Any substance used to control or repel a pest, or to reduce the harmful effects of a pest is known as a

Any substance used to control or repel a pest, or to reduce the harmful effects of a pest is known as a

• A. Pesticide
• B. Nematicide
• C. Monitoring
• D. Leaching

Answer: (A)

A pesticide is the term that fits this description. It covers any substance used to control, repel, or lessen the harm caused by pests, across different kinds of pests—whether insects, weeds, fungi, or nematodes. That broad scope is why it’s the best answer: it includes insecticides, herbicides, fungicides, and nematicides, all under one umbrella. Nematicide refers specifically to products that target nematodes, so it’s narrower than the general idea. Monitoring is about observing pest levels and does not involve applying a substance. Leaching describes how chemicals move through soil with water, which is a soil and water behavior, not a definition of a pest-control product.

A pesticide is the term that fits this description. It covers any substance used to control, repel, or lessen the harm caused by pests, across different kinds of pests—whether insects, weeds, fungi, or nematodes. That broad scope is why it’s the best answer: it includes insecticides, herbicides, fungicides, and nematicides, all under one umbrella.

Nematicide refers specifically to products that target nematodes, so it’s narrower than the general idea. Monitoring is about observing pest levels and does not involve applying a substance. Leaching describes how chemicals move through soil with water, which is a soil and water behavior, not a definition of a pest-control product.