Biology and Biological Control of Knapweed
| 48 Images |
University of Idaho Archive University of Idaho |
in Northern Idaho |
Linda Wilson University of Idaho |
rosette |
Cindy Roche |
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Cindy Roche |
seedhead |
Cindy Roche |
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Cindy Roche |
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Cindy Roche |
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Cindy Roche |
seedhead |
Cindy Roche |
in flower |
Cindy Roche |
seedhead |
Cindy Roche |
in flower |
Cindy Roche |
seedhead |
Cindy Roche |
in flower |
Cindy Roche |
seedhead |
USDA APHIS PPQ Archive USDA APHIS PPQ |
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University of Idaho Archive University of Idaho |
in knapweed |
Biological Control of Weeds in the West Field Guide Western Society of Weed Science |
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University of Idaho Archive University of Idaho |
in seedhead |
USDA APHIS PPQ Archive USDA APHIS PPQ |
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USDA APHIS PPQ Archive USDA APHIS PPQ |
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University of Idaho Archive University of Idaho |
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University of Idaho Archive University of Idaho |
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J. Johnson University of Idaho |
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Nez Perce BioControl Center Archive Nez Perce BioControl Center |
defoliation of knapweed |
Linda Wilson University of Idaho |
emergence hole |
Biological Control: A Guide of Natural Enemies of North America Web Site Cornell University |
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USDA APHIS PPQ Archive USDA APHIS PPQ |
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Nez Perce BioControl Center Archive Nez Perce BioControl Center |
being released on spotted knapweed |
Nez Perce BioControl Center Archive Nez Perce BioControl Center |
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Nez Perce BioControl Center Archive Nez Perce BioControl Center |
at the base of knapweed rosette leaf |
USDA APHIS PPQ Archive USDA APHIS PPQ |
in knapweed root |
USDA APHIS PPQ Archive USDA APHIS PPQ |
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USDA APHIS PPQ Archive USDA APHIS PPQ |
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J. Johnson University of Idaho |
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Biological Control: A Guide of Natural Enemies of North America Web Site Cornell University |
in knapweed root |
University of Idaho Archive University of Idaho |
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Nez Perce BioControl Center Archive Nez Perce BioControl Center |
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University of Idaho Archive University of Idaho |
in a knapweed root |
University of Idaho Archive University of Idaho |
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University of Idaho Archive University of Idaho |
suitable for a biocontrol program |
Karen Loeffelman University of Idaho |
for insects |
University of Idaho Archive University of Idaho |
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University of Idaho Archive University of Idaho |
styrofoam-lined shipping box containing blue ice pack and biocontrol agent cartons |
University of Idaho Archive University of Idaho |
releasing bioagents |
Nez Perce BioControl Center Archive Nez Perce BioControl Center |
screen tent cage in which to release and contain knapweed bioagents |
Sandy Kegley USDA Forest Service |
pheromone trap used to monitor adult male moths |
Nez Perce BioControl Center Archive Nez Perce BioControl Center |
exit holes in spotted knapweed seedheads created by adult weevils |
University of Idaho Archive University of Idaho |
measuring knapweed height at a quantitative monitoring site |
