不同药剂对稻瘟病的防效试验刘琳丰，顺格娥，魏永建（黔东南州民族农校）稻瘟病近年来在我国南方稻区发病面扩大，危害损失逐年加重，成为制约农业增产增收的重要病害，又由于它的生理小种分化现象广泛存在，易产生抗药性，降低化学防治效果，所以在合理应用其它防治措施... Prevention of Magnaporthe grisea by Different Agents Liu Linfeng, Shun Ge’e, Wei Yongjian (Qiandongnan Minzu Agricultural School) In recent years, the rice blast has expanded its incidence in rice growing areas of South China and the harm loss has been increasing year by year, which has become an important disease restricting the increase of agricultural production and income , But also because of its physiological racial differentiation phenomenon is widespread, easy to produce resistance, reduce chemical control effect, so the rational use of other control measures ...