Beetle larvae threaten North Carolina blueberry roots, scientists identify pest
North Carolina researchers identified Prionus imbricornus larvae as the cause of damage to blueberry roots, aiding efforts to protect crops.
Blueberry growers in North Carolina face a new threat from the larvae of a longhorn beetle species, Prionus imbricornus, which feed underground on plant roots and can kill blueberry bushes. These larvae can grow up to five inches long, while adult beetles do not feed.
The female beetles lay eggs near hardwood tree roots, and the larvae damage roots after hatching. This is the first time P. imbricornus has been documented feeding on blueberry bushes in North Carolina, although similar damage has been reported since 2010.
Identifying the exact beetle species was challenging due to the larvae's underground habitat and similarities between species. Researchers from North Carolina State University used pheromone traps at several blueberry farms to confirm the pest species.
Understanding the specific beetle involved is crucial for developing effective pest control strategies, as different species affect plants differently. This discovery marks an important step toward protecting blueberry crops from this destructive pest.
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