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纹枯病是我省水稻上的重要病害。近年来,随着耕作制度的改变,杂交稻的推广,施氮量的增加,病害日趋普遍。过去,国内外很多人试图从抗病育种的途径解决纹枯病的防治问题,但未取得明显进展。近些年,重视采取以栽培管理技术为主的农业防治和化学防治相结合的策略控制病害,尤其将化学防治摆在极重要的地位。如井岗霉素,曾一度认为是防治此病的“特效药”,但因诱致耐性菌产生而防效下降。因此,筛选接替井岗霉素的新药剂已迫在眉睫。为此,我们选择了国内几种主要新药剂、新化学品,其中包括对担子菌类有效的几
Sheath blight is an important disease on rice in our province. In recent years, with the change of farming system, the promotion of hybrid rice and the increase of nitrogen application, diseases are becoming more and more common. In the past, many people both at home and abroad tried to solve the problem of sheath blight prevention and control by means of disease resistance breeding, but no significant progress was made. In recent years, the emphasis has been placed on controlling diseases using a combination of agricultural control and chemical control based on cultivation and management techniques. In particular, chemical control is placed in a very important position. Such as Jinggangmycin, once considered to be the prevention and treatment of the disease “special effects medicine”, but induced resistance bacteria produce decreased efficacy. Therefore, the screening of successor Jinggangmycin new agents have imminent. To this end, we have selected several major new pharmaceuticals and new chemicals in China, including those that are effective for basidiomycetes