An edition of The clover and alfalfa seed chalcis-fly (1920)
The clover and alfalfa seed chalcis-fly
By T. D. Urbahns
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Publish Date
1920
Publisher
U.S. Dept. of Agriculture
Language
eng
Pages
20
Description:
subjects: Chalcid wasps, Alfalfa, Diseases and pests, Clover