Maize schistosomiasis, also known as corn black disease, can occur in various growth stages, especially in the heading stage. The damaged parts produce tumors of different sizes. The initial tumors are covered with a white film and then turned gray. The tumor is rich in water and emits a black powdery substance, ie spores of pathogenic bacteria, after the cracks. It is easy to produce bean-sized nodules on the leaves. Tassels produce cystic neoplasia on the tassel and large nodules are formed on other sites. The cause of corn smut is the black yew fungus, which belongs to Basidiomycotina. Spores spread by wind and rain and insects, high temperature, drought or excessive nitrogen fertilizers are easy to attack. Sweet corn is susceptible to disease, with particular attention to the selection of resistant varieties. Severely affected fields have a 2-3 year rotation. After the occurrence of tumors in the field, clean up and deep-seated in time, deep plowing in time to reduce the source of the disease. Chemical control can be used 80% of green Daoxue 800 times, or 20% of Dimethylcarbamide 1500 times, or 25% Prochloraz 1000 times, or 15% Triadimefon 800 times spray control.
Liga-Lok Ligating Clips,Titanium Ligating Clips,Hemolock Surgical Clips,Weck Hemoclip
Qingdao DMD Medical Technology Co., LTD , https://www.conston-tech.com