Which type of pesticide would be used to tackle issues with undesirable plants?

Herbicides are specifically formulated to target and control undesirable plants, such as weeds. These chemicals work by disrupting various physiological processes within the plants, ultimately leading to their death while minimizing harm to desirable plants and crops. This makes herbicides the go-to solution for managing unwanted vegetation in agricultural settings.

The other types of pesticides mentioned serve different purposes: Bactericides focus on eliminating harmful bacteria, molluscicides target snails and slugs, and rodenticides are designed to control rodent populations. None of these would be effective in managing plant issues, highlighting that herbicides are the appropriate choice for addressing problems with undesirable plants.