马铃薯晚疫病CARAH预警模型在三都县的应用

Application of CARH Potato Late Bright Forewarning Model in Sandu

为更好地防治马铃薯晚疫病,在三都县运用QD-3340MV无线自动气象站收集马铃薯主要生育期内温度、湿度及降雨量数据,运用比利时CARAH马铃薯晚疫病预警模型进行分析,预测马铃薯费乌瑞它晚疫病中心病株出现的时间,并指导防控。结果表明,田间中心病株出现时间与预测值相吻合;在最后1次病指调查时,对照观测圃病指高达95.56,而防控示范观测圃病指仅为16.11;CARAH马铃薯晚疫病预警模型指导性强,可以在三都县马薯生产上推广应用。

For better to control potato late blight, QD -3340 MV wrieless automatic weather stations was applied to collect the climatic data inclued temperature, humidity and rainfall during the whole growth period of potato , a forewaring model of potato late bright named CARAH introduced from Belgium was used in Sandu county, that could predict the time of primary infection focus of potato late blight and then put forward the prevention and control countermeasures. The result showed that the first infected plant appear time in conform- ity with the predicted value. The disease index in the last investigation of CK and demonstration were 95.56 and 16.11 ,respectively. It could be conclude that the CARAHmodel have a good guidance that should be apply in potato production in Sandu.