旱直播稻在病虫害发生特点上与移栽稻有所不同。我们经过三年的试验、观察和调查,基本上摸清了旱直播稻病虫的发生特点和与之相配套的防治技术。一、旱直播稻病虫的发生特点及原因 (一)纹枯病发生期较迟,发病为害程度轻于移栽稻。据调查,旱直播稻纹枯病发生期较移栽稻迟 Direct seeding rice is different from transplanting rice in pest and disease occurrence characteristics. After three years of experiments, observations and surveys, we have basically found out the characteristics of pest-borne diseases of direct seeding rice and the matching prevention and control techniques. First, the characteristics of direct seeding rice pests and their causes (A) Shetland blight occurred later, the incidence of less harmful than transplanted rice. According to the survey, the occurrence of rice sheath blight in dry seeding is later than that of transplanting rice