Richard R. Mason

Identifiers

Open LibraryOL2385687A

Top Subjects

Douglas-fir tussock moth (7)
Sampling (Statistics) (2)
Western spruce budworm -- Oregon -- Statistics (2)
Spruce -- Diseases and pests -- Oregon -- Statistics (2)
Western spruce budworm (2)
Oregon (2)
Slavery -- United States (1)

Books by Richard R. Mason

Total count: 16

Slavery in America.An essay for the times.

Press of Crocker and Brewster1853-01-01
Controlled field test of stabilized pyrethrins against the western hemlock looper

Forest Service of the U.S. Department of Agriculture]1970-01-01
Collapse of an outbreak population of the douglas-fir tussock moth, Hemerocampa Pseudotsugata (Lepidoptera: Lymantriidae)

U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station1971-01-01
Forest-site relationships within an outbreak of lodgepole needle miner in central Oregon

Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, Forest Service1972-01-01
Sampling low density populations of the Douglas-fir tussock moth by frequency of occurrence in the lower tree crown

Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station1977-01-01
Detecting suboutbreak populations of the Douglas-fir tussock moth by sequential sampling of early larvae in the lower tree crown

Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station1978-01-01
Douglas-fir tussock moth handbookhow to sample Douglas-fir tussock moth larvae

Dept. of Agriculture : for sale by the Supt. of Docs., U.S. Govt. Print. Off.1979-01-01
How to predict population trends

U.S. Dept. of Agriculture, Combined Forest Pest Research and Development Program1983-01-01
Sampling Western Spruce Budworm larvae by counting larvae on lower crown branches

U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station1989-01-01
Sampling Western Spruce Budworm larvae by frequency of occurrence on lower crown branches

U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station1990-01-01
Forecasting outbreaks of the Douglas-fir tussock moth from lower crown cocoon samples

U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station1993-01-01
Monitoring larval populations of the Douglas-fir tussock moth and the western spruce budworm on permanent plotssampling methods and statistical properties of data

U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station1994-01-01
Case history of population change in a Bacillus thuringiensis-treated vs. an untreated outbreak of the western spruce budworm

U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station1996-01-01
Case history of population change in a Bacillus thuringiensis-treated vs. an untreated outbreak of the western spruce budworm

United States, Dept. of Agriculture, Forest Service, Pacific Northwest Research Station1996-01-01
Recurrent outbreak of the Douglas-fir tussock moth in the Malheur National Foresta case history

U.S. Dept. of Agriculture, Pacific Northwest Research Station1998-01-01
A pilot experiment of forest fertilization during an outbreak of the western spruce budworm in northeastern Oregon

U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station1998-01-01