Evaluating the Control Efficacy of Nine Fungicides Against Wheat Powdery Mildew in a Field Experiment
JIANG Qing
GENG Hui-hui
YANG Ben-xiang
QIN Jian-hua
Abstract：In this research,nine fungicides were evaluated for their control efficacy against wheat powdery mildew in a field experiment. As a result,30%kresoxim-methyl SC (40 mL/667 m2 ),22.5%picoxystrobin SC (40 mL/667 m2 ),and 42.8%fluopyram-triflox-ystrobin SC(15 mL/667 m2)all achieved greater control efficacy against wheat powdery mildew than 17.2%pyraclostrobin-epoxicon-azole SC (50 mL/667 m2 ),whose control efficacy also reached a significant level of 88.29%.Furthermore,30%kresoxim-methyl SC (40 mL/667 m2 )and 22.5% picoxystrobin SC (40 mL/667 m2 )showed longer duration of efficacy than the other tested fungicides. In comparison,20% triazolone EC (50 mL/667 m2 )had substantially lower control efficacy,which stood at 49.44% at 15 day post treatment (dpt)and then fell to 34.89% at 30 dpt.Therefore,we recommend that 30% kresoxim-methyl SC (40 mL/667 m2 )and 22.5% picoxystrobin SC (40 mL/667 m2 )should be used to replace triazolone,or be applied alternately with other fungicides for con-trolling wheat powdery mildew.
Keywords：Wheat powdery mildewFungicidesControl efficacy
Publication Date：2016-07-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 52-54 )