How many summers can 'May beetle' white grubs feed on turf-grass before they become adults?

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Multiple Choice

How many summers can 'May beetle' white grubs feed on turf-grass before they become adults?

Explanation:
White grubs like those of the May beetle develop over multiple years, not in a single season. After eggs hatch, the larvae spend several summers feeding on turf grass roots, with each summer extending their growth stages and overwintering between them. By the end of the third summer of feeding, they have reached full development and then pupate to become adults. So, three summers of feeding before emergence is the typical pattern, which is why three is the best answer.

White grubs like those of the May beetle develop over multiple years, not in a single season. After eggs hatch, the larvae spend several summers feeding on turf grass roots, with each summer extending their growth stages and overwintering between them. By the end of the third summer of feeding, they have reached full development and then pupate to become adults. So, three summers of feeding before emergence is the typical pattern, which is why three is the best answer.

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