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首页> 外文期刊>Pesticide Research Journal >Dissipation Studies of P-cyfluthrin and Imidacloprid as Combination Product in Brinjal (Solanum melongena L.)
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Dissipation Studies of P-cyfluthrin and Imidacloprid as Combination Product in Brinjal (Solanum melongena L.)

机译：对对氯氟菊酯和吡虫啉作为组合产品在茄子中的耗散研究

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摘要

With a view to study the dissipation of individual insecticide of an effective combination product β-cyfluthrin (9%) and imidacloprid (21%) in brinjal, field experiment was conducted during Rabi 2007-08. The product was applied as foliar spray thrice at weekly interval during flowering stage @ 18 + 42 g a.i. ha~(-1) and 36+84 g a.i. ha~(-1). Immediately afterapplication β-cyfluthrin in brinjal fruit was detected below its limit of quantitation (LOQ) at the standard dose. However, at higher dose the initial deposit of 0.037 μg g~(-1) reached below LOQ on the third day. The corresponding levels for imidacloprid in brinjal fruits one hour after application were 0.035 and 0.062 μg g~(-1), respectively, which reached below its LOQ on the 5th and 10th day. The half-life (DT_(50)) of imidacloprid in brinjal fruits was 1.67 and 3.82 days at standard and higher dose. Nonetheless, the half-life value of 1.83 days for β-cyfluthrin was obtained only at higher dose. The content of β-cyfluthrin being only 30% of the active ingredient in the formulation coupled with its non-systemic nature could have resulted in low levels of its residues in brinjal fruits.
机译：为了研究单独的杀虫剂有效结合产物β-氟氰菊酯（9％）和吡虫啉（21％）在茄子中的消散，在拉比2007-08期间进行了田间试验。该产品在开花期以18 + 42 g a.i.每周间隔三次作叶面喷洒。 ha〜（-1）和36 + 84 g a.i. ha〜（-1）。施用后立即在茄子果实中检测到β-氟氰菊酯在标准剂量下的定量限（LOQ）以下。然而，在较高剂量下，第三天的初始沉淀量为0.037μgg〜（-1）低于LOQ。茄子果实施用一小时后吡虫啉的相应水平分别为0.035和0.062μgg〜（-1），在第5天和第10天达到其最低定量。在标准和更高剂量下，吡虫啉在茄子果实中的半衰期（DT_（50））为1.67和3.82天。然而，仅在较高剂量下获得β-氟氰菊酯的半衰期值为1.83天。 β-氟氰菊酯的含量仅为制剂中活性成分的30％，加上其非系统性，可能导致茄子果实中残留量低。

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