Which statement about European pine sawfly larvae is true?

Which statement about European pine sawfly larvae is true?

• A. Larvae are grayish green with light and dark green stripes running the length of the body.
• B. Adult resembles thick-bodied wasps.
• C. Target insecticides at adult stage.
• D. Insecticidal soap is effective for adults.

Answer: (A)

European pine sawfly larvae are the feeding stage that defoliates pines, and their appearance helps you recognize them for proper timing of control. They are grayish green with light and dark green stripes running the length of the body, a distinctive pattern that sets them apart from other pine pests. Since the damage is caused by larvae chewing on needles, management is most effective when targeting this stage during feeding. Adults, which resemble wasps, are not the stage doing the damage, and insecticidal soap is not reliably effective on adults. So the accurate description is the larval color and longitudinal striping.

European pine sawfly larvae are the feeding stage that defoliates pines, and their appearance helps you recognize them for proper timing of control. They are grayish green with light and dark green stripes running the length of the body, a distinctive pattern that sets them apart from other pine pests. Since the damage is caused by larvae chewing on needles, management is most effective when targeting this stage during feeding. Adults, which resemble wasps, are not the stage doing the damage, and insecticidal soap is not reliably effective on adults. So the accurate description is the larval color and longitudinal striping.