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The efficacy of novel diamide insecticides in Grapholita molesta suppression and their residues in peach fruits

机译:新型酰胺杀虫剂在Grapholita Molesta抑制和桃果实中的残留物的疗效

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The oriental fruit moth [(Grapholita molesta (Busck, 1916)] represents one of the most significant and destructive pests of peaches in Serbia and worldwide. Its susceptibility to the novel diamide insecticides, cyantraniliprole and chlorantraniliprole, was assessed in this article. The dissipation dynamics and behaviour of these insecticides in the peach fruit were also determined. Field trials were carried out at two localities in the Republic of Serbia (?erevi?, Mala Remeta), according to standard EPPO methods. The cyantraniliprole (100 g a. i./l, SE) and chlorantraniliprole (200 g a. i./l, SC) based products were foliar applied at rate of 0.6 and 0.2 l/ha, respectively. The efficacy of the applied products was evaluated by counting the number of fruits damaged by the G. molesta larvae. The high efficacy of cyantraniliprole (89.5–94.1%) and chlorantraniliprole (93.5–95.6%) was achieved at both localities. Right after the drying of the deposit, the concentration of cyantraniliprole in the peach fruits was at the EU maximum residue level (MRL) of 1.5 mg/kg, while the MRL level of 1 mg/kg was achieved after seven days (0.95 mg/kg) for chlorantraniliprole. The cyantraniliprole and chlorantraniliprole half-life dissipation in the peach fruit were 2.50 and 3.15 days. It can be concluded that the high efficacy of the researched insecticides is a good indicator of G. molesta susceptibility in peach orchards.
机译:东方果蝇[(Grapholita Molesta(Busck,1916)]代表塞尔维亚和全球的桃子最重要和最具破坏性的害虫之一。在本文中评估了对新型酰胺杀虫剂,树木植物和氯苯胆甙的易感性。耗散也确定了这些杀虫剂中这些杀虫剂的动态和行为。根据标准EPPO方法,在塞尔维亚共和国共和国的两个地方进行了现场试验。天竺葵(100克AI / L. ,Se)和氯苯胆润(200g AI / L,SC)的产品分别以0.6和0.2L / ha的速率施加。通过计算由G损坏的水果数量来评估所应用的产物的功效。 Molesta幼虫。在两个地方实现了天竺葵(89.5-94.1%)和氯苯胆胆油(93.5-95.6%)的高疗效。在沉积物干燥后,浓度是天麻脂桃子水果在1.5mg / kg的欧盟最大残留水平(MRL),而MRL水平为1mg / kg以七天(0.95mg / kg)用于氯苯胆糖醇。桃树水果中的半月唑和氯苯胆透源耗散2.50和3.15天。可以得出结论,研究杀虫剂的高效力是桃子果园G. Molesta易感性的良好指标。

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