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

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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


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