【摘 要】
：
为有效控制穗颈瘟的发生危害,积极探索稻瘟酰胺等药剂对水稻穗颈瘟的防治效果,并为稻瘟酰胺等药剂大面积推广应用提供科学依据,特进行了相关田间药效试验.结果表明,三环唑、
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为有效控制穗颈瘟的发生危害,积极探索稻瘟酰胺等药剂对水稻穗颈瘟的防治效果,并为稻瘟酰胺等药剂大面积推广应用提供科学依据,特进行了相关田间药效试验.结果表明,三环唑、井烯三环唑、甲硫成唑醇、稻瘟酰胺等药剂对水稻穗颈瘟均有一定的防效,但在20 1 4年穗颈瘟大发生的情况下,要注意加大用药量,并考虑用药2次,其中每667 m2用20％三环唑100 g, 20％井烯·三环唑150 g对水30 kg常规手动喷雾,在水稻破口5％时第1次用药,隔5-7 d再次用药,其防病效果可达95％左右.同时,防治水稻穗颈
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