创制农药噻唑锌对水稻细菌性病害的田间药效

噻唑锌是噻二唑类有机锌杀菌剂，对水稻细菌性病害有较好的防治效果。两次药后14d调查结果表明，对水稻白叶枯病，20％噻唑锌SC225—375g a．i．／hm^2防治效果均极显著高于20％叶枯唑WP300g a．i．/hm^2的防治效果；对水稻细菌性条斑病，20％噻唑锌SC 300～375g a．i．／hm^2防治效果极显著高于20％叶枯唑WP 300g a．i．／hm^2的防治效果，225g a．i．／hm^2防治效果与20％叶枯唑WP 300g a．i．／hm^2的防治效果相当。生产上使用20％噻唑锌SC，推荐剂量为225-375g a．i．／hm^2，间隔7d左右，连续施药两次，对水稻白叶枯病、水稻细菌性条斑病均有较好的防治效果。

Efficacy of the New Creating Pesticide Zn Thiazole against Bacteria Disease

Zn thiazole is a thiazole organic zinc fungicide with highly activity to rice bacteria disease. Investigation data obtained at 14 days after applied second time indicated that the efficacy of Zn thiazole 20% SC applied at 225-375 g a.i./ha were higher than that of bismerthlazol 20% WP applied at 300 g a.i./ha on the prevention and cure rice bacterial leaf blight at high significance levels. On the prevention and cure rice bacterial leaf streak, the efficacy of Zn thiazole 20% SC at 300-375 g a.i./ha were higher than that of bismerthlazol 20% WP at 300 g a.i./ha at high significance levels. There wasn't significant difference between the efficacy of Zn thiazole 20% SC at 225 g a.i./ha and bismerthlazol 20% WP at 300 g a.i./ha. It is suggested that Zn thiazole 20% SC applied at recommended dosage 225-375 g a.i./ha and 2 times at 7 days interval would provide a good efficacy of rice bacterial leaf blight and rice bacterial leaf streak.