What type of pesticides is used to control spiders?

The correct classification for pesticides used to control spiders is acaracide. Acaracides are specifically formulated to target arachnids, which include not only spiders but also mites and ticks. This is important because spiders, being arachnids, require different chemical formulations compared to insects.

Using an insecticide, for example, would not be effective against spiders, as these products are designed to combat insects specifically, which belong to a different class of arthropods. Similarly, miticides focus primarily on controlling mite populations and may not be effective against more robust arachnids like spiders. Nematicides are targeted at nematodes, a completely different group of pests that affect plants. Thus, acaricides are the most appropriate choice for specifically managing spider populations, making it essential for pest control professionals to understand the correct classification of pesticides for effective application.