Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Gary E, Daterman"'
Publikováno v:
Western Journal of Applied Forestry. 19:77-81
A geographical information system (GIS) and historical infestation data were used to validate a Douglas-fir beetle hazard-rating system currently in use by the USDA Forest Service in parts of the West. This hazard-rating system is based on stand char
Publikováno v:
Journal of Economic Entomology. 95:778-781
The antiaggregation pheromone 3-methylcyclohex-2-en-1-one (MCH) is highly effective in preventing the infestation of high-risk trees by Douglas-fir beetle, Dendroctonus pseudotsugae Hopkins. A large portion of the cost of an MCH treatment is related
Autor:
Darrell W. Ross, Gary E. Daterman
Publikováno v:
Journal of Economic Entomology. 91:500-506
Several different aggregation pheromone release rates and trap designs were evaluated for trapping the Douglas-fir beetle, Dendroctonus pseudotsugae Hopkins. Frontalin:seudenol release rates of 160:80, 80:40, 40:20, 20:10, 10:5, and 1:0.5 mg/d, respe
Autor:
Darrell W. Ross, Gary E. Daterman
Publikováno v:
Journal of Economic Entomology. 88:106-111
The attractiveness of frontalin alone and in combinations with ethanol, MCOL (1-methylcyclohex-2-en-1-01), and seudenol (3-methylcyclohex-2-en-l-ol) to the Douglas-fir beetle, Dendroctonus pseudotsugae Hopkins, and associated predators was determined
Autor:
Darrell W. Ross, Gary E. Daterman
Publikováno v:
Canadian Journal of Forest Research. 24:2184-2190
A combination of antiaggregation and aggregation pheromones was tested for protecting stands of Douglas-fir (Pseudotsugamenziesii (Mirb.) Franco) at high risk for infestation by the Douglas-fir beetle (Dendroctonuspseudotsugae Hopkins). The antiaggre
Publikováno v:
Canadian Journal of Forest Research. 22:436-441
Mountain pine beetle, Dendroctonusponderosae Hopkins, is the primary pest affecting lodgepole pine, Pinuscontorta var. latifolia Engelm., ecosystems in western North America. In 1988, aerial treatments of the antiaggregation pheromone, verbenone, wer
Publikováno v:
Journal of Economic Entomology. 83:1487-1491
Synthetic sex pheromone of Douglas-fir tussock moth, Orgyia pseudotsugata (McDunnough), was applied at 25 g/ha in hollow fibers to four plots of 16 ha each with preoutbreak level populations in north-central California. Treatment reduced the populati
Publikováno v:
Journal of economic entomology. 95(4)
The antiaggregation pheromone 3-methylcyclohex-2-en-1-one (MCH) is highly effective in preventing the infestation of high-risk trees by Douglas-fir beetle, Dendroctonus pseudotsugae Hopkins. A large portion of the cost of an MCH treatment is related
Publikováno v:
Journal of Economic Entomology. 76:1148-1151
Damage of Eucosma sonomana Kearfott to Pinus ponderosa Lawson was significantly reduced (46 to 73%) by mating disruption with low seasonal dosages (3.5 to 5 g/ha) of synthetic pheromone (4:1 mix of Z-9 and E-9 dodecenyl acetates) released from widely