Observations on the biology and control of the treehopper Heliria praealta (Fowler) in orchards of the pacific north west /
Yothers, M. A
Observations on the biology and control of the treehopper Heliria praealta (Fowler) in orchards of the pacific north west / by M. A. Yothers and Paul B. Allen - Washington : Department of Agriculture - 12 p. - EUA. Depart. of Agriculture Circular; 606 .
202900
Heliria Membracidae Control de plagas
Observations on the biology and control of the treehopper Heliria praealta (Fowler) in orchards of the pacific north west / by M. A. Yothers and Paul B. Allen - Washington : Department of Agriculture - 12 p. - EUA. Depart. of Agriculture Circular; 606 .
202900
Heliria Membracidae Control de plagas