John S. Hard

Identifiers

Open LibraryOL4519291A

Top Subjects

Red pine (3)
Hemlock sawfly (3)
Pine cones (2)
Forest insects -- Alaska (2)
Frost damage (1)
Wisconsin (1)
Pine (1)

Books by John S. Hard

Total count: 14

Frost damage to red pine conelets

Lake States Forest Experiment Station, U.S. Dept. of Agriculture1963-01-01
Vertical distribution of cones in red pine

Lake States Forest Experiment Station, U.S. Dept. of Agriculture1964-01-01
The identification of primary red pine cone insects

Lake States Forest Experiment Station, Forest Service, U.S. Department of Agriculture1964-01-01
Identification of destructive Alaska forest insects

Pacific Northwest Forest and Range Experiment Station, Institute of Northern Forestry1967-01-01
Effects of semistarvation during late larval stages on survival and fecundity of the hemlock sawfly in the laboratory

Pacific Northwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture1971-01-01
Sequential sampling of hemlock sawfly eggs in southeast Alaska

Or.1971-01-01
The forest ecosystem of southeast Alaska.

Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, Forest Service1974-01-01
Field and laboratory techniques for evaluating hemlock sawfly infestations

U.S. Forest Service1975-01-01
Hemlock sawfly[Rev. Aug. 1976]

U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station1976-01-01
Estimation of hemlock sawfly (Hymenoptera: diprionidae) fecundity

Dept. of Agriculture, Forest Service, Forest Products Laboratory1976-01-01
Control of Douglas-fir tussock moth by aerially applied Dimilin (TH 6040)

Dept. of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station1978-01-01
A reevaluation of 1978 aerial Bacillus thuringiensis Berliner (Bt) applications for cankerworm control in Siberian elm shelterbelts

Forest Insect & Disease Management, USDA, Forest Service, Northern Region, State & Private Forestry1979-01-01
Western spruce budworm defoliation trend relative to weather in the Northern Region, 1969-1979

USDA Forest Service, Northern Region, State & Private Forestry1980-01-01
Managing white and Lutz spruce stands in south-central Alaska for increased resistance to spruce beetle

U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station1985-01-01