Factors affecting laboratory rioassays with diatomaceous earth on stored wheat: Effect of insect density, grain quantity, and cracked kernel containment

dc.contributor.author	Kavallieratos, NG	en
dc.contributor.author	Athanassiou, CG	en
dc.contributor.author	Mpakou, FD	en
dc.contributor.author	Mpassoukou, AE	en
dc.date.accessioned	2014-06-06T06:47:45Z
dc.date.available	2014-06-06T06:47:45Z
dc.date.issued	2007	en
dc.identifier.issn	00220493	en
dc.identifier.uri	http://dx.doi.org/10.1603/0022-0493(2007)100[1724:FALBWD]2.0.CO;2	en
dc.identifier.uri	http://62.217.125.90/xmlui/handle/123456789/3789
dc.subject	Diatomaceous earths	en
dc.subject	Laboratory bioassays	en
dc.subject	Rhyzopertha dominica	en
dc.subject	Sitophilus oryzae	en
dc.subject	Tribolium confusum	en
dc.subject.other	infusorial earth	en
dc.subject.other	insecticide	en
dc.subject.other	pyrethroid	en
dc.subject.other	animal	en
dc.subject.other	article	en
dc.subject.other	beetle	en
dc.subject.other	bioassay	en
dc.subject.other	comparative study	en
dc.subject.other	evaluation	en
dc.subject.other	insect control	en
dc.subject.other	laboratory	en
dc.subject.other	methodology	en
dc.subject.other	mortality	en
dc.subject.other	population density	en
dc.subject.other	wheat	en
dc.subject.other	Animals	en
dc.subject.other	Beetles	en
dc.subject.other	Biological Assay	en
dc.subject.other	Diatomaceous Earth	en
dc.subject.other	Insect Control	en
dc.subject.other	Insecticides	en
dc.subject.other	Laboratories	en
dc.subject.other	Mortality	en
dc.subject.other	Population Density	en
dc.subject.other	Pyrethrins	en
dc.subject.other	Triticum	en
dc.subject.other	Coleoptera	en
dc.subject.other	Hexapoda	en
dc.subject.other	Rhyzopertha dominica	en
dc.subject.other	Sitophilus oryzae	en
dc.subject.other	Tribolium (beetle)	en
dc.subject.other	Tribolium confusum	en
dc.subject.other	Triticum aestivum	en
dc.title	Factors affecting laboratory rioassays with diatomaceous earth on stored wheat: Effect of insect density, grain quantity, and cracked kernel containment	en
heal.type	journalArticle	en
heal.identifier.primary	10.1603/0022-0493(2007)100[1724:FALBWD]2.0.CO;2	en
heal.publicationDate	2007	en
heal.abstract	Laboratory bioassays were carried out to evaluate the effect of insect density (10, 30, 60, and 100 adults), wheat quantity (10, 30,60, and 100 g), and cracked kernel containment (5,15,30, and 50%) on the efficacy of diatomaceous earth (DE). Three beetle species, Sitophilus oryzae (L.), Rhyzopertha dominica (F.), and Tribolium confusum Jacquelin du Val, as well as two DE formulations, Insecto and SilicoSec, and one DE enhanced with pyrethrum, PyriSec (all commercially available) were tested. In the first two series of bioassays, the three DE formulations were applied at three dose rates, 500,1000 and 1,500 ppm. In the third series, the dose rates used were 500 and 1,000 ppm. Dead adults were counted 14 d later. For insect density, wheat quantity, and cracked kernel containment, significant differences were noted in mortality levels of the tested species among the three DE formulations and among doses. No significant differences were noted in the mortality levels among the four adult densities of any of the insects tested. The increase of wheat quantity used in the bioassays increased significantly adult mortality of T. confusum. The increase of cracked wheat containment decreased significantly adult mortality of S. oryzae. © 2007 Entomological Society of America.	en
heal.journalName	Journal of Economic Entomology	en
dc.identifier.issue	5	en
dc.identifier.volume	100	en
dc.identifier.doi	10.1603/0022-0493(2007)100[1724:FALBWD]2.0.CO;2	en
dc.identifier.spage	1724	en
dc.identifier.epage	1731	en