Impact of geochemical composition of diatomaceous earth on its insecticidal activity against adults of Sitophilus oryzae (L.) (Coleoptera: Curculionidae)

dc.contributor.author	Rojht, H	en
dc.contributor.author	Horvat, A	en
dc.contributor.author	Athanassiou, CG	en
dc.contributor.author	Vayias, BJ	en
dc.contributor.author	Tomanovic, Z	en
dc.contributor.author	Trdan, S	en
dc.date.accessioned	2014-06-06T06:50:32Z
dc.date.available	2014-06-06T06:50:32Z
dc.date.issued	2010	en
dc.identifier.issn	16124758	en
dc.identifier.uri	http://dx.doi.org/10.1007/s10340-010-0313-6	en
dc.identifier.uri	http://62.217.125.90/xmlui/handle/123456789/5056
dc.subject	Diatomaceous earth	en
dc.subject	Geochemical composition	en
dc.subject	Inert dusts	en
dc.subject	Rice weevil	en
dc.subject	SilicoSec®	en
dc.subject	Stored wheat	en
dc.subject.other	bioassay	en
dc.subject.other	chemical composition	en
dc.subject.other	diatomite	en
dc.subject.other	insecticide	en
dc.subject.other	laboratory method	en
dc.subject.other	mortality	en
dc.subject.other	pest control	en
dc.subject.other	pest species	en
dc.subject.other	wheat	en
dc.subject.other	Greece	en
dc.subject.other	Serbia	en
dc.subject.other	Slovenia	en
dc.subject.other	Coleoptera	en
dc.subject.other	Curculionidae	en
dc.subject.other	Sitophilus oryzae	en
dc.subject.other	Triticum aestivum	en
dc.title	Impact of geochemical composition of diatomaceous earth on its insecticidal activity against adults of Sitophilus oryzae (L.) (Coleoptera: Curculionidae)	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/s10340-010-0313-6	en
heal.publicationDate	2010	en
heal.abstract	Laboratory experiments were done to determine the effect of geochemical composition of diatomaceous earth (DE) on insecticidal activity of DE against adults of the rice weevil, Sitophilus oryzae (L.) (Coleoptera: Curculionidae). Samples of DE were mined from DE-deposits in Slovenia, Greece, and Serbia. In addition, a commercially available DE formulation (SilicoSec®) was used in the tests and served as a positive control. The bioassays were carried out at temperatures 20, 25, and 30°C, relative humidity levels of 55 and 75%, and at application rates of 100, 300, 500, and 900 ppm. Adult mortality was recorded after 7, 14, and 21 days of exposure. Prior to bioassays with S. oryzae, the geochemical composition of all DEs that were used in the tests was determined by whole rock ICP geochemical analyses. Silica (in the form of SiO 2 or opal-A) was the DE ingredient that was significantly correlated with efficacy in most of the bioassays. Some weak positive correlation was observed between S. oryzae mortality and MnO or CaO content. All significant correlations between mortality and Al 2O 3, Fe 2O 3, K 2O, TiO 2, Cr 2O 3, P 2O 5, and MgO content were negative, while correlation between Na 2O content and mortality was generally not significant. © 2010 Springer-Verlag.	en
heal.journalName	Journal of Pest Science	en
dc.identifier.issue	4	en
dc.identifier.volume	83	en
dc.identifier.doi	10.1007/s10340-010-0313-6	en
dc.identifier.spage	429	en
dc.identifier.epage	436	en