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ARS Home » Pacific West Area » Corvallis, Oregon » Horticultural Crops Research Unit » Research » Publications at this Location » Publication #266333
Title: Black Vine and Other Weevils

Author
item Bruck, Denny

Submitted to: Compendium
Publication Type: Other
Publication Acceptance Date: 9/6/2011
Publication Date: N/A
Citation: N/A

Interpretive Summary: The black vine and other weevils are severe pests of field and container-grown rhododendron and azalea. In order to manage these pests effectively, growers must have a firm understanding of their life cycle and behavior. Current weevil management options include 1) host plant resistance, 2) conventional insecticides targeted against adults, 3) conventional insecticides targeted against larvae, 4) exclusion and 5) biological control agents targeted against larvae. Implementation of multiple strategies targeting adults and larvae will provide the greatest levels of control.

Technical Abstract: Otiorhynchus sulcatus and other members of the genus are severe pests of field and container-grown rhododendron and azalea. In order to manage these pests effectively, growers must have a firm understanding of their life cycle and behavior. Proper identification of the pest complex present at the nursery is also critical in order to properly time management strategies. Current weevil management options include 1) host plant resistance, 2) conventional insecticides targeted against adults, 3) conventional insecticides targeted against larvae, 4) exclusion and 5) biological control agents targeted against larvae. Implementation of multiple strategies targeting adults and larvae will provide the greatest levels of control.