一、高粱主要病害及其防治技巧1.高粱长乌米(丝黑穗病)该病是由于土壤中含有丝黑穗病菌,萌发产生双核侵染丝,侵入幼苗蔓延到生长点,在花序内发病。感染丝黑穗病菌的高梁一般植株比较矮小,高粱穗比较细。病穗在未抽出旗叶以前即膨大,幼嫩时为白色棒状,早期在旗叶内仅露出病穗的上半部。 First, the main diseases of sorghum and its prevention and treatment 1 sorghum long Wu meters (head smut) The disease is due to the soil contains the head smut, germination of double-nucleus infected silk, invasive seedlings spread to the growing point in the inflorescence Disease. Sorghum infection pathogen generally sorghum plants relatively short, relatively thin sorghum spike. Spike panicle did not pull out before the flag that is inflated, when young white stick, early in the flag leaves only reveal the upper part of the panicle.