The corn earworm as an enemy of field corn in the eastern states /
Phillips, W. J.
The corn earworm as an enemy of field corn in the eastern states / by W. J. Phillips and George W. Barber - Washington : Department of agriculture - 18 p. - EUA. Dep. of Agri. Farmers' bull.; 1651 .
203987
Heliothis (Helicoverpa) zea Maíz -- Plagas
The corn earworm as an enemy of field corn in the eastern states / by W. J. Phillips and George W. Barber - Washington : Department of agriculture - 18 p. - EUA. Dep. of Agri. Farmers' bull.; 1651 .
203987
Heliothis (Helicoverpa) zea Maíz -- Plagas