ouvrage

How to manage the blue orchard bee

J. Bosch ; USDA United States Department of Agriculture, Logan UT (USA). Agricultural Research Service. Bee Biology and Systematics Laboratory ; W. Kemp | Beltsville [USA] : USDA, Sustainable Agriculture Network | 2001

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congrès/colloque

Non-Apis bees and their role as crop pollinators. Program and abstracts

USDA United States Department of Agriculture, Logan UT (USA). Agricultural Research Service. Bee Biology and Systematics Laboratory ; International Workshop (1992/08/10-13; Logan Utah, USA) | Logan Utah [USA] : USDA, ARS Agricultural Research Service | 1992

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