Information on performance of sequential treatments of quizalofop-P-ethyl with florpyrauxifen-benzyl on rice is lacking. Field studies were conducted in 2017 and 2018 in Stoneville, MS, to evaluate sequential timings of quizalofop-P-ethyl with florpyrauxifen-benzyl included in preflood treatments of rice. Quizalofop-P-ethyl treatments were no quizalofop-P-ethyl; sequential applications of quizalofop-P-ethyl at 120 g ha−1 followed by (fb) 120 g ai ha−1 applied to rice in the 2- to 3-leaf (EPOST) fb the 4-leaf to 1-tiller (LPOST) growth stages or LPOST fb 10 d after flooding (PTFLD); quizalofop-P-ethyl at 100 g ha−1 fb 139 g ha−1 EPOST fb LPOST or LPOST fb PTFLD; quizalofop-P-ethyl at 139 g ha−1 fb 100 g ha−1 EPOST fb LPOST and LPOST fb PTFLD; and quizalofop-P-ethyl at 85 g ha−1 fb 77 g ha−1 fb 77 g ha−1 EPOST fb LPOST fb PTFLD. Quizalofop-P-ethyl was applied alone and in mixture with florpyrauxifen-benzyl at 29 g ai ha−1 LPOST. Visible rice injury 14 d after PTFLD (DA-PTFLD) was no more than 3%. Visible control of volunteer rice (‘CL151’ and ‘Rex’) 7 DA-PTFLD was similar and at least 95% for each quizalofop-P-ethyl treatment. Barnyardgrass control with quizalofop-P-ethyl at 120 fb 120 g ha−1 LPOST fb PTFLD was greater (88%) in mixture with florpyrauxifen-benzyl. The addition of florpyrauxifen-benzyl to quizalofop-P-ethyl increased rough rice yield when quizalofop-P-ethyl was applied at 100 g ha−1 fb 139 g ha−1 EPOST fb LPOST. Sequential applications of quizalofop-P-ethyl at 120 g ha−1 fb 120 g ha−1 EPOST fb LPOST, 100 g ha−1 fb 139 g ha−1 EPOST fb LPOST, or 139 g ha−1 fb 100 g ha−1 EPOST fb LPOST controlled grass weed species. The addition of florpyrauxifen-benzyl was not beneficial for grass weed control. However, because quizalofop-P-ethyl does not control broadleaf weeds, florpyrauxifen-benzyl could provide broad-spectrum weed control in acetyl coenzyme A carboxylase–resistant rice.

中文翻译：

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抗乙酰辅酶A羧化酶水稻中喹禾灵和氟吡草醚的序贯应用评价

缺乏关于用氟吡唑醚苄基对苯喹唑啉进行序贯处理在水稻上的表现的信息。2017 年和 2018 年在密西西比州斯通维尔进行了田间研究，以评估在水稻的洪水前处理中奎扎洛草酯与 florpyrauxifen-benzyl 的顺序时间。Quizalofop-P-ethyl处理没有quizalofop-P-ethyl；在 120 g ha 的情况下连续施用 quizalofop-P-ethyl-1其次是 (fb) 120 g ai ha-1适用于 2 至 3 叶 (EPOST) fb 4 叶至 1 分蘖 (LPOST) 生长阶段的水稻或 LPOST fb 淹水后 10 d (PTFLD)；100 克/公顷的精喹禾灵-1FB 139 克公顷-1EPOST fb LPOST 或 LPOST fb PTFLD；139 克/公顷的精喹禾灵-1FB 100 克公顷-1EPOST fb LPOST 和 LPOST fb PTFLD；和 85 g ha 的精喹禾灵-1FB 77 克公顷-1FB 77 克公顷-1EPOST fb LPOST fb PTFLD。Quizalofop-P-ethyl 单独使用或与 florpyrauxifen-benzyl 混合使用，用量为 29 g a i ha-1邮局。PTFLD后14 d可见水稻损伤（DA-PTFLD）不超过3%。志愿水稻（'CL151' 和'Rex'）7 DA-PTFLD 的可见控制是相似的，并且对于每种quizalofop-P-ethyl 处理至少为95%。用 120 fb 120 g ha 的 quizalofop-P-ethyl 控制稗草-1LPOST fb PTFLD 在与 florpyrauxifen-benzyl 的混合物中更大（88%）。在 100 g ha 施用喹唑啉草酮时，向喹禾灵添加氟吡草醚 - 苄基可提高糙米产量-1FB 139 克公顷-1EPOST fb LPOST。在 120 g ha 的情况下，quizalofop-P-ethyl 的顺序应用-1FB 120 克公顷-1EPOST fb LPOST，100 克公顷-1FB 139 克公顷-1EPOST fb LPOST，或 139 g ha-1FB 100 克公顷-1EPOST fb LPOST 控制的杂草种类。添加氟吡草醚-苄基不利于禾本科杂草的控制。然而，由于喹禾灵不能控制阔叶杂草，氟吡草醚苄基可以在乙酰辅酶 A 羧化酶抗性水稻中提供广谱杂草控制。