Browsing Washington State University Extension by Author "Campbell, R. Lee (Ronald Lee)"
Now showing items 1-13 of 13
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Cooley spruce gall aphid
Antonelli, Arthur L.; Campbell, R. Lee (Ronald Lee) (Pullman, Washington : Washington State University. Extension., 1977-06) -
Disease and insect spray program for home gardens: Evergreen trees and shrubs
Byther, Ralph S.; Campbell, R. Lee (Ronald Lee) (Pullman, Washington : Washington State University. Extension., 1976-03) -
Disease and insect spray program for home gardens: Evergreen trees and shrubs
Byther, Ralph S.; Campbell, R. Lee (Ronald Lee) (Pullman, Washington : Washington State University. Extension., 1978-04) -
European pine shoot moth
Antonelli, Arthur L.; Campbell, R. Lee (Ronald Lee) (1979-06) -
Insect answers: Cooley spruce gall aphid
Antonelli, Arthur L.; Campbell, R. Lee (Ronald Lee) (Pullman, Washington : Washington State University. Extension., 1991-01) -
Insect answers: Cooley spruce gall aphid
Antonelli, Arthur L.; Campbell, R. Lee (Ronald Lee) (Pullman, Washington : Washington State University. Extension., 1981-10) -
Insect answers: the European crane fly: a lawn and pasture pest
Antonelli, Arthur L.; Campbell, R. Lee (Ronald Lee) (Pullman, Washington : Washington State University. Extension., 1989-05) -
Insect answers: the European crane fly: a lawn and pasture pest
Antonelli, Arthur L.; Campbell, R. Lee (Ronald Lee) (Pullman, Washington : Washington State University. Extension., 1987-04) -
Insect answers: the European crane fly: a lawn and pasture pest
Antonelli, Arthur L.; Campbell, R. Lee (Ronald Lee) (Pullman, Washington : Washington State University. Extension., 1991-08) -
Insect answers: the European crane fly: a lawn and pasture pest
Antonelli, Arthur L.; Campbell, R. Lee (Ronald Lee) (Pullman, Washington : Washington State University. Extension., 1994-08) -
Insect answers: the European crane fly: a lawn pest
Antonelli, Arthur L.; Campbell, R. Lee (Ronald Lee) (Pullman, Washington : Washington State University. Extension., 1981-10) -
Root Weevil Control on Rhododendrons
Antonelli, Arthur L.; Campbell, R. Lee (Ronald Lee) (Pullman, Washington : Washington State University. Extension., 2001-06)Descriptions cover five root weevils that cause most damage on rhododendrons in the Pacific Northwest. Root weevil stages and damage shown in color. Chemical and cultural controls. Includes extensive list of species and ... -
Root weevil control on rhododendrons
Antonelli, Arthur L.; Campbell, R. Lee (Ronald Lee) (1980-03)