Biology and control of tree hoppers injurious to fruit trees in the pacific northwest /
Yothers, M.A.
Biology and control of tree hoppers injurious to fruit trees in the pacific northwest / by M.A., Yothers - Washington, D.C. : USDA - 46 p. - Technical bulletin, 402 .
Encuadernado con : Orchard insects... / by E.J. Newcomer
200802
Arboles -- plagas
Arboles frutales -- plagas
Control biológico de plagas
PA-C 634 N4 1933
Biology and control of tree hoppers injurious to fruit trees in the pacific northwest / by M.A., Yothers - Washington, D.C. : USDA - 46 p. - Technical bulletin, 402 .
Encuadernado con : Orchard insects... / by E.J. Newcomer
200802
Arboles -- plagas
Arboles frutales -- plagas
Control biológico de plagas
PA-C 634 N4 1933