毒氟磷防治南方水稻黑条矮缩病药效研究  

The Study of Efficiency of Dufulin Against Southern Rice Black-streaked Dwarf Virus

作　　者：陈卓[1,2] 李国君 范会涛[1,2] 刘家驹[1,2] 毕亮[1,2] 杨松[1,2] 宋宝安[1,2] 胡德禹[1,2] 

机构地区：[1]贵州大学绿色农药与农业生物工程国家重点实验室培育基地,贵州贵阳550025 [2]贵州大学绿色农药与农业生物工程教育部重点实验室,贵州贵阳550025 [3]广东省雷州市植保植检站,广东雷州524200

出　　处：《中国农学通报》2011年第18期250-254,共5页Chinese Agricultural Science Bulletin

基　　金：国家重点基础研究发展计划(973计划)"病毒及菌害调控的候选药物与分子靶标"(2010CB126105);科技部农业科技成果转化资金项目"防治稻飞虱及其传媒病毒药剂中试与转化"(2009GB2F200330);科技部科技人员服务企业行动项目"防治水稻稻飞虱及其传媒病毒新型药剂的研发;产业化及应用示范推广"(2009GJF20047);贵州省教育厅自然科学研究重点项目"新型抗植物病毒药物的化学生物学研究"[黔科教(2009)0132号]

摘　　要：为明确自主创制新抗病毒药剂——30%毒氟磷WP对南方水稻黑条矮缩病的防控效果以及探讨防治该病的理想药剂组合,采用喷雾施药法对30%毒氟磷WP、25%吡蚜·噻虫嗪SC、10%醚菊脂MG、8%宁南霉素AS的单用或混用处理进行研究。结果表明,在大田分蘖初期,以25%吡蚜·噻虫嗪SC375mL/hm2和30%毒氟磷WP990g/hm2的药剂组合的防治效果最好,防效为66.67%,25%吡蚜·噻虫嗪SC、10%醚菊脂MG、30%毒氟磷WP和8%宁南霉素AS的防效分别为50.51%、33.33%、33.33%、17.12%;在收割期,以25%吡蚜·噻虫嗪SC375mL/hm2和30%毒氟磷WP990g/hm2的药剂组合的防治效果最好,防效为73.24%,25%吡蚜·噻虫嗪SC375mL/hm2、10%醚菊脂MG450g/hm2、30%毒氟磷WP990g/hm2和8%宁南霉素AS750mL/hm2处理组的防效依次是46.48%、45.07%、43.66%、42.25%。同时,测产试验结果表明:与CK相比,增产效果最明显的是25%吡蚜·噻虫嗪SC375mL/hm2和30%毒氟磷WP990g/hm2组合,增产值为292.35%,而25%吡蚜·噻虫嗪SC、10%醚菊脂MG、30%毒氟磷WP和8%宁南霉素AS的增产值为249.75%、230.7%、208.65%、104.7%。因此,为有效防治南方水稻黑条矮缩病,可采用本研究中的杀虫剂和抗病毒剂的联合处理,特别是在秧田期用药。To understand the control effects of creating new pesticide of Dufulin against SRBSDV and the ideal control methods,the field trials were completed in rice through field spray about the pesticides of 30% Dufulin WP,25% pymetrozine·thiamethoxam SC,10% Ethofenprox MG,8% Ninnan mycin AS and its combination.The results showed that,at original field tillering stage,at a dosage of 375 mL/hm 2 and 900 g/hm 2,the control effects of the combination about 25% pymetrozine·thiamethoxam SC WP and 30% Dufulin WP were better,i.e.66.67%,and the control effects of 25% pymetrozine·thiamethoxam SC,10% Ethofenprox MG,30% Dufulin WP and 8% Ninnan mycin AS were 50.51%,33.33%,33.33% and 17.12%,respectively.At harvest stage,the control effects of the combination about 25% pymetrozine·thiamethoxam SC WP and 30% Dufulin WP also were better,i.e.73.24%,and the control effects of the others treatment goups were 46.48%,45.07%,43.66% and 42.25%,respectively.Meanwhile,the crop yield showed that,being comparable with CK-treatment group,the increasing yield about combination about 25% pymetrozine·thiamethoxam SC WP and 30% Dufulin WP were better,i.e.66.67%,and its of others treatment group were 249.75%,230.7%,208.65% and 104.7%,respectively.Therefore the combination of 25% pymetrozine·thiamethoxam SC and 30% Dufulin WP can control SRBSDV.

关 键 词：农药 南方水稻黑条矮缩病 防治效果 

分 类 号：S481.9[农业科学—农药学]