Influence of temperature on susceptibility of Tribolium confusum (Coleoptera: Tenebrionidae) populations to three modified diatomaceous earth formulations

dc.contributor.author	Kavallieratos, NG	en
dc.contributor.author	Athanassiou, CG	en
dc.contributor.author	Vayias, BJ	en
dc.contributor.author	Maistrou, SN	en
dc.date.accessioned	2014-06-06T06:47:50Z
dc.date.available	2014-06-06T06:47:50Z
dc.date.issued	2007	en
dc.identifier.issn	00154040	en
dc.identifier.uri	http://dx.doi.org/10.1653/0015-4040(2007)90[616:IOTOSO]2.0.CO;2	en
dc.identifier.uri	http://62.217.125.90/xmlui/handle/123456789/3814
dc.subject	Modified diatomaceous earth	en
dc.subject	Populations	en
dc.subject	Temperature	en
dc.subject	Tribolium confusum	en
dc.subject	Wheat	en
dc.subject.other	adult	en
dc.subject.other	age-related difference	en
dc.subject.other	beetle	en
dc.subject.other	diatomite	en
dc.subject.other	insecticide	en
dc.subject.other	laboratory method	en
dc.subject.other	larva	en
dc.subject.other	mortality	en
dc.subject.other	pesticide resistance	en
dc.subject.other	temperature effect	en
dc.subject.other	tolerance	en
dc.subject.other	wheat	en
dc.subject.other	Central Europe	en
dc.subject.other	Denmark	en
dc.subject.other	Eurasia	en
dc.subject.other	Europe	en
dc.subject.other	France	en
dc.subject.other	Germany	en
dc.subject.other	Greece	en
dc.subject.other	Italy	en
dc.subject.other	Northern Europe	en
dc.subject.other	Portugal	en
dc.subject.other	Scandinavia	en
dc.subject.other	Southern Europe	en
dc.subject.other	United Kingdom	en
dc.subject.other	Western Europe	en
dc.subject.other	Coleoptera	en
dc.subject.other	Tenebrionidae	en
dc.subject.other	Tribolium (beetle)	en
dc.subject.other	Tribolium confusum	en
dc.subject.other	Triticum aestivum	en
dc.title	Influence of temperature on susceptibility of Tribolium confusum (Coleoptera: Tenebrionidae) populations to three modified diatomaceous earth formulations	en
heal.type	journalArticle	en
heal.identifier.primary	10.1653/0015-4040(2007)90[616:IOTOSO]2.0.CO;2	en
heal.publicationDate	2007	en
heal.abstract	The influence of temperature on the insecticidal effect of 3 commercially available modified diatomaceous earth (DE) formulations and their mixture against adults and larvae of Tribolium confusum Jacquelin du Val originating from different European geographical locations was evaluated in laboratory tests. The temperatures tested were 20, 25, and 30°C. The T. confusum populations (strains) originated from Greece, Italy, Portugal, United Kingdom, Germany, France, and Denmark. Mortality counts were carried out after 7 d of exposure of T. confusum individuals to DE-treated wheat. The 3 modified DEs tested were PyriSec, Insecto, Protect-It, and a mixture of the three. The dose rates tested were 500 and 1000 ppm. The strains from Portugal and France were the least susceptible to DEs, while the most susceptible one was the strain from the United Kingdom. The increase of temperature in many of the combinations tested increased the efficacy of DE formulations against both adults and larvae, but there were some cases in which temperature had no effect on DE efficacy. Moreover, adults were more tolerant than larvae to the DEs tested as well as to their mixture, regardless of the strain or temperature. The present study clearly indicates that there are serious variations in the efficacy of DEs against T. confusum individuals originating from different geographical regions, and several factors affect this efficacy, such as the type of formulation and the temperature level prevailing.	en
heal.journalName	Florida Entomologist	en
dc.identifier.issue	4	en
dc.identifier.volume	90	en
dc.identifier.doi	10.1653/0015-4040(2007)90[616:IOTOSO]2.0.CO;2	en
dc.identifier.spage	616	en
dc.identifier.epage	625	en