Which practice reduces bee exposure by pesticide residuals?

Which practice reduces bee exposure by pesticide residuals?

• A. Use pesticides with short residual action
• B. Use pesticides with long residual action
• C. Use only microencapsulated formulations
• D. Mix pesticides in open fields

Answer: (A)

Bees are most at risk from residues that linger on flowers, nectar, and pollen after pesticide application. Using products with short residual action means the chemical breaks down more quickly in the environment, so residues decline faster and bees encounter less exposure as they forage. The other choices don’t fit as well: long residual action keeps pesticides active for longer, increasing exposure; microencapsulated formulations don’t automatically guarantee lower residuals and can still leave persistent residues depending on the product; mixing pesticides in open fields tends to spread residues and increase exposure rather than reduce it.

Bees are most at risk from residues that linger on flowers, nectar, and pollen after pesticide application. Using products with short residual action means the chemical breaks down more quickly in the environment, so residues decline faster and bees encounter less exposure as they forage. The other choices don’t fit as well: long residual action keeps pesticides active for longer, increasing exposure; microencapsulated formulations don’t automatically guarantee lower residuals and can still leave persistent residues depending on the product; mixing pesticides in open fields tends to spread residues and increase exposure rather than reduce it.