What should be applied to sod webworms for control?

What should be applied to sod webworms for control?

• A. A detergent or pyrethroid insecticide mixture
• B. A fungicide
• C. A fertilizer-only treatment
• D. A systemic nematicide

Answer: (A)

Sod webworms are caterpillars feeding on turf, so controlling them requires an insecticidal approach that targets leaf-chewing larvae. A detergent spray acts as a contact killer: when sprayed across the turf, it disrupts the caterpillars’ protective coating and causes them to die on contact, especially effective on exposed larvae. A labeled pyrethroid insecticide provides rapid knockdown by disrupting nerve function in the insects, offering effective suppression when applied as a thorough spray to the damaged area. Both options focus on eliminating the pests you’re seeing, rather than trying to treat the lawn with fungi, nutrients, or nematodes. Fungicides won’t affect insects, fertilizer-only treatments won’t control the larvae, and systemic nematicides target nematodes, not caterpillars. That’s why a detergent solution or a pyrethroid insecticide spray is the appropriate choice for sod webworm control.

Sod webworms are caterpillars feeding on turf, so controlling them requires an insecticidal approach that targets leaf-chewing larvae. A detergent spray acts as a contact killer: when sprayed across the turf, it disrupts the caterpillars’ protective coating and causes them to die on contact, especially effective on exposed larvae. A labeled pyrethroid insecticide provides rapid knockdown by disrupting nerve function in the insects, offering effective suppression when applied as a thorough spray to the damaged area. Both options focus on eliminating the pests you’re seeing, rather than trying to treat the lawn with fungi, nutrients, or nematodes.

Fungicides won’t affect insects, fertilizer-only treatments won’t control the larvae, and systemic nematicides target nematodes, not caterpillars. That’s why a detergent solution or a pyrethroid insecticide spray is the appropriate choice for sod webworm control.