花生病虫害种类很多,发生较普遍,危害较重的主要有枯萎病、叶斑病、根结线虫病和花生蛴螬。 1、花生枯萎病 枯萎病是多种病害的总称,俗称“倒秧病”、“死棵子”等。主要包括根腐病、黑霉病、茎腐病等。根腐病,俗称“芽涝”,病菌随病株残体在土壤中越冬,带菌的荚果、种仁和混有病株残体的土杂肥,一旦遇高温、高湿,发病较重。黑霉病,又称“冠腐病”,在花生中后期发生较多,发病严重时,植株成片死亡。发病部位主要在茎基部,幼苗出土前,子叶就能浸染,根基部出现黄褐色的病斑,扩展 Many peanut pests and diseases, the occurrence of more common, more serious are the main wilt disease, leaf spot disease, root knot nematode disease and peanut 蛴 螬. 1, peanut wilt wilt disease is a general term for a variety of diseases, commonly known as “inverted seedling disease”, “dead tree” and so on. Including root rot, black mold disease, stem rot and so on. Root rot, commonly known as “buds and floods”, with the disease bacteria and plant debris in the soil overwintering, carrying pods, seeds and mixed with soil sickness residue mixed fertilizer, in case of high temperature and humidity, the incidence of heavier. Black mold disease, also known as “crown rot disease”, occurs more frequently in the middle and late peanuts. When the disease is serious, the plant dies. The main part of the incidence of stems in the base, before the seedlings unearthed, the cotyledons will be able to dip, the root of a yellow-brown spots, expansion