摘要
黄斑(点)病是黔糖3号果蔗生产上的主要病害。通过多种农药对黄斑(点)病田间防控试验研究,结果表明,实施农药的综合防控率达65.88%,较对照(不施农药)高57.72百分点,防效明显,而且对1~5级病害都有减轻作用;在不同农药6种处理防效中,77%可杀得300倍液防效最好,防控率达81.48%,较对照高73.32百分点,50%退菌特+50%多菌灵混合600倍液的防控率79.44%,较对照高71.32百分点,与77%可杀得300倍液防效差异不大,但都较其他各处理防效高5百分点以上,差异显著,而且两者1、2、3级病害率都比对照分别降低于20%、15%、10%,且能有效控制4级、5级严重病害发生。因此,针对黄斑(点)病害防控农药选择,建议采用77%可杀得或50%退菌特+50%多菌灵,适时施用,可有效控制该病害发生、蔓延和危害。
Mycovellosiella koepkei(Kruger) Deighton was a main disease in production of Qiantang 3 ( a fruit sugarcane variety). Six different pesticides were tested to study the effect on controlling Mycovellosiella koepkei(Kruger) Deighton. The results showed that the controlling rate of spraying 77 % Cocide was up to 81.48 % ,73.32 % higher than that of CK and the controlling rate of spraying 50 % Carbendazim + 50 % Tuzet was 79.44 % ,71.32 % higher than that of CK. The control rate of spraying 77 % Cocide or 50 % Carbeudazim + 50 % Tuzet was above 5 % higher than that of other 4 pesticides. The disease rate of Ⅰ,Ⅱ and Ⅲ level of spraying 77 % Cocide or 50 % Carbendazim + 50 % Tuzet was 20 %, 15 % and 10 % lower than that of CK respectively and spraying 77 % Cocide or 50 % Carbendazlm + 50 % Tuzet could effectively control Ⅳ and V disease level. Therefore,77 % Cocide or 50 % Carbendazim + 50 % Tuzet method should be used in production of Qiantang 3.
出处
《西南农业学报》
CSCD
2008年第6期1595-1598,共4页
Southwest China Journal of Agricultural Sciences
基金
贵州省种植业结构调整专项资助"黔糖3号果蔗特种配套栽培技术试验示范项目"[黔农(2005)011]
关键词
黔糖3号
果蔗
黄斑(点)病
农药
大田防治
Qiantang 3
fruit sugarcane
Mycovellosiella koepkei( kruger ) Deighton
pestcide
field prevention and control