Hessian fly in west virginia and how to prevent losses from its ravages
Hopkins, A.D.
Hessian fly in west virginia and how to prevent losses from its ravages - Morgantown 1900 - 239-250 p. - Fly West Virgina Agricultural Experiment Station. Bulletin No. 67 .
Hessian fly in west virginia and how to prevent losses from its ravages - Morgantown 1900 - 239-250 p. - Fly West Virgina Agricultural Experiment Station. Bulletin No. 67 .