近年来,用富民隆防治小麦赤霉病已在各地广泛开展。但是,由于防治技术比较复杂,效果常不稳定。我站于1963年开始试验,逐步明确掌握施药适期,是药剂防治小麦赤霉病的重要关键。 一、几个防治时期的试验 (一)由间出现病穗以后用药,防治效果不稳定。试验曾连续用药3次,每隔3—5天用药一次,效果只在36.45 In recent years, the use of Fu Min Long to control wheat scab has been widely carried out in various places. However, due to the more complex control technologies, the effect is often unstable. Starting from the experiment started in 1963, I gradually grasped the appropriate period for pesticide application. It is an important key to the prevention and control of wheat scab. First, a few prevention and control of the experiment (a) from the ear after the emergence of disease medication, control effect is not stable. The test has been administered 3 times a day, once every 3-5 days, the effect is only 36.45