Which statement best defines biorational methods?

Which statement best defines biorational methods?

• A. Use of mosquito pathogens, predators and parasites to reduce the population.
• B. Gambusia is the only true example.
• C. Bti and Bs are bacteria but are included in the chemical control.
• D. Chemical pesticides are the primary option.

Answer: (A)

Biorational methods rely on natural biological agents to suppress mosquito populations with minimal environmental disruption. The statement that best defines this approach describes using mosquito pathogens, predators and parasites to reduce the population, which captures the full range of biocontrol tools that come from living organisms and are aimed at mosquitoes. Gambusia is just one example of a predator; saying it’s the only true example ignores many other predators and pathogens that can be used. Bti and Bs are microbial agents used to target larvae; they’re not conventional chemical pesticides, so grouping them with chemical control isn’t accurate. And chemical pesticides overall are not the primary option when applying biorational strategies, which prioritize natural or biologically derived tools.

Biorational methods rely on natural biological agents to suppress mosquito populations with minimal environmental disruption. The statement that best defines this approach describes using mosquito pathogens, predators and parasites to reduce the population, which captures the full range of biocontrol tools that come from living organisms and are aimed at mosquitoes. Gambusia is just one example of a predator; saying it’s the only true example ignores many other predators and pathogens that can be used. Bti and Bs are microbial agents used to target larvae; they’re not conventional chemical pesticides, so grouping them with chemical control isn’t accurate. And chemical pesticides overall are not the primary option when applying biorational strategies, which prioritize natural or biologically derived tools.