Prevention/Mechanical Barriers for pest management include which of the following?

Prevention/Mechanical Barriers for pest management include which of the following?

• A. Barriers such as screens, netting, and protective clothing all are mechanical means to protect people from biting insects. Good construction and barriers also keep pest animals out of structures.
• B. Chemical pesticides are the only barrier.
• C. Barriers attract pests into structures.
• D. Barriers have no protective value.

Answer: (A)

Mechanical barriers block pests by physical means, keeping them away from people and spaces without using chemicals. Screens and netting prevent entry of mosquitoes and other biting insects, while protective clothing reduces skin exposure when outdoors. When these barriers are well designed and properly installed, they also help keep pests out of structures by closing gaps and sealing openings. This is why they’re considered prevention—they reduce contact with pests through physical exclusion. The other statements aren’t correct because chemical pesticides are not the sole barrier, barriers don’t attract pests, and barriers do have protective value.

Mechanical barriers block pests by physical means, keeping them away from people and spaces without using chemicals. Screens and netting prevent entry of mosquitoes and other biting insects, while protective clothing reduces skin exposure when outdoors. When these barriers are well designed and properly installed, they also help keep pests out of structures by closing gaps and sealing openings. This is why they’re considered prevention—they reduce contact with pests through physical exclusion. The other statements aren’t correct because chemical pesticides are not the sole barrier, barriers don’t attract pests, and barriers do have protective value.