Journal of the Entomological Society of British Columbia
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The effect of height of pheromone-baited traps on catches of the ambrosia beetle, Trypodendron lineatum
Full text linkPheromone-baited sticky traps were suspended at five heights in five locations to determine the optimum height for catching the ambrosia beetle <i>Trypodendron lineatum</i> (Oliv.). Maximum catches were obtained on traps at, or just below, the height of the surrounding underbrush
Early season apple pest management: Control of two species of scales (Homo.: Diaspididae) and bruce spanworm (Lep.: Geometridae) with methidathion
Full text linkThe organophosphate insecticide, methidathion, proved to be more efficacious for the control of San Jose scale (<i>Quadraspidiotus perniciosus</i> (Comstock)) and European fruit scale (<i>Q. ostraeformis</i> (Curtis)) than dormant oil when applied at the tight cluster stage of bud development. The compound also provided effective control of Bruce spanworm (<i>Operophtera bruceata</i> (Hulst)) and did not cause excessive mortality of the predaceous mites responsible for the biological control of orchard phytophagous mites. Methidathion use could be integrated into existing orchard pest management programs by using currently accepted sampling schemes for the above pest organisms to determine when thresholds requiring treatment have been exceeded
Evaluation of pine oil for protecting white spruce from spruce beetle (Coleoptera: Scolytidae) attack
Full text linkThe effectiveness of two formulations of pine oil (Norpine 65 and BBR-2) in protecting white spruce from attacks by spruce beetles was tested in south-central Alaska. Fifty percent of the pheromone-baited trees were protected by Norpine 65 for | year after treatment whereas only 33% were protected by BBR-2. Baited trees sprayed with Norpine 65 and BBR-2 were attacked less frequently than were baited check trees and sustained a lower attack density per tree. The percentage of trees protected by Norpine 65 was 13% greater than those protected by BBR-2. Although 85% of the trees treated with Norpine 65 were attacked, the attack density was approximately half that of trees treated with BBR-2
Errata
No full textIn Wilkinson, P.R. 1984. Hosts and distribution of Rocky Mountain wood ticks (<i>Dermacentor andersoni</i>) at a tick focus in British Columbia rangeland, Vol. 81: 57-71, table 2, footnote 1: the entry "1 muskrat on July 20", should be "1 weasel on July 20". The name <i>Mustela</i> was somehow transposed into muskrat
The aphids (Homoptera: Aphididae) of British Columbia 17. A revised host plant catalogue
Full text linkA host plant catalogue of 919 species and the associated aphids collected in British Columbia is presented
