豫南区域油菜菌核病的发生规律与防治措施

近年来,随着农业种植结构的调整,河南省大面积推广种植双低杂交油菜,大部分双低杂交油菜品种,对菌核病的抗性较差,属高感病品种。油菜菌核病俗称白秆、烂秆病,河南省上蔡县油菜花期雨水偏多,菌核病常年发生并流行,造成油菜产量大幅度的减产,轻者5%～10%,重者达70%,有的甚至绝收。因此,防治好油菜菌核病是夺取油菜丰产的关键。本文进行了防治油菜菌核病的试验。

The Occurrence and Control Measures of Sclerotinia Stem Rot of Rape in South of Henan Province

In recent years,with the adjustment of agricultural planting structure in Henan Province,to promote large-scale cultivation of double-low hybrid rapeseed,the majority of double-low hybrid rapeseed varieties with poor resistance of sclerotinia stem rot of rape and a high-susceptible.Sclerotinia rot commonly known as white stalk,culm rotten disease.This region has a tendency to rain in rape period,sclerotinia stem rot of rape occurred all year round,resulting in substantial production cut rape,light in 5%～10%,in serious cases up to 70%,sometimes even crops.Therefore,good control of sclerotinia stem rot of rape is a high yield of rape to win the key.This paper conducted a control experiment sclerotinia stem rot of rape.