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Ethanedinitrile as a Fumigant for Lasioderma serricorne (Coleoptera: Anobiidae), and Rhyzopertha dominica (Coleoptera: Bostrichidae): Toxicity and Mode of Action.
Ramadan, Gomaa R M; Zhu, Kun Yan; Abdelgaleil, Samir A M; Shawir, Mohamed S; El-Bakary, Ahmed S; Edde, Peter A; Phillips, Thomas W.
Afiliação
  • Ramadan GRM; Department of Entomology, Kansas State University, Manhattan., KS.
  • Zhu KY; Department of Pesticide Chemistry and Technology, Faculty of Agriculture, 21545-El-Shatby, Alexandria University, Alexandria, Egypt.
  • Abdelgaleil SAM; Department of Entomology, Kansas State University, Manhattan., KS.
  • Shawir MS; Department of Pesticide Chemistry and Technology, Faculty of Agriculture, 21545-El-Shatby, Alexandria University, Alexandria, Egypt.
  • El-Bakary AS; Department of Pesticide Chemistry and Technology, Faculty of Agriculture, 21545-El-Shatby, Alexandria University, Alexandria, Egypt.
  • Edde PA; Department of Pesticide Chemistry and Technology, Faculty of Agriculture, 21545-El-Shatby, Alexandria University, Alexandria, Egypt.
  • Phillips TW; Altria Client Services, Richmond, VA.
J Econ Entomol ; 113(3): 1519-1527, 2020 06 06.
Article em En | MEDLINE | ID: mdl-31901160
This study evaluated the fumigant ethanedinitrile (EDN) against the cigarette beetle, Lasioderma serricorne, and phosphine-resistant and susceptible lesser grain borer, Rhyzopertha dominica, life stages under laboratory conditions. Eggs of both species were the most susceptible stage to EDN. EDN is, therefore, a promising alternative because eggs are generally tolerant to most common fumigants. Lasioderma serricorne eggs were the most susceptible with an LC50 estimated of 50.4 ppm, followed by adults, pupae and larvae with LC50 values of 160.2, 192.5, and 446.6 ppm, respectively, after 24-h exposure at 25°C. Eggs of phosphine-susceptible (LC50 = 11.2 ppm) and resistant (LC50 = 12.0 ppm) R. dominica strains were more susceptible to EDN than were adults of both strains, with LC50 values of 27.7 and 36.0 ppm, respectively. Lasioderma serricorne mixed life stage cultures were completely controlled at concentrations ≥2,000 ppm at 24 h. Fumigation with 600 ppm was enough to suppress adult emergence in the case of the phosphine-susceptible R. dominica strain (USDA), while an average of only 4.0 adults emerged from the phosphine-resistant R. dominica strain (Belle Glade) compared with 514.3 adults in the control. Lasioderma serricorne was more tolerant to EDN than both R. dominica strains. EDN caused 61.8 and 68.2 % inhibition of R. dominica (USDA) cytochrome c oxidase activity at concentrations of 0.0038 and 0.0076 mM in vitro, respectively, and it did not inhibit its activity in the case of an in vivo assay. These results suggest that cytochrome c oxidase may not be the main target for EDN toxicity.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Besouros / Inseticidas Limite: Animals País/Região como assunto: Caribe / Caribe ingles / Dominica Idioma: En Revista: J Econ Entomol Ano de publicação: 2020 Tipo de documento: Article País de publicação: Reino Unido
Texto completo
Adicionar na Minha BVS
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XML
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Besouros / Inseticidas Limite: Animals País/Região como assunto: Caribe / Caribe ingles / Dominica Idioma: En Revista: J Econ Entomol Ano de publicação: 2020 Tipo de documento: Article País de publicação: Reino Unido