00478nam a2200157Ia 4500001001000000003000500010008004100015010001100056040000900067100001700076245007700093260004600170300001000216440005100226650004300277Para_5273CHAP220125s1920    xx            000 0 und d  a203745  cCHAP  aWalton, W. R  aThe Hessian fly  :b and how to prevent losses From it  /c W. R. Walton  aWashington  :b Department of Agriculture  a16 p.  aEUA. Dept. of Agriculture Farmers' bull.; 1083  aPhytophaga destructor  Trigo x Plagas