Comparison of spinosad with three traditional grain protectants against Prostephanus truncatus (Horn) and Ephestia kuehniella (Zeller) at different temperatures

dc.contributor.author	Pozidi-Metaxa, E	en
dc.contributor.author	Athanassiou, CG	en
dc.date.accessioned	2014-06-06T06:52:23Z
dc.date.available	2014-06-06T06:52:23Z
dc.date.issued	2013	en
dc.identifier.issn	16124758	en
dc.identifier.uri	http://dx.doi.org/10.1007/s10340-012-0445-y	en
dc.identifier.uri	http://62.217.125.90/xmlui/handle/123456789/5986
dc.subject	Chlorpyriphos-methyl	en
dc.subject	Deltamethrin	en
dc.subject	Ephestia kuehniella	en
dc.subject	Pirimiphos-methyl	en
dc.subject	Prostephanus truncatus	en
dc.subject	Spinosad	en
dc.subject	Stored grains	en
dc.subject.other	comparative study	en
dc.subject.other	deltamethrin	en
dc.subject.other	insect	en
dc.subject.other	maize	en
dc.subject.other	mortality	en
dc.subject.other	pest control	en
dc.subject.other	spinosad	en
dc.subject.other	temperature effect	en
dc.subject.other	testing method	en
dc.subject.other	wheat	en
dc.subject.other	Anagasta kuehniella	en
dc.subject.other	Bostrichidae	en
dc.subject.other	Coleoptera	en
dc.subject.other	Kuehniella	en
dc.subject.other	Lepidoptera	en
dc.subject.other	Prostephanus truncatus	en
dc.subject.other	Pyralidae	en
dc.subject.other	Triticum aestivum	en
dc.subject.other	Zea mays	en
dc.title	Comparison of spinosad with three traditional grain protectants against Prostephanus truncatus (Horn) and Ephestia kuehniella (Zeller) at different temperatures	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/s10340-012-0445-y	en
heal.publicationDate	2013	en
heal.abstract	The insecticidal effects of deltamethrin, chlorpyriphos-methyl, pirimiphos-methyl, and spinosad were evaluated against adults of Prostephanus truncatus (Horn) (Coleoptera: Bostrychidae) and larvae of Ephestia kuehniella (Zeller) (Lepidoptera: Pyralidae). Spinosad was applied at 1 and 0.5 ppm, deltamethrin at 0.5 ppm, chlorpyriphos-methyl at 2.25 ppm, and pirimiphos-methyl at 4 ppm. All tests were carried out on wheat for E. kuehniella and in maize for P. truncatus, at three temperature levels, 20, 25, and 30 °C. Mortality of the exposed individuals of P. truncatus was measured after 7, 14, and 21 days of exposure, and 60 days later, the progeny production in the treated and untreated substrate was recorded. In the case of Ephestia kuehniella, mortality was assessed after 25 days. Spinosad was highly effective against P. truncatus adults, even at 0.5 ppm, but 1 ppm provided a better ""speed of kill"" and a higher suppression of progeny production. Mortality of the exposed P. truncatus adults after 21 days of exposure on maize treated with 0.5 ppm of spinosad was 100 %, regardless of the temperature level tested. A complete (100 %) mortality level was also noted in the case of maize treated with deltamethrin and pirimiphos-methyl, while in the case of chlorpyriphos-methyl, mortality at the 21 day exposure ranged between 61 and 90 %. Progeny production was completely suppressed only on maize treated with deltamethrin. In contrast, pirimiphos-methyl was the most effective grain protectant for E. kuehniella, since mortality was usually <99 %. In general, for both species tested, temperature had a significant effect on mortality, but this trend was different at different insecticides. © 2012 Springer-Verlag.	en
heal.journalName	Journal of Pest Science	en
dc.identifier.issue	2	en
dc.identifier.volume	86	en
dc.identifier.doi	10.1007/s10340-012-0445-y	en
dc.identifier.spage	203	en
dc.identifier.epage	210	en