Concepedia

John S. Hard

JS

Statistics

Publications

8

Citations

227

H-Index

8

Active since

1950

Affiliations

Pacific Northwest Research Station(Current)

John S. Hard is an author at Pacific Northwest Research Station specializing in insect ecology, life sciences, and forest insect pests.

Publications per year

1950–2008

8

Publications

8

Spruce Beetles Attack Slowly Growing Spruce

John S. Hard · Forest Science · 1985 · 63 citations · Full text

, , +10

Protection of spruce from colonization by the bark beetle, Ips perturbatus, in Alaska

Andrew D. Graves, Edward H. Holsten, Mark E. Ascerno et al. · Forest Ecology and Management · 2008 · 48 citations

, , +14

Susceptibility of white spruce to attack by spruce beetles during the early years of an outbreak in Alaska

John S. Hard, Richard A. Werner, Edward H. Holsten · Canadian Journal of Forest Research · 1983 · 34 citations

, , +15

Invasive Species in the Last Frontier: Distribution and Phenology of Birch Leaf Mining Sawflies in Alaska

Cynthia L. Snyder, Chris J.K. MacQuarrie, Ken P. Zogas et al. · Journal of Forestry · 2007 · 28 citations · Full text

, , +15

Vulnerability of white spruce with slowly expanding lower boles on dry, cold sites to early seasonal attack by spruce beetles in south central Alaska

John S. Hard · Canadian Journal of Forest Research · 1987 · 17 citations

, , +16

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