TY  - BK
AU  - Johnson,G.D.
TI  - Russian Wheat Aphid Workshop, 4; Bozeman, Montana; 10-12 Oct 1990. Proceedings
U1  - 632.6 
PY  - 1990///
CY  - Bozeman, MT (USA)
PB  - Montana State University, 
KW  - Aphids
KW  - Biological control
KW  - Breeding
KW  - AGROVOC
KW  - Chemical control
KW  - Economics
KW  - Insecticides
KW  - Pest control
KW  - Pest resistance
KW  - Pests of plants
KW  - Plant developmental stages
KW  - Quality
KW  - Safety devices
KW  - Seed testing
KW  - Seed treatment
KW  - Spring crops
KW  - Surveying
KW  - Varieties
KW  - Winter crops
KW  - Wheat
KW  - Yields
N1  - Illustrations, tables, graphs, maps, references
ER  -