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Evaluating High Release Rate MCH (3-Methylcyclohex-2-en-1-one) Treatments for Reducing Dendroctonus pseudotsugae (Coleoptera: Curculionidae) Infestations.
Brookes, Harrison M; Ross, Darrell W; Strand, Tara M; Thistle, Harold W; Ragenovich, Iral R; Lowrey, Laura L.
Afiliación
  • Brookes HM; Department of Forest Ecosystems and Society, Oregon State University, Corvallis, OR 97331 (brookeha@onid.oregonstate.edu; darrell.ross@oregonstate.edu).
  • Ross DW; Department of Forest Ecosystems and Society, Oregon State University, Corvallis, OR 97331 (brookeha@onid.oregonstate.edu; darrell.ross@oregonstate.edu).
  • Strand TM; Forest Protection, NZ Forest Research Institute, Scion, 49 Sala St., Rotorua 3046, New Zealand (Tara.Strand@scionresearch.com).
  • Thistle HW; Forest Health Technology Enterprise Team, USDA Forest Service, 180 Canfield St., Morgantown, WV 26505 (hthistle@fs.fed.us).
  • Ragenovich IR; Forest Health Protection, USDA Forest Service, 1220 SW Third Ave., Portland, OR 97208 (iragenovich@fs.fed.us).
  • Lowrey LL; Forest Health Protection, USDA Forest Service, 1249?S. Vinnell Way, Boise, ID 83709 (laurallowrey@fs.fed.us).
J Econ Entomol ; 109(6): 2424-2427, 2016 Dec 01.
Article en En | MEDLINE | ID: mdl-27694506
Current recommendations for applying the antiaggregation pheromone 3-methylcyclohex-2-en-1-one (MCH) to protect live trees from Douglas-fir beetle, Dendroctonus pseudotsugae Hopkins, infestation are to space individual passive releasers (MCH bubble capsules) on a 12- by 12-m grid throughout areas to be protected. Previous field studies and a theoretical study using a puff dispersion model to predict pheromone concentrations have shown that releasers emitting higher rates of MCH spaced farther apart may be as effective as the established standard treatment. During 2012 and 2013, we tested higher release rates of MCH at correspondingly wider spacings to keep the total amount of MCH released per unit area equal in all treatments. In 2012 near Challis, ID, treatments included the established standard release rate and spacing, four and six times the standard release rate at correspondingly wider spacings, and an untreated control. In 2013 near Ketchum, ID, treatments included the established standard release rate and spacing, five and seven times the standard release rate at correspondingly wider spacings, and an untreated control. Results from both years indicated that all MCH treatments were equally effective in reducing Douglas-fir beetle infestation. Using higher release rate formulations at wider spacings will reduce labor costs of installing MCH treatments, and, in cases where it is necessary, retrieving the releasers as well. In addition to reducing labor costs, the revised treatment protocol may increase the feasibility of treating areas that currently may not be possible due to treatment costs.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Feromonas / Control de Insectos / Ciclohexanos / Pseudotsuga / Gorgojos Tipo de estudio: Guideline / Prognostic_studies Límite: Animals Idioma: En Revista: J Econ Entomol Año: 2016 Tipo del documento: Article Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Feromonas / Control de Insectos / Ciclohexanos / Pseudotsuga / Gorgojos Tipo de estudio: Guideline / Prognostic_studies Límite: Animals Idioma: En Revista: J Econ Entomol Año: 2016 Tipo del documento: Article Pais de publicación: Reino Unido