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Christmas trees -- Diseases and pests -- Control -- Oregon
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The biology and control of the Douglas-fir needle midge in Christmas trees
Biology and control of Douglas-fir needle midge in Christmas trees
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Creator
Deangelis, Jack D.
2
Oregon State University. Extension Service
2
Simko, B. C. (Ben C.)
1
West, Kenneth John
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Date
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1991
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1994
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Decade
1990-1999
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Language
English [eng]
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Oregon State University. Extension Service
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Other
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Technical Report
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Copyright Not Evaluated
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Subject
Christmas trees -- Diseases and pests -- Control -- Oregon
[remove]
2
Contarinia -- Control -- Oregon
2