What characteristic does a botanical pesticide possess?

A botanical pesticide is defined by its origin, specifically that it is derived from naturally occurring plant substances. This means that the active ingredients are sourced from elements found in plants, such as oils, extracts, and other compounds known for their pest-repellent or pest-controlling properties.

The use of botanical pesticides is often associated with an environmentally friendly approach to pest management as they can break down more easily in nature compared to synthetic pesticides. This characteristic also supports sustainable agricultural practices by reducing chemical residues in the environment and on crops.

On the other hand, synthetic pesticides are man-made and do not fit the definition of a botanical pesticide, which is why the first option is incorrect. The strength or potency of a pesticide isn't inherently linked to whether it is botanical or synthetic, making the idea of botanical pesticides as the most potent misleading. Additionally, botanical pesticides do not exclusively target rodents; they can affect a variety of pests including insects and weeds, which clarifies why the last option is also incorrect. Thus, the defining feature of a botanical pesticide being derived from plant substances is what makes the correct answer clear.