3种杀菌剂防治梨树黑星病田间药效试验  

Field Efficacy Test of Three Fungicides on Controlling Pear Scab

作　　者：戴争[1] 张博[1] 赵亚[1] 赵玖华[1] 尚佑芬[1] 王升吉[1] 

机构地区：[1]山东省农业科学院植物保护研究所/山东省植物病毒学重点实验室,山东济南250100

出　　处：《山东农业科学》2011年第12期70-72,共3页Shandong Agricultural Sciences

摘　　要：田间小区试验结果表明,40%腈菌唑、45%苯醚甲环唑.代森锰锌和50%烯唑醇防治梨树黑星病效果显著,在黑星病发生初期用药,使用剂量分别为6 667倍(60 a.i.mg/kg)、2 000～2 200倍(204.5～225.0 a.i.mg/kg)和10 000～12 500倍(40.0～50.0 a.i.mg/kg),对叶部和果实病害的防治效果均可达75%以上,是目前防治梨树黑星病的首选药剂。In this test,40% myclobutanil suspension,45% difenoconazole microemulsion mancozeb and 50% diniconazolc were used to control pear scab in field.The results showed that their control effect was significant.At the initial occurrence stage of pear scab,using 60,204.5~225.0 and 40.0~50.0 a.i.mg/kg of the three fungicides respectively could let the control effect reach to more than 75%.Therefore,they were the ideal fungicides against the pear scab.

关 键 词：梨黑星病 化学防治 药效试验 

分 类 号：S436.612.13[农业科学—农业昆虫与害虫防治]