Canadian Forest Service Publications
Publications by D.S. Ruth
22 records.
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Effect of Diatomaceous earth, malathion, dimethoate and permethrin on Leptoglossus occidentalis (Hemiptera: Coreidae): A pest of conifer seed
Year: 1987
Catalog ID: 2762
Available from: Pacific Forestry Centre
CFS Availability: Print (free), PDF (request by e-mail) -
Effect of temperature during May to August on termination of prolonged diapause in Douglas-fir cone moth (Lepidoptera: Tortricidae)
Year: 1986
Catalog ID: 2554
Available from: Pacific Forestry Centre
CFS Availability: Print (free) -
Chemical lure for male Douglas-fir cone moth, Barbara colfaxiana (Lepidoptera: Olethreutidae)
Hedlin, A.F.; Weatherston, J.; Ruth, D.S.; Miller, G.E.
Year: 1983
Catalog ID: 2269
Available from: Pacific Forestry Centre
CFS Availability: Print (free) -
Attraction of male Epinotia sp. to traps baited with isomers of Dodecenol and Dodecenyl Acetate
Miller, G.E.; Ruth, D.S.; Grant, G.G.
Year: 1983
Catalog ID: 2275
Available from: Pacific Forestry Centre
CFS Availability: Not available through the CFS (click for more information). -
Induction of prolonged diapause in Barbara colfaxiana (Lepidoptera: Olethreutidae): correlations with cone crops and weather
Hedlin, A.F.; Miller, G.E.; Ruth, D.S.
Year: 1982
Catalog ID: 2178
Available from: Pacific Forestry Centre
CFS Availability: Print (free) -
A guide to common insect pests and diseases in spruce seed orchards in British Columbia
Ruth, D.S.; Miller, G.E.; Sutherland, J.R.
Year: 1982
Catalog ID: 2184
Available from: Pacific Forestry Centre
CFS Availability: PDF (download) -
Diapause in the pharate adult stage of insect development
Sahota, T.S.; Ruth, D.S.; Ibaraki, A.I.; Farris, S.H.; Peet, F.G.
Year: 1982
Catalog ID: 2288
Available from: Pacific Forestry Centre
CFS Availability: Print (free) -
Unusual phenomenon of diapause in Barbara colfaxiana
Year: 1981
Catalog ID: 2047
Available from: Pacific Forestry Centre
CFS Availability: Not available through the CFS (click for more information). -
Cone and seed pests
Ruth, D.S.; Senecal, M.A.; Carlson, J.A.
Year: 1980
Catalog ID: 30790
Available from: Pacific Forestry Centre
CFS Availability: PDF (download) -
A guide to insect pests in Douglas-fir seed orchards
Year: 1980
Catalog ID: 2039
Available from: Pacific Forestry Centre
CFS Availability: Print (free), PDF (download) -
Cone and seed insects, Cariboo Forest Region
Year: 1979
Catalog ID: 30776
Available from: Pacific Forestry Centre
CFS Availability: PDF (download) -
Observations on a twigminer, Argyresthia pseudotsuga Freeman (Lepidoptera: Yponomeutidae) in Douglas-fir seed orchards
Year: 1979
Catalog ID: 1818
Available from: Pacific Forestry Centre
CFS Availability: Not available through the CFS (click for more information). -
Examination of Douglas-fir clones for differences in susceptibility to damage by cone and seed insects
Year: 1978
Catalog ID: 1802
Available from: Pacific Forestry Centre
CFS Availability: Not available through the CFS (click for more information). -
Comparison of germinability of seed from insect-infested and uninfested cones
Year: 1977
Catalog ID: 1604
Available from: Pacific Forestry Centre
CFS Availability: PDF (download) -
Chemical and field studies on the sex pheromones of the cone and seed moths Barbara colfaxiana and Laspeyresia youngana
Weatherston, J.; Hedlin, A.F.; Ruth, D.S.; MacDonald, L.M.; Leznoff, C.C.; Fyles, T.M.
Year: 1977
Catalog ID: 1629
Available from: Pacific Forestry Centre
CFS Availability: Not available through the CFS (click for more information).Available from the Journal's Web site.
DOI: 10.1007/BF01944150 -
Barbara colfaxianna siskivouana (Kft.), a pest in cones of Abies grandis
Year: 1974
Catalog ID: 29100
Available from: Pacific Forestry Centre
CFS Availability: Not available through the CFS (click for more information). -
Temperature treatment of Douglas-fir seeds to control the seed chalcid Megastigmus spermotrophus Wachtl
Year: 1974
Catalog ID: 29110
Available from: Pacific Forestry Centre
CFS Availability: PDF (request by e-mail)Available from the Journal's Web site.
DOI: 10.1139/x74-065 -
A Douglas-fir twig mining beetle, Pityophthorus orarius (Coleoptera: Scolytidae)
Year: 1970
Catalog ID: 28210
Available from: Pacific Forestry Centre
CFS Availability: PDF (request by e-mail) -
Rearing the Douglas-fir cone moth, Barbara colfaxiana (Kearfott), on an artificial diet in the laboratory
Year: 1969
Catalog ID: 28015
Available from: Pacific Forestry Centre
CFS Availability: Not available through the CFS (click for more information). -
Studies on spruce plantations at Green Timbers
Year: 1966
Catalog ID: 25940
Available from: Pacific Forestry Centre
CFS Availability: Print (free), PDF (download) -
Preliminary survey of spruce beetle populations in logging slash in the Prince George Forest District August, 1964
Year: 1966
Catalog ID: 25785
Available from: Pacific Forestry Centre
CFS Availability: PDF (download) -
European pine shoot moth survey, south coastal British Columbia, 1965
Harris, J.W.E.; Ruth, D.S.; Fridell, E.; Gibson, C.A.
Year: 1965
Catalog ID: 24132
Available from: Pacific Forestry Centre
CFS Availability: Not available through the CFS (click for more information).
This may not be a complete list of the author's publications. This list provides the author's publications since he or she joined, or worked in cooperation with, the CFS. When available, another link is provided for periods of work elsewhere.
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