Views, Ag. Experiment Station, Corvallis, MT.
Photos from the 1-day seminar:
Replicate The Whitehall Project, Victor, MT 4-10-05. Photos by
Experiment Station, Corvallis, MT
Class listening to Jim Story talk all about how to mass rear the
knapweed root boring weevils Cyphocleonus achates
in insectaries. Note the old cage frames in the background.
These were for the root boring moth Agapeta zoegana
These moths are now established throughout the Bitterroot Valley but do
not seem to have the impact that the Cyphocleonus
weevils do. Therefore, the focus of the operation has shifted to
weevils which do not fly and need to be reared and released in large
numbers through out the State.
The Ag. Exp. Station produces about 30,000 weevils a year!
Note the staking to hold the flashing (insect corral) in place.
The tall fence posts are for the bird netting. The angled cover
is for shade so reflected sunlight does not "cook" the weevils on very
hot summer days.
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