Diatomaceous earths enhance the insecticidal effect of bitterbarkomycin against stored-grain insects

dc.contributor.author	Athanassiou, CG	en
dc.contributor.author	Korunic, Z	en
dc.contributor.author	Vayias, BJ	en
dc.date.accessioned	2014-06-06T06:49:19Z
dc.date.available	2014-06-06T06:49:19Z
dc.date.issued	2009	en
dc.identifier.issn	02612194	en
dc.identifier.uri	http://dx.doi.org/10.1016/j.cropro.2008.09.012	en
dc.identifier.uri	http://62.217.125.90/xmlui/handle/123456789/4526
dc.subject	Bitterbarkomycin	en
dc.subject	Cryptolestes ferrugineus	en
dc.subject	Diatomaceous earth	en
dc.subject	Sitophilus zeamais	en
dc.subject	Tribolium castaneum	en
dc.subject.other	adult	en
dc.subject.other	beetle	en
dc.subject.other	bioassay	en
dc.subject.other	biological control	en
dc.subject.other	diatomite	en
dc.subject.other	dicotyledon	en
dc.subject.other	insecticide	en
dc.subject.other	laboratory method	en
dc.subject.other	mortality	en
dc.subject.other	plant extract	en
dc.subject.other	wheat	en
dc.subject.other	Celastrus	en
dc.subject.other	Celastrus angulatus	en
dc.subject.other	Coleoptera	en
dc.subject.other	Cryptolestes ferrugineus	en
dc.subject.other	Cucujidae	en
dc.subject.other	Curculionidae	en
dc.subject.other	Hexapoda	en
dc.subject.other	Sitophilus zeamais	en
dc.subject.other	Tenebrionidae	en
dc.subject.other	Tribolium (beetle)	en
dc.subject.other	Tribolium castaneum	en
dc.subject.other	Triticum aestivum	en
dc.subject.other	Zea mays	en
dc.title	Diatomaceous earths enhance the insecticidal effect of bitterbarkomycin against stored-grain insects	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.cropro.2008.09.012	en
heal.publicationDate	2009	en
heal.abstract	The insecticidal effect of bitterbarkomycin (BBM), a plant extract from the roots of the plant Celastrus angulatus, was evaluated as a stored-grain protectant when used either alone or in combination with diatomaceous earth (DE). Bioassays were carried out in the laboratory, against adults of the maize weevil, Sitophilus zeamais (Motsch.) (Coleoptera: Curculionidae), the red flour beetle, Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae) and the rusty grain beetle, Cryptolestes ferrugineus (Steph.) (Coleoptera: Cucujidae). Quantities of wheat were treated with five dose rates of BBM, ranging from 0.0375 to 0.0875 ppm, or five doses of DE, ranging from 71.25 to 166.66 ppm, and five dose rates of their combination, the formulation DEBBM. Mortality was evaluated after 5, 7 and 14 d of exposure in the treated wheat, while after 50 d the capacity for progeny production was also evaluated. For S. zeamais, mortality on wheat treated with BBM or DEBBM was higher than that of DE alone, in all exposure intervals tested. After 14-d exposure >90% of the exposed individuals of this species were dead at doses ≥125 ppm of DEBBM. For T. castaneum, with the exception of few cases, mortality caused by DEBBM was significantly higher than that caused by DE or BBM. After 14 d of exposure, mortality was >90% on wheat treated with ≥100 ppm of DEBBM. C. ferrugineus was the most susceptible species from the three species tested, and mortality was 90% after 5 d of exposure, even at the lowest DEBBM dose. The increase of dose significantly decreased progeny production in the treated substrate, but the higher rate of this reduction was noted for DEBBM. Our results indicate that DEBBM can be used with success at low dose rates against the three species tested in stored-grain commodities. © 2008 Elsevier Ltd. All rights reserved.	en
heal.journalName	Crop Protection	en
dc.identifier.issue	2	en
dc.identifier.volume	28	en
dc.identifier.doi	10.1016/j.cropro.2008.09.012	en
dc.identifier.spage	123	en
dc.identifier.epage	127	en