The hessian fly and how losses from it can be avoided /
Walton, W. R.
The hessian fly and how losses from it can be avoided / by W. R. Walton and C. M. Packard - Washington : Department of Agriculture - 14 p. - EUA. Dep. of Agri. Farmers' bull.; 1627 .
203989
Phytophaga destructor Control de plagas
The hessian fly and how losses from it can be avoided / by W. R. Walton and C. M. Packard - Washington : Department of Agriculture - 14 p. - EUA. Dep. of Agri. Farmers' bull.; 1627 .
203989
Phytophaga destructor Control de plagas