多种药剂防治水稻纹枯病等3种病害药效试验

为了有效防治水稻纹枯病、稻曲病和穗瘟病,试验安排了9个处理,结果表明：水稻拔节期,30%苯醚甲环唑.丙环唑EC、12.5%井.蜡芽AS和75%戊唑醇.肟菌酯WG对纹枯病防治效果均达80%以上;叶枕平期用12.5%井.蜡芽AS＋75%三环唑WP防治纹枯病的防效为69.4%,拔节期用12.5%井.蜡芽,叶枕平期再施75%戊唑醇.肟菌酯WG防治稻曲病的效果为58.94%。

The Efficacy Trials of Three Rice Diseases by Variety of Chemical Control

In order to effectively control rice sheath blight, false smut and panicle blast, nine processing were arranged in this test.The results showed that： in rice jointing stage, the control effect of sheath blight by 30% difenoconazole ＂propiconazole, 12.5% validamycin＋bacilas cerens and 75% tebuconazole＇trifloxystrobin were higher than 80%. In phyllula horizontality stage, the control effect of sheath blight by 12.5%validamycin＋bacilas cerens and 75% tricyclazole was 69.4%. We used 12.5% validamycin＋bacilas cerens in jointing stage ,then used 75% tebuconazoleotrifloxystrobin in phyllula horizontality stage, the control effect of false smut was 58.94%.