15%麦极WP对日本看麦娘等麦田恶性禾本科杂草的防治效果

Efficacy of 15% Clodinafop-propargyl to Alopecurus Japonicus Steud and others of Gramineous Weeds in Wheat Field

采用盆栽方法,研究了15%麦极WP对日本看麦娘、野燕麦、雀麦和节节麦4种麦田恶性禾本科杂草的防治效果。结果表明：麦极300～450 g/hm^2处理能有效控制2～6叶期的日本看麦娘和野燕麦,但对节节麦和雀麦防效不大。经济用量为300 g/hm^2,对野燕麦和日本看麦娘的防治效果可分别达到100%和93.2%以上。

The efficacy of 15% clodinafop-propargyl to Alopecuras japonicas Steud, Avenafatua L , Bromas japonicas Thunb and Aegilops taaschii Coss in wheat fields were evaluated. 15% clodinafop-propargyl 300-450 g/hm^2 have a good control to 2-6 leaf stages of Alopecuras japonicas Steud and Avenafatua L. , but have no effect to Bromus japonicus Thunband and Aegilops taaschii Coss. The most optimum dosage of 15% clodinafop-propargyl is 300 g/hm^2. Efficacy of Clodinafop-propargyl to Avenafatua L and Alopecurusjaponicas Steud is 100% and more than 93.2%.