姜青枯腐败病发生规律和系统控制技术

 调查表明,南部地区姜青枯腐败病,主发病期是5月中下旬,7月中旬至9月中旬,此阶段土温在28℃左右、土壤高湿,病害易发生流行.9月中旬后病势下落,10月中旬停止,发病期达140d左右.选用抗病良种和无病姜种及种姜消毒处理,轮作换茬,净土种植,健身栽培,药剂防治等系列系统控制技术,可有效地控制病害的严重发生,减少损失.

Regularity of Outbreak and Integrated Control of Wilt Rot Disease of Ginger

Investigations showed that the symptoms of the wilt rot disease of ginger appear first at the middle or the end of May.The disease develops rapidly from the middle of July to that of September.In this period,if soil temperatures are about 28℃ with high moisture,the disease develop most rapidly.After then it slows down and finally stop at the middle of October.The whole period of the disease would take about 140 days.Choosing disease-resistant variety and disease-free of disease-treated or healthy ginger seeds,rotating crops,planting in a uninfected soil,and controlling the disease at its early stage,the integrated method can successfully control the disease and save the loss.