Which steps are involved in vector control following floods or periods of standing water?

• A. Eliminate standing water; implement larviciding with approved agents; conduct public education on breeding-site elimination; perform targeted adulticiding if appropriate and approved.
• B. Only use pesticides in all areas regardless of approvals.
• C. Do nothing and wait for mosquitoes.
• D. Use only mechanical traps.

Answer: (A)

After floods or periods of standing water, the best approach targets mosquitoes at all life stages while using regulated methods. The main idea is integrated vector management: first, eliminate as much standing water as possible to remove breeding sites. When water remains, apply larvicides with approved products to kill larvae before they become adults. Engage the community with public education so households and neighborhoods can remove containers and tip out water that could become new breeding grounds. If surveillance shows a need and the products are approved, perform targeted adulticiding to quickly reduce the adult mosquito population in areas of ongoing risk. This combination addresses the problem comprehensively and within regulatory guidelines.

Other approaches fall short because they ignore the need for habitat reduction, rely on unapproved or indiscriminate pesticide use, or focus on a single tactic that’s unlikely to control both immature and adult mosquitoes.