What is a pesticide that is absorbed in one part of a plant or animal and transported to another part where it kills a pest called?

A pesticide that is absorbed in one part of a plant or animal and then transported to another part where it exerts its lethal effects on pests is referred to as a systemic pesticide. Systemic pesticides are designed to move throughout the plant or animal's tissues, allowing for effective pest control even in areas where the pest may not be directly contacted. This characteristic makes systemic pesticides especially useful for targeting pests that feed internally or those that are hidden from direct application.

In contrast, contact pesticides act on the pests only at the site of application and do not move within the host organism. Residual pesticides remain active on surfaces after application, providing lasting protection against pests that come into contact with them. Local pesticides would typically refer to those that have limited movement and effectiveness in a specific area. Understanding the distinctions among these types of pesticides helps inform effective pest management strategies.