Yazar
Gene D Amman
20 cilt bulundu.
Gene D. Amman · Intermountain Forest and Range Experiment Station
Sayfa sayısı yok · 1975
Lodgepole pine / Mountain pine beetle / Diseases and pests
Gene D. Amman · Intermountain Forest & Range Experiment Station, Forest Service, U.S. Dept. of Agriculture
11 sayfa · 1974
Mountain pine beetle / Sampling
Gene D. Amman · Intermountain Forest and Range Experiment Station, U.S.D.A., Forest Service
Sayfa sayısı yok · 1980
Lodgepole pine / Research / Mountain pine beetle / Diseases and pests
Gene D. Amman · U.S. Dept. of Agriculture, Forest Service, Intermountain Forest & Range Experiment Station
Sayfa sayısı yok · 1969
Lodgepole pine / Mountain pine beetle / Diseases and pests / Forestry
Gene D Amman · U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station
Sayfa sayısı yok · 1994
Biological control / Lodgepole pine / Pheromones / Mountain pine beetle / Diseases and pests
Gene D. Amman · U.S. Dept. of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station
Sayfa sayısı yok · 1991
Control / Lodgepole pine / Mountain pine beetle / Diseases and pests
Gene D Amman · U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station
Sayfa sayısı yok · 1988
Control / Lodgepole pine / Diseases and pests resistance / Mountain pine beetle / Forest regeneration
Gene D. Amman · Intermountain Research Station
Sayfa sayısı yok · 1995
Beetles / Trees / Diseases and pests
Gene D. Amman · Intermountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture
19 sayfa · 1977
Kategori yok
Gene D. Amman · United States Dept. of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station
59 sayfa · 1983
Lodgepole pine / Mountain pine beetle / Diseases and pests
Gene D. Amman · U.S. Dept. of Agriculture, Forest Service
11 sayfa · 1985
Mountain pine beetle / Pine / Diseases and pests
Gene D Amman · U.S. Dept. of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station
Sayfa sayısı yok · 1983
Control / Ponderosa pine / Mountain pine beetle / Diseases and pests
Gene D Amman · U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station
Sayfa sayısı yok · 1986
Beetles / Ponderosa pine / Trees / Diseases and pests
Gene D. Amman · Southeastern Forest Experiment Station, U.S. Dept. of Agriculture, Forest Service
Sayfa sayısı yok · 1970
Fraser fir / Balsam woolly adelgid / Diseases and pests
Gene D. Amman · Southeastern Forest Experiment Station, U.S. Dept. of Agriculture, Forest Service
Sayfa sayısı yok · 1970
Balsam woolly adelgid / Predators of / Identification
Gene D. Amman · Southeastern Forest Experiment Station, U.S. Dept. of Agriculture, Forest Service
Sayfa sayısı yok · 1971
Balsam woolly adelgid / Silver fir / Diseases and pests
Gene D. Amman · U.S. Dept. of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station
59 sayfa · 1983
Lodgepole pine / Mountain pine beetle / Diseases and pests
Gene D Amman · U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station
Sayfa sayısı yok · 1991
Forest fires / Insect pests / Forest insects / Trees / Diseases and pests