Show simple item record

dc.contributor.authorPeterson, Robert K. D.
dc.contributor.authorPreftakes, Collin J.
dc.contributor.authorBodin, Jennifer L.
dc.contributor.authorBrown, Christopher R.
dc.contributor.authorPiccolomini, Alyssa M.
dc.contributor.authorSchleier, Jerome J.
dc.identifier.citationPeterson, Robert K D, Collin J Preftakes, Jennifer L Bodin, Christopher R. Brown, Alyssa M. Piccolomini, and Jerome J. Schleier. "Determinants of acute mortality of Hippodamia convergens (Coleoptera: Coccinellidae) to ultra-low volume permethrin used for mosquito management.." PeerJ 4 (June 2016): e2167. DOI: 10.7717/peerj.2167.en
dc.description.abstractThere are relatively few experimental studies and risk assessments of the effects on non-target insects from ultra-low volume (ULV) insecticides used for management of adult mosquitoes. Therefore, we evaluated factors that may influence the ability of an insect to intercept the insecticide at the time of application by using Hippodamia convergens (Coleoptera: Coccinellidae) in field bioassay experiments in 2011 and 2015. Treatment factors included different distances, two cage heights (ground-level and 1.5 m above ground) to the point of the application, and covered vs. uncovered cage faces (2015 only). Insecticides used included a water-based formulation (Aqua-Reslin®) and an oil-based formulation (Permanone® 30-30) of permethrin. Cage height was highly significant both years, with much less acute (i.e., short-term exposure) mortality at ground-level compared with 1.5 m. In 2011, acute mortality was less at ground-level (mean = 3.2%, median = 0%) compared to 1.5 m (mean = 85.2%, median = 100%). Cage type also was highly significant, with less mortality in covered cages compared to uncovered cages. Mortality by cage height and cage type was as follows: ground level, covered cage (mean = 2.8%, median = 0.1%); ground level, uncovered cage (mean = 41.9%, median = 9.6%); 1.5 m, covered cage (mean = 6.8%, median = 0%); 1.5 m, uncovered cage (mean = 83.7%, median = 100%). Results suggest that acute mortality to non-target insects may vary considerably based on their height and their ability to directly intercept the insecticide as the aerosol passes through the area being sprayed.en
dc.titleDeterminants of acute mortality of Hippodamia convergens (Coleoptera: Coccinellidae) to ultra-low volume permethrin used for mosquito management.en
mus.identifier.categoryLife Sciences & Earth Sciencesen
mus.relation.collegeCollege of Agricultureen
mus.relation.departmentLand Resources & Environmental Sciences.en
mus.relation.universityMontana State University - Bozemanen

Files in this item


This item appears in the following Collection(s)

Show simple item record
Except where otherwise noted, this item's license is described as

MSU uses DSpace software, copyright © 2002-2017  Duraspace. For library collections that are not accessible, we are committed to providing reasonable accommodations and timely access to users with disabilities. For assistance, please submit an accessibility request for library material.