H. Gratkowski

Subjects

Herbicides, Control, Brush, Testing, Aerial spraying and dusting in forestry, Douglas fir, Effect of herbicides on, Plants, Aerial spraying and dusting in agriculture, Aerial spraying and dusting in forestry -- Cascade Range., Arctostaphylos, Arctostaphylos., Atrazine, Brush -- Control -- Oregon -- Coos County., Brush -- Control -- Oregon, Western., Brush -- Control -- Oregon., Buckhorn -- Seeds., Case studies, Ceanothus, Ceanothus velutinus., Conifers, Dichlorophenoxyacetic acid, Dichlorophenoxyacetic acid -- Toxicology -- Northwest, Pacific., Diseases and pests, Douglas fir -- Herbicide injuiries -- Northwest, Pacific.

Places

Oregon, Cascade Range, Coos Bay (Or.), Western Oregon