番茄早疫病与番茄晚疫病是发生于番茄上的两种十分严重的病害。在田间，这两种病害始发期为4月中、下旬，5月份到6月上旬为盛发期，而且往往混合发生，对番茄产量构成严重的威胁。在生产上，目前由于大量单一使用某一种类杀菌剂，导致病原菌抗药性迅速上升，药效连续下降。为了 Early blight of tomato and late blight of tomato are two very serious diseases that occur on tomato. In the field, the onset of these two diseases is mid-April, late May, early May to early May, and often occurs in mixed form, which poses a serious threat to tomato yield. In production, due to a large number of single use of a certain type of fungicide, resulting in the rapid rise of drug resistance of pathogens, continuous decline in efficacy. in order to