When applying insecticides, timing sprays to coincide with vulnerable life stage of a pest is considered important. True or False?

When applying insecticides, timing sprays to coincide with vulnerable life stage of a pest is considered important. True or False?

• A. True
• B. False
• C. Sometimes
• D. Not sure

Answer: (A)

Focusing insecticide applications on the pest’s most vulnerable life stage yields the best control. Immature stages that are actively feeding are typically easiest to kill and most exposed to the product, so spraying when eggs have hatched or when larvae/nymphs are small often results in higher kill rates per spray. Targeting these stages also reduces the chance that pests continue feeding and causing damage, which can mean fewer applications overall and less chemical use. If sprays happen when pests are in resistant or less exposed stages, control is weaker and damage continues. So the statement is true.

Focusing insecticide applications on the pest’s most vulnerable life stage yields the best control. Immature stages that are actively feeding are typically easiest to kill and most exposed to the product, so spraying when eggs have hatched or when larvae/nymphs are small often results in higher kill rates per spray. Targeting these stages also reduces the chance that pests continue feeding and causing damage, which can mean fewer applications overall and less chemical use. If sprays happen when pests are in resistant or less exposed stages, control is weaker and damage continues. So the statement is true.