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dc.contributor.authorReddy, Gadi V. P.
dc.contributor.authorShi, Pei-Jian
dc.contributor.authorMann, C. R.
dc.contributor.authorMantanona, D. M. H.
dc.contributor.authorDong, Z.
dc.date.accessioned2016-03-25T16:51:45Z
dc.date.available2016-03-25T16:51:45Z
dc.date.issued2012-09
dc.identifier.citationReddy, G.V. P., Shi, P., Mann, C. R., Mantanona, D.M.H., and Dong, Z. 2012. Can a semiochemical-based trapping method diminish the damage levels by Rhabdoscelus obscurus (Coleoptera: Curculionidae)? Annals of the Entomological Society of America 105: 693-700.en_US
dc.identifier.issn0013-8746
dc.identifier.urihttps://scholarworks.montana.edu/xmlui/handle/1/9637
dc.description.abstractThe New Guinea sugarcane weevil, Rhabdoscelus obscurus (Boisduval) (Coleoptera: Curculionidae), is an important pest of palms, ornamental nurseries, and sugarcane in the Pacific Islands. Without effective control methods, R. obscurus populations can cause major or complete loss of palm production in Guam and other Micronesian Islands. Moreover, R. obscurus has inflicted severe attacks on coconut trees on Guam. The role of monitoring is important in judging the dynamics of R. obscurus and recording area wide population trends. There is no precise research information available on the trap catch threshold levels relative to the damage caused by R. obscurus. Here we investigated the assessment of trap catch threshold levels and the potential for predicting R. obscurus larval damage by using adult pheromone trap captures. Spatial patterns of capture were studied in relation to subsequent larval damaged betel nut plants at various locations in Guam, United States, during 2010-2012. The generalized additive model was used to describe the effects of the treatment level (traps/ha), ranging from 0 to 12, and time on reducing the damage of R. obscurus to palms. We find that these two predictors are statistically significant, and the treatment level is demonstrated to be the crucial predictor for reducing the damage. There is no significant difference in effectively controlling the damage between the treatment levels of 9 and 12 traps/ha. At least 9 traps/ha is suggested for effectively controlling the damage based on results from the current study.en_US
dc.description.sponsorshipThis project was supported by FY 2009 Pacific Islands Area Conservation Innovation Grants (PIA-CIG) Program, Grant Agreement no. 69-9251-9-822, The Natural Resources Conservation Service-U.S. Department of Agriculture (NRCS-USDA) and USDA Hatch funds (Project no. GUA0561).en_US
dc.titleCan a Semiochemical-Based Trapping Method Diminish Damage Levels Caused by Rhabdoscelus obscurus (Coleoptera: Curculionidae)?en_US
dc.typeArticleen_US
mus.citation.extentfirstpage693en_US
mus.citation.extentlastpage700en_US
mus.citation.journaltitleAnnals of the Entomological Society of Americaen_US
mus.citation.volume105en_US
mus.identifier.categoryLife Sciences & Earth Sciencesen_US
mus.identifier.doi10.1603/an12044en_US
mus.relation.collegeCollege of Agricultureen_US
mus.relation.departmentResearch Centers.en_US
mus.relation.universityMontana State University - Bozemanen_US
mus.relation.researchgroupWestern Triangle Ag Research Center.en_US
mus.data.thumbpage3en_US


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