Nijholt, W.W.
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Pine oil, a feeding deterrent for the white pine weevil, Pissodes strobi (Coleoptera: Curculionidae) 1984. Alfaro, R.I.; Borden, J.H.; Harris, L.J.; Nijholt, W.W.; McMullen, L.H. The Canadian Entomologist 116: 41-44.
Alfaro, R.I.; Borden, J.H.; Harris, L.J.; Nijholt, W.W.; McMullen, L.H.
Year: 1984
Catalog ID: 2353
Issued by: Pacific Forestry Centre
Availability: Order paper copy (free)
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Flight behavior of ambrosia beetles near free-standing sticky-screen traps. 1983. Nijholt, W.W. Canadian Forestry Service Research Notes 3(2): 8-9.
Year: 1983
Catalog ID: 2278
Issued by: Pacific Forestry Centre
Availability: Not available through the CFS (click for more information).
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Pine oil protects living trees from attack by three bark beetle species, Dendroctonus spp. (Coleoptera: Scolytidae) 1981. Nijholt, W.W.; McMullen, L.H.; Safranyik, L. The Canadian Entomologist 113: 337-340.
Nijholt, W.W.; McMullen, L.H.; Safranyik, L.
Year: 1981
Catalog ID: 2036
Issued by: Pacific Forestry Centre
Availability: Not available through the CFS (click for more information).
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Ambrosia beetles in alder. 1981. Nijholt, W.W. Canadian Forestry Service Research Notes 1(2): 12.
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Pine oil prevents mountain pine beetle attack on living lodgepole pine trees. 1980. Nijholt, W.W.; McMullen, L.H. Bi-monthly Research Notes 36(1): 1-2.
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Pine oil and oleic acid delay and reduce attacks on logs by ambrosia beetles (Coleoptera: Scolytidae) 1980. Nijholt, W.W. The Canadian Entomologist 112: 199-204.
Year: 1980
Catalog ID: 2033
Issued by: Pacific Forestry Centre
Availability: Not available through the CFS (click for more information).
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Times of log attack by the ambrosia beetle Trypodendron lineatum in coastal British Columbia. 1980. Chapman, J.A.; Nijholt, W.W. Environment Canada, Canadian Forestry Service, Pacific Forest Research Centre, Victoria, BC. Information Report BC-X-207. 7 p.
Year: 1980
Catalog ID: 2022
Issued by: Pacific Forestry Centre
Availability: Order paper copy (free), PDF (download)
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Time of attack flight of ambrosia beetle Trypodendron lineatum (Oliv.) (Coleoptera: Scolytidae) in relation to weather in coastal British Columbia. 1980. Chapman, J.A.; Nijholt, W.W. Environment Canada, Canadian Forestry Service, Pacific Forest Research Centre, Victoria, BC. Information Report BC-R-5. 23 p.
Year: 1980
Catalog ID: 2021
Issued by: Pacific Forestry Centre
Availability: Order paper copy (free), PDF (download)
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Pine oil delays attack of ambrosia beetle on piled log sections. 1979. Nijholt, W.W. Bi-monthly Research Notes 35(4): 22-23.
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The striped ambrosia beetle, Trypodendron lineatum (Olivier). An annotated bibliography. (Microfiche) 1979. Nijholt, W.W. Fisheries and Environment Canada, Canadian Forest Service, Pacific Forest Research Centre, Victoria, BC. Information Report BC-X-121. 35 p.
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Ambrosia beetle. A menace to the forest industry. 1978. Nijholt, W.W. Fisheries and Environment Canada, Canadian Forest Service, Pacific Forest Research Centre, Victoria, BC. Information Report BC-P-25. 8 p.
Year: 1978
Catalog ID: 1810
Issued by: Pacific Forestry Centre
Availability: Order paper copy (free), PDF (download)
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Evaluation of operational watermisting for log protection from ambrosia beetle damage. 1978. Nijholt, W.W. Environment Canada, Forestry Service, Pacific Forest Research Centre, Victoria, BC. Information Report BC-P-22.
Year: 1978
Catalog ID: 1809
Issued by: Pacific Forestry Centre
Availability: Order paper copy (free), PDF (download)
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Chemical response behavior of scolytids in west Germany and western Canada. 1976. Nijholt, W.W.; Shonherr, J. Bi-monthly Research Notes 32(6): 31-32.
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Changes in triglyceride fatty acids during brood production of Douglas-fir beetles (Coleoptera: Scolytidae) 1974. Nijholt, W.W.; Sahota, T.S. The Canadian Entomologist 106: 927-932.
Year: 1974
Catalog ID: 29106
Issued by: Pacific Forestry Centre
Availability: Not available through the CFS (click for more information).
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Occurrence of juvabione-related compounds in grand fir and pacific silver fir infested by balsam woolly aphid. 1974. Puritch, G.S.; Nijholt, W.W. Canadian Journal of Botany 52(3): 585-587.
Year: 1974
Catalog ID: 1591
Issued by: Pacific Forestry Centre
Availability: PDF (request by e-mail)
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The effect of male Trypodendron lineatum (Coleoptera: Scolytidae) on the response of field populations to secondary attraction. 1973. Nijholt, W.W. The Canadian Entomologist 105: 583-590.
Year: 1973
Catalog ID: 28689
Issued by: Pacific Forestry Centre
Availability: Not available through the CFS (click for more information).
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Ambrosia beetle attacks delayed by turpentine oil. 1973. Nijholt, W.W. Bi-monthly Research Notes 29(6): 36.
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Methods of analysis for free amino acids in conifer bark and needles using gas-liquid chromatography. 1973. Nijholt, W.W. Environment Canada, Canadian Forestry Service, Pacific Forest Research Centre, Victoria, BC. Information Report BC-X-085. 23 p.
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Water misting for log protection from ambrosia beetles in B.C. 1972. Richmond, H.A.; Nijholt, W.W. Environment Canada, Canadian Forestry Service, Pacific Forest Research Centre, Victoria, BC. Information Report BC-P-04, cooperative project by the B.C. Forest Products Ltd & Council of the Forest Industries. 34 p.
Year: 1972
Catalog ID: 26520
Issued by: Pacific Forestry Centre
Availability: Order paper copy (free), PDF (download)
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Ovary development in a scolytid beetle Dendroctonus pseudotsugae (Coleoptera: Scolytidae): effect on farnesyl methyl ether. 1970. Sahota, T.S.; Chapman, J.A.; Nijholt, W.W. The Canadian Entomologist 102(11): 1424-1428.
Sahota, T.S.; Chapman, J.A.; Nijholt, W.W.
Year: 1970
Catalog ID: 28257
Issued by: Pacific Forestry Centre
Availability: Not available through the CFS (click for more information).
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The effect of mating and the presence of the male ambrosia beetle, Trypodendron lineatum, on “secondary” attraction. 1970. Nijholt, W.W. The Canadian Entomologist 102(7): 894-897.
Year: 1970
Catalog ID: 28236
Issued by: Pacific Forestry Centre
Availability: Not available through the CFS (click for more information).
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Fat content of the ambrosia beetle, Trypodendron lineatum (Oliv.) during attack and brood production. 1969. Nijholt, W.W. Journal of the Entomological Society of British Columbia 66: 29-31.
Year: 1969
Catalog ID: 27983
Issued by: Pacific Forestry Centre
Availability: Not available through the CFS (click for more information).
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A flight trap for collecting living insects. 1968. Nijholt, W.W. Canadian Entomologist 100(11): 1151-1153.
Year: 1968
Catalog ID: 27881
Issued by: Pacific Forestry Centre
Availability: Not available through the CFS (click for more information).
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Moisture and fat content during the adult life of the ambrosia beetle, Trypodendron lineatum (Oliv.) 1967. Nijholt, W.W. Journal of the Entomological Society of British Columbia 64: 51-55.
Year: 1967
Catalog ID: 27808
Issued by: Pacific Forestry Centre
Availability: Not available through the CFS (click for more information).
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Moisture and fat content in the ambrosia beetle Trypodendron Lineatum (Oliv.) 1965. Nijholt, W.W. Proceedings of the Entomological Society of British Columbia 62: 16-18.
Year: 1965
Catalog ID: 27743
Issued by: Pacific Forestry Centre
Availability: Not available through the CFS (click for more information).
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Observations of overwintering Pseudohylesinus and Trypodendron. 1965. Dyer, E.D.A.; Nijholt, W.W. Bi-monthly Progress Report 21(4): 3.
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Proportion of old and young adults in an overwintering population of the ambrosia beetle, Trypodendron lineatum (Oliv.) 1965. Chapman, J.A.; Nijholt, W.W. Bi-monthly Progress Report 21(1): 3-4.
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Nijholt, W.W.; Chapman, J.A. 1964. Uptake of water by the ambrosia beetle. Trypodendron, following desiccation. Bi-monthly Progress Report 20(6): 3-4.
