Insecticidal effect of diatomaceous earth against three species of stored-product psocids on maize, rice, and wheat

dc.contributor.author	Athanassiou, CG	en
dc.contributor.author	Arthur, FH	en
dc.contributor.author	Opit, GP	en
dc.contributor.author	Throne, JE	en
dc.date.accessioned	2014-06-06T06:49:26Z
dc.date.available	2014-06-06T06:49:26Z
dc.date.issued	2009	en
dc.identifier.issn	00220493	en
dc.identifier.uri	http://dx.doi.org/10.1603/029.102.0435	en
dc.identifier.uri	http://62.217.125.90/xmlui/handle/123456789/4599
dc.subject	Grains	en
dc.subject	Inert dusts	en
dc.subject	Lepinotus reticulatus	en
dc.subject	Liposcelis entomophila	en
dc.subject	Liposcelts decolor	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	evaluation	en
dc.subject.other	insect	en
dc.subject.other	insect control	en
dc.subject.other	maize	en
dc.subject.other	methodology	en
dc.subject.other	mortality	en
dc.subject.other	rice	en
dc.subject.other	species difference	en
dc.subject.other	wheat	en
dc.subject.other	Animals	en
dc.subject.other	Diatomaceous Earth	en
dc.subject.other	Insect Control	en
dc.subject.other	Insecticides	en
dc.subject.other	Insects	en
dc.subject.other	Mortality	en
dc.subject.other	Oryza sativa	en
dc.subject.other	Species Specificity	en
dc.subject.other	Triticum	en
dc.subject.other	Zea mays	en
dc.subject.other	Lepinotus reticulatus	en
dc.subject.other	Liposcelis decolor	en
dc.subject.other	Liposcelis entomophila	en
dc.subject.other	Psocoptera	en
dc.subject.other	Triticum aestivum	en
dc.subject.other	Trogiidae	en
dc.subject.other	Zea mays	en
dc.title	Insecticidal effect of diatomaceous earth against three species of stored-product psocids on maize, rice, and wheat	en
heal.type	journalArticle	en
heal.identifier.primary	10.1603/029.102.0435	en
heal.publicationDate	2009	en
heal.abstract	We evaluated the efficacy of three diatomaceous earth (DE) formulations, Dryacide, Protect-It, and Insecto, against three Psocoptera species, Liposcelis entomophila (Enderlein) (Liposcelididae), Lepinotus reticulatus Enderlein (Trogiidae), and Liposcelis decolor (Pearman), in the laboratory. Bioassays were conducted in three grain commodities, wheat, rice and maize, at 30°C and 75% RH, and the DEs were applied at the recommended dose rates of 1,000, 400, and 500 ppm for Dryacide, Protect-It, and Insecto, respectively. Differences in adult mortality were found among grains and DEs for L. entomophila and L. reticulatus, but these trends were not consistent for all combinations tested. Type of grain and DE did not affect L. decolor mortality significantly. Moreover, mortality increased with increasing exposure time for L. entomophila and L. reticulatus, but there was no effect of exposure time on L. decolor. After 7 d of exposure, mortalities of L. entomophila, L. reticulatus, and L. decolor were 56,55, and 40%, respectively, and the respective mortality levels after 14 d were 63, 71, and 42%. Progeny production after 30 d was significantly suppressed for all species in the treated grains. However, progeny production was still high in the treated grains and reached 54, 42, and 76 individuals/10 g of grain for L. entomophila, L. reticulatus, and L. decolor, respectively. Progeny production did not vary with commodity. Our results suggest that DEs, when used alone, will not provide effective control of psocids.	en
heal.journalName	Journal of Economic Entomology	en
dc.identifier.issue	4	en
dc.identifier.volume	102	en
dc.identifier.doi	10.1603/029.102.0435	en
dc.identifier.spage	1673	en
dc.identifier.epage	1680	en