Yazar
Thomas Koerber
3 cilt bulundu.
Cilt sonuçları
Insects destructive to the Douglas-fir seed crop in California
Thomas W. Koerber · U.S. Dept. of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station
36 sayfa · 1960
Douglas fir / Contarinia / Seeds / Torymidae / Dioryctria
Lindane in forestry
Thomas W. Koerber · U.S. Dept. of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station
30 sayfa · 1976
Bark beetles / Control / Environmental aspects / Environmental aspects of Pesticides / Pesticides
Pests of the Native California Conifers
Robert F. Scharpf, David Wood, Thomas Koerber, Andrew Storer · University of California Press
245 sayfa · 2003
California / Conifers