Which term is described as gases that kill when inhaled or absorbed by pests?

Which term is described as gases that kill when inhaled or absorbed by pests?

• A. Fumigants
• B. Attractant
• C. Pheromones
• D. Nonselective

Answer: (A)

Gases that kill when inhaled or absorbed by pests are fumigants. These are volatile toxic compounds that spread through air, cracks, and voids to reach pests hidden in wood, soil, grain, or other enclosed spaces. By entering the pest’s body, they disrupt essential metabolic processes and cause death, making them effective for treating areas where surface-contact pesticides can’t reach. This is different from attractants, which lure pests, and pheromones, which are chemical signals for communication. Nonselective describes pesticides that affect many organisms, but it doesn’t specify the gas form or how they kill; fumigants specifically refer to gases that kill when inhaled or absorbed.

Gases that kill when inhaled or absorbed by pests are fumigants. These are volatile toxic compounds that spread through air, cracks, and voids to reach pests hidden in wood, soil, grain, or other enclosed spaces. By entering the pest’s body, they disrupt essential metabolic processes and cause death, making them effective for treating areas where surface-contact pesticides can’t reach. This is different from attractants, which lure pests, and pheromones, which are chemical signals for communication. Nonselective describes pesticides that affect many organisms, but it doesn’t specify the gas form or how they kill; fumigants specifically refer to gases that kill when inhaled or absorbed.