Which would be a correct way to manage eastern tent caterpillars?

Which would be a correct way to manage eastern tent caterpillars?

• A. Apply systemic insecticides to the soil
• B. Remove their tents
• C. Target pesticide applications toward adults
• D. Hand-pick caterpillars

Answer: (B)

Eastern tent caterpillars live in silken tents on tree branches, so the most effective non-chemical approach is to remove those tents and destroy the caterpillars inside. Taking down the tents disrupts the colony, exposes the caterpillars to sun, heat, and predators, and reduces leaf feeding right away. It’s a targeted, low-impact method that limits environmental concerns and doesn’t rely on spraying in the canopy. Hand-picking can help on small trees but is labor-intensive and less practical for larger infestations. Spraying soil-applied systemic insecticides won’t reach the caterpillars hiding in the tents and can affect non-target organisms, and targeting adults won’t stop the caterpillars that are already established in the tents. Removing the tents addresses the infestation where it actually is.

Eastern tent caterpillars live in silken tents on tree branches, so the most effective non-chemical approach is to remove those tents and destroy the caterpillars inside. Taking down the tents disrupts the colony, exposes the caterpillars to sun, heat, and predators, and reduces leaf feeding right away. It’s a targeted, low-impact method that limits environmental concerns and doesn’t rely on spraying in the canopy. Hand-picking can help on small trees but is labor-intensive and less practical for larger infestations. Spraying soil-applied systemic insecticides won’t reach the caterpillars hiding in the tents and can affect non-target organisms, and targeting adults won’t stop the caterpillars that are already established in the tents. Removing the tents addresses the infestation where it actually is.