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Residual bioactivity of insect growth regulators against Sitophilus oryzae (L.) in wheat grain

By: Material type: ArticleArticleLanguage: En Publication details: 1988ISSN:
  • 0340-7330
Subject(s): DDC classification:
  • 88-092922
 In: Anzeiger fuer Schaedlingskunde Pflanzenschutz Umweltschutz v. 61, no. 3, p. 56-6088-092922Summary: Chlorfluazuron, flufenoxuron and XRD-473 were applied to wheat grain as water emulsion at doses of 0.5, 5 and 25 ppm AI. The residual bioactivity and its ability to control infestation of the rice weevil, Sitophilus oryzae (L.) was bioassayed at monthly intervals during 8 months storage period posttreatment. All IGRs at the tested doses produced moderate direct toxicity of 18-56 per cent to parent adult weevils, exposed immediately after treatment, which decreased remarkably to 0-18 per cent for adults exposed to IGRs residues in wheat grain at 3 months posttreatment. Data reveals also that all compounds at 0.5-25 ppm and in particular XRD-473 affected
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3 tables; 13 ref. Summaries (De, En)

Chlorfluazuron, flufenoxuron and XRD-473 were applied to wheat grain as water emulsion at doses of 0.5, 5 and 25 ppm AI. The residual bioactivity and its ability to control infestation of the rice weevil, Sitophilus oryzae (L.) was bioassayed at monthly intervals during 8 months storage period posttreatment. All IGRs at the tested doses produced moderate direct toxicity of 18-56 per cent to parent adult weevils, exposed immediately after treatment, which decreased remarkably to 0-18 per cent for adults exposed to IGRs residues in wheat grain at 3 months posttreatment. Data reveals also that all compounds at 0.5-25 ppm and in particular XRD-473 affected

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