmful insects, and fungicides combat fungal infections that can threaten plant stability and growth. In contrast, chemical fertilizers are used to provide essential nutrients to plants, promoting healthy growth rather than controlling pest populations. This distinction is significant because it highlights the purpose of each type of substance in agriculture and forestry practices.