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Open AccessArticle

Methodology for Evaluating the Insect Growth Regulator (IGR) Methoprene on Packaging Films

Center for Grain and Animal Health Research, Agricultural Research Service, USDA, 1515 College Avenue, Manhattan, KS 66502, USA
Academic Editors: Nickolas Kavallieratos, Vincenzo Palmeri, Christos Athanassiou and Orlando Campolo
Insects 2016, 7(3), 33; https://doi.org/10.3390/insects7030033
Received: 31 May 2016 / Revised: 15 June 2016 / Accepted: 17 June 2016 / Published: 7 July 2016
(This article belongs to the Special Issue Alternatives to Chemical Control of Stored-Product Insects)
The insect growth regulator methoprene can be mixed into the matrix used to comprise bags and other packaging materials. Different methodologies were utilized to evaluate the efficacy of different types of methoprene-treated packaging towards Tribolium castaneum (Herbst), the red flour beetle, and T. confusum Jacquelin duVal, the confused flour beetle, two common insect species that infest stored products. Tests were conducted by creating arenas in which larvae were exposed on the packaging surface along with a flour food source, and assessments were made on adults emerging from the exposed progeny. Tests were also done by exposing adults, again with a flour food source, removing the adults after one week, and assessing adult emergence of progeny from those parental adults. In tests with larvae exposed on methoprene-treated birdseed bags, the outside surface had more activity compared to the inside surface, especially on T. confusum. In other studies with different types of packaging materials, there was generally 100% inhibition of adult emergence of exposed larvae or of progeny adults when parental adults were exposed on the methoprene-treated packaging. The best technique for evaluation was to expose late-stage larvae as the test life stage. Results show the potential of using methoprene-treated packaging for bagged storage of processed grains and grain products. View Full-Text
Keywords: methoprene; stored product insects; residual; control methoprene; stored product insects; residual; control
MDPI and ACS Style

Arthur, F.H. Methodology for Evaluating the Insect Growth Regulator (IGR) Methoprene on Packaging Films. Insects 2016, 7, 33.

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