Insecticidal effect of three diatomaceous earth formulations against adults of Sitophilus oryzae (Coleoptera: Curculionidae) and Tribolium confusum (Coleoptera: Tenebrionidae) on oat, rye, and triticale

dc.contributor.author	Athanassiou, CG	en
dc.contributor.author	Kavallieratos, NG	en
dc.contributor.author	Andris, NS	en
dc.date.accessioned	2014-06-06T06:46:02Z
dc.date.available	2014-06-06T06:46:02Z
dc.date.issued	2004	en
dc.identifier.issn	00220493	en
dc.identifier.uri	http://62.217.125.90/xmlui/handle/123456789/2766
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-12344271407&partnerID=40&md5=5c878750d9f9129b9a77856802fb2ef2	en
dc.subject	Confused flour beetle	en
dc.subject	Diatomaceous earth	en
dc.subject	Rice weevil	en
dc.subject	Stored grain	en
dc.subject.other	infusorial earth	en
dc.subject.other	insecticide	en
dc.subject.other	animal	en
dc.subject.other	article	en
dc.subject.other	cereal	en
dc.subject.other	oat	en
dc.subject.other	physiology	en
dc.subject.other	rye	en
dc.subject.other	Tribolium	en
dc.subject.other	weevil	en
dc.subject.other	Animals	en
dc.subject.other	Avena sativa	en
dc.subject.other	Cereals	en
dc.subject.other	Diatomaceous Earth	en
dc.subject.other	Insecticides	en
dc.subject.other	Secale cereale	en
dc.subject.other	Tribolium	en
dc.subject.other	Weevils	en
dc.subject.other	Coleoptera	en
dc.subject.other	Curculionidae	en
dc.subject.other	Secale cereale	en
dc.subject.other	Sitophilus oryzae	en
dc.subject.other	Tenebrionidae	en
dc.subject.other	Tribolium confusum	en
dc.subject.other	Triticosecale	en
dc.title	Insecticidal effect of three diatomaceous earth formulations against adults of Sitophilus oryzae (Coleoptera: Curculionidae) and Tribolium confusum (Coleoptera: Tenebrionidae) on oat, rye, and triticale	en
heal.type	journalArticle	en
heal.publicationDate	2004	en
heal.abstract	Bioassays were conducted in the laboratory to assess the effect of the diatomaceous earth (DE) formulations Insecto, SilicoSec, and PyriSec, on stored oat, rye, and triticale, against adults of the rice weevil, Sitophilus oryzae (L.), and the confused flour beetle, Tribolium confusum Jacquelin du Val. The DEs were tested at three dose rates, 0.75, 1, and 1.5 g of DE/kg of grain. Adults of the two aforementioned species were exposed to all combinations of grain-formulation-dose rate, at 26°C and 60% RH. Mortality in DE-treated commodities was recorded after 24 h, 48 h, 7 d, and 14 d of exposure for S. oryzae and T. confusum and after 21 d for T. confusum. In S. oryzae, adult mortality was almost 100% after 7 d of exposure in all three grains examined. The mortality of T. confusum adults in DE-treated grains did not reach 100%, even after 21 d of exposure. Generally, the application of DE in rye caused higher adult mortality of T. confusum than in the other two products. All three dose rates tested provided the same mortality level of S. oryzae adults after 7 d of exposure. In contrast, 1.5 g of DE resulted in significant higher adult mortality of T. confusum, in comparison with the other dose rates, even after 21 d of exposure. All formulations were equally effective after 7 d of exposure against S. oryzae, but at 48 h of exposure, PyriSec caused significantly higher mortality than the other two formulations. For both species, progeny production in the treated grains was significantly reduced in comparison with the untreated grains, whereas significant differences were noted among commodities, formulations, and dose rates. No progeny were recorded in the treated rye for either species or in the treated triticale for S. oryzae.	en
heal.journalName	Journal of Economic Entomology	en
dc.identifier.issue	6	en
dc.identifier.volume	97	en
dc.identifier.spage	2160	en
dc.identifier.epage	2167	en