Yazar
paul e buffam
6 cilt bulundu.
Paul E. Buffam · Insect and Disease Control Branch, Division of Timber Management, Pacific Northwest Region, U.S. Dept. of Agriculture, Forest Service
29 sayfa · 1964
Hemlock looper / Diseases and pests / Forest insects / Biological control / Western hemlock
Paul E. Buffam · Division of Timber Management, Insect and Disease Control Branch, U.S. Forest Service, Pacific Northwest Region
15 sayfa · 1963
Western hemlock looper / Diseases and pests / Forest insects / Biological control / Western hemlock
Paul E. Buffam · Insect and Disease Control Branch, Division of Timber Management, Pacific Northwest Region, U.S.D.A. Forest Service
41 sayfa · 1964
Hemlock looper / Diseases and pests / Forest insects / Biological control / Western hemlock
Paul E. Buffam · Insect and Disease Control Branch, Division of Timber Management, Pacific Northwest Region, U.S. Dept. of Agriculture, Forest Service
19 sayfa · 1963
Western hemlock looper / Western hemlock / Diseases and pests / Hemlock looper
Paul E. Buffam · Yayınevi bilinmiyor
69 sayfa · 1960
Aphididae / Insect pests / Beneficial insects / Biological control / Beetles