Books by H. Gratkowski
Herbicidal drift control
Herbicidal drift control
Aerial spray adjuvants for her
Aerial spray adjuvants for herbicidal drift control
Pregermination treatments for redstem ceanothus seeds
Midsummer foliage sprays on salmonberry and thimbleberry
Reclamation of nonsprouting greenleaf manzanita brushfields in the Cascade Range
Repeated spraying to control southwest Oregon brush species
Brush problems in southwestern Oregon
Toxicity of herbicides on three northwestern conifers
Effects of herbicides on some important brush species in southwestern Oregon