蚕豆四大病害的防治

• 作 者: 华琼
• 出 处: 农家顾问
• 发表日期: 1998年12期
• 关键词: 根腐 大发生 青枯病 成圆形 叶片边缘 赤斑 根颈 磷钾肥 托布津 排水不良

根腐病、赤斑病、青枯死秆病和锈病是蚕豆的四大病害。 根腐病是一种真菌性病害。发病后,植株矮小,叶片发黄,主根和茎根变黑,根瘤菌减少。但最明显的特征是植株下部叶片的叶缘变黑,严重时整叶变黑焦枯。此病一旦大

Root rot, red spot, blue dead stem and rust is the four major diseases Vicia. Root rot is a fungal disease. After the onset, the plants were short, yellow leaves, black roots and stems, rhizobia decreased. However, the most obvious feature is that the leaf margin of the leaves of the lower part of the plant becomes black, and in the severe case the whole leaf becomes dark and scorched. Once the disease is large