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leafy spurge biological control


17 Images
3970064
Montana State University Archive
Montana State University

(a) flowering stems, (b) dense patch

3970065
USDA Agricultural Research Service Archive
USDA Agricultural Research Service

rangeland severly infested

3970066
USDA Agricultural Research Service Archive
USDA Agricultural Research Service

3970067
USDA Agricultural Research Service Archive
USDA Agricultural Research Service

3970068
USDA APHIS PPQ Archive
USDA APHIS PPQ

3970069
USDA APHIS PPQ Archive
USDA APHIS PPQ

3970070
USDA APHIS PPQ Archive
USDA APHIS PPQ

3970071
USDA APHIS PPQ Archive
USDA APHIS PPQ

3970072
USDA APHIS PPQ Archive
USDA APHIS PPQ

3970073
USDA APHIS PPQ Archive
USDA APHIS PPQ

3970074
USDA APHIS PPQ Archive
USDA APHIS PPQ

3970075
USDA APHIS PPQ Archive
USDA APHIS PPQ

3970076
USDA APHIS PPQ Archive
USDA APHIS PPQ

3970077
USDA APHIS PPQ Archive
USDA APHIS PPQ

3970078
USDA APHIS PPQ Archive
USDA APHIS PPQ

(a) adult (b) gall made by midge larva (inset)

3970079
USDA Agricultural Research Service Archive
USDA Agricultural Research Service

Leafy spurge infestation on the N-Bar Ranch, Grass Range, Montana, prior to release of the beetle that same year

3970080
USDA Agricultural Research Service Archive
USDA Agricultural Research Service

N-Bar Ranch, Grass Range, Montana, four years after release of beetle