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Cottonwood Leaf Beetle
 

Cottonwood Leaf Beetle: Host and Damage


USDA Forest Service
Adult margin notching and larval skeletonization
University of Georgia
Severe shoot damage
Forestry Images: Auburn University
Larval skeletonization
HOST:
The preferred hosts of cottonwood leaf beetle are cottonwood (Populus deltoides), other poplars, and some species of willow, particularly basket willow (Salix viminalis).

DAMAGE:
Adults feed on leaf margins and cause shothole damage. Young larvae skeletonize leaves and, as they mature, consume all but the main leaf margins. Severe infestations cause serious defoliation. Defoliation can decrease diameter and height of the trees and increase lateral branching and terminal forking, resulting in decreased biomass available for pulp and bioenergy.
DISTRIBUTION DESCRIPTION HOST AND DAMAGE LIFE CYCLE
MONITORING CHEMICAL CONTROL BIOLOGICAL  CONTROL RESOURCES
RELATED RESEARCH:  UNIVERSITY OF MINNESOTA ENTOMOLOGY LABORATORY,
IOWA STATE UNIVERSITY FOREST ENTOMOLOGY LABORATORY

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Last modified on February 01, 2007