Which of the following is an example of a botanical pesticide?

Pyrethrins are derived from the flowers of the chrysanthemum plant, making them a classic example of a botanical pesticide. These natural extracts work by targeting the nervous system of insects, leading to their paralysis and death. Pyrethrins are popular in both agricultural and domestic pest control due to their relative safety for humans and the environment compared to synthetic chemicals. They degrade quickly in sunlight, which reduces their long-term impact on ecosystems. This natural origin is a key characteristic that classifies them as botanical pesticides.

In contrast, the other options consist of synthetic or non-botanical pesticides. DDT is a synthetic compound that was widely used but is now banned in many places due to its environmental persistence and negative health effects. Carbaryl is a synthetic carbamate pesticide, while Borax is a mineral compound used for its insecticidal properties but does not fall under the classification of botanical pesticides. Understanding the origin and chemical structure of these pesticides helps clarify why pyrethrins are categorized specifically as botanical options in pest control strategies.