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Found 25 results for "H. Gratkowski"

Toxicity of herbicides on three northwestern conifers
Toxicity of herbicides on three northwestern conifers

by H. Gratkowski

1961 1 ed.
Ponderosa pine -- Herbici... Sugar pine -- Herbicide i... Douglas fir -- Herbicide ...
Survival of Douglas-fir seedlings sprayed with atrazine, terbacil, and 2,4-D
Survival of Douglas-fir seedlings sprayed with atrazine, ter...

by H Gratkowski

1979 3 ed.
Herbicides Testing Douglas fir
Survival of Douglas-fir seedlings sprayed with atrazine, terbacil, and 2,4-D
Survival of Douglas-fir seedlings sprayed with atrazine, ter...

by H. Gratkowski

1979 3 ed.
Herbicides Testing Douglas fir
Reclamation of nonsprouting greenleaf manzanita brushfields in the Cascade Range
Reclamation of nonsprouting greenleaf manzanita brushfields ...

by H. Gratkowski

1968 1 ed.
Arctostaphylos. Aerial spraying and dusti... Herbicides -- Cascade Ran...
Aerial spray adjuvants for herbicidal drift control
Aerial spray adjuvants for herbicidal drift control

by H. Gratkowski

1973 2 ed.
Herbicides Aerial spraying and dusti... Spraying and dusting resi...
Herbicidal drift control
Herbicidal drift control

by H. Gratkowski

1974 2 ed.
Herbicides Aerial spraying and dusti... Environmental aspects
Pregermination treatments for redstem ceanothus seeds
Pregermination treatments for redstem ceanothus seeds

by H. Gratkowski

1973 2 ed.
Germination Seeds Ceanothus
Toxicity of herbicides on three northwestern conifers
Toxicity of herbicides on three northwestern conifers

by H. Gratkowski

1961 1 ed.
Herbicides Toxicology Conifers
Repeated spraying to control southwest Oregon brush species
Repeated spraying to control southwest Oregon brush species

by H. Gratkowski

1968 1 ed.
Brush -- Control -- Orego...
Effects of herbicides on some important brush species in southwestern Oregon
Effects of herbicides on some important brush species in sou...

by H. Gratkowski

1959 1 ed.
Herbicides -- Oregon, Wes... Brush -- Control -- Orego...
Silvicultural use of herbicides in Pacific Northwest forests
Silvicultural use of herbicides in Pacific Northwest forests

by H Gratkowski

1975 1 ed.
Herbicides Forests and forestry
Herbicides for shrub and weed tree control in western Oregon
Herbicides for shrub and weed tree control in western Oregon

by H Gratkowski

1978 1 ed.
Herbicides Testing
Herbicides for grass and forb control in Douglas-fir plantations
Herbicides for grass and forb control in Douglas-fir plantat...

by H Gratkowski

1976 1 ed.
Herbicides Grasses Douglas fir
Midsummer foliage sprays on salmonberry and thimbleberry
Midsummer foliage sprays on salmonberry and thimbleberry

by H. Gratkowski

1971 1 ed.
Salmonberry -- Control --... Rubus parviflorus -- Cont... Brush -- Control -- Orego...
Repeated spraying to control southwest Oregon brush species
Repeated spraying to control southwest Oregon brush species

by H. Gratkowski

1968 1 ed.
Brush Control
Brush problems in southwestern Oregon
Brush problems in southwestern Oregon

by H. Gratkowski

1961 1 ed.
Control Brush
Effects of herbicides on some important brush species in southwestern Oregon
Effects of herbicides on some important brush species in sou...

by H. Gratkowski

1959 1 ed.
Herbicides Control Brush
Herbicides for grass and forb control in Douglas-fir plantations
Herbicides for grass and forb control in Douglas-fir plantat...

by H. Gratkowski

1976 1 ed.
Herbicides Control Forbs
Midsummer foliage sprays on salmonberry and thimbleberry
Midsummer foliage sprays on salmonberry and thimbleberry

by H. Gratkowski

1971 1 ed.
Herbicides Salmonberry Control
Reclamation of nonsprouting greenleaf manzanita brushfields in the Cascade Range
Reclamation of nonsprouting greenleaf manzanita brushfields ...

by H. Gratkowski

1968 1 ed.
Arctostaphylos Herbicides Aerial spraying and dusti...