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J Econ Entomol

Title:		A Biodegradable Formulation of MCH (3-Methylcyclohex-2-en-1-one) for Protecting Pseudotsuga menziesii from Dendroctonus pseudotsugae (Coleoptera: Curculionidae) Colonization
Author(s):		Foote GG; Fettig CJ; Ross DW; Runyon JB; Coleman TW; Gaylord ML; Graves AD; McMillin JD; Mortenson LA; Mafra-Neto A;
Address:		"Department of Forest Ecosystems and Society, Oregon State University, Corvallis, OR. Pacific Southwest Research Station, USDA Forest Service, Davis, CA. Rocky Mountain Research Station, USDA Forest Service, Bozeman, MT. Forest Health Protection, USDA Forest Service, Ashville, NC. Forest Health Protection, USDA Forest Service, Flagstaff, AZ. Forest Health Protection, USDA Forest Service, Albuquerque, NM. Pacific Southwest Research Station, USDA Forest Service, Placerville, CA. ISCA Technologies Inc., Riverside, CA"
Journal Title:		J Econ Entomol
Year:		2020
Volume:		113
Issue:		4
Page Number:		1858 - 1863
DOI:		10.1093/jee/toaa061
ISSN/ISBN:		1938-291X (Electronic) 0022-0493 (Linking)
Abstract:		"Douglas-fir, Pseudotsuga menziesii (Mirb.) Franco, trees and stands can be protected from Douglas-fir beetle, Dendroctonus pseudotsugae Hopkins (DFB)-caused mortality by application of synthetic formulations of the beetle's antiaggregation pheromone, 3-methylcyclohex-2-en-1-one (MCH). A biodegradable formulation of MCH, SPLAT MCH, was developed and evaluated for protecting individual Douglas-fir trees and small stands from colonization and mortality by DFB. In an individual-tree experiment in Idaho, both MCH bubble capsules and SPLAT MCH significantly reduced the proportion of treated trees colonized and killed by DFB compared to untreated controls. SPLAT MCH was as effective as MCH bubble capsules for protecting individual trees. Both MCH bubble capsules and SPLAT MCH significantly reduced the proportion of trees colonized and killed by DFB within 0.04-ha circular plots surrounding each treated tree compared to untreated controls. In 0.41 ha stands in New Mexico, both MCH bubble capsules and SPLAT MCH significantly reduced the proportion of trees colonized and killed by DFB compared to untreated controls, again with no differences observed between MCH treatments. In a similar stand level trial in Idaho, neither MCH treatment significantly reduced the proportion of trees colonized by DFB, and only MCH bubble capsules significantly reduced levels of tree mortality compared to untreated controls, but no significant difference was observed between SPLAT MCH and MCH bubble capsules. Overall, the results indicate that SPLAT MCH is as effective as MCH bubble capsules for protecting individual trees and small stands of Douglas-fir from DFB-caused mortality"
Keywords:		Animals *Coleoptera Cyclohexanes Idaho New Mexico *Pseudotsuga Trees *Weevils Douglas-fir Douglas-fir beetle Splat mch Scolytinae forest health;
Notes:		"MedlineFoote, Gabriel G Fettig, Christopher J Ross, Darrell W Runyon, Justin B Coleman, Tom W Gaylord, Monica L Graves, Andrew D McMillin, Joel D Mortenson, Leif A Mafra-Neto, Agenor eng Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. England 2020/04/14 J Econ Entomol. 2020 Aug 13; 113(4):1858-1863. doi: 10.1093/jee/toaa061"