Rhododendron Root Weevils - Knowledgebase Question

Albany, Or
Question by buhl4839
April 18, 2009
wHAT SHOULD i USE TO CONTROL WEAVIL NOTCHES ON MY RHODODENDRON?


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Answer from NGA
April 18, 2009

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These critters live in the soil during the day and the adults feed on the leaves at night. They crawl up the stems of the plant and make notches around the leaf edges when they feed. The larvae feed on roots. If the infestation is great, a lot of damage can be done to the plant. Hand pick the critters, or put a barrier of 'Tanglefoot' at the base of your plant. Just place a cardboard or paper strip around the stem of the plant and smear it with Tanglefoot. Any weevils attempting to crawl up the stem will become hopelessly stuck in the trap.

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