Science and Technology 110 Science and Technology Co., Ltd. Popularization of QQ Group Netizens “Hope for Hope†Q: The cucumber leaves have spots like water droplets, which are numerous and dense. What is this disease? How to do?
Zhao Zhanzhou, Plant Protection Institute, Chinese Academy of Agricultural Sciences, answered: According to the description, the number of lesions on the leaves is relatively large and dense. It is initially determined to be the initial symptoms of bacterial bacterial leaf spot. Control methods:
1. Protect the land timely release air, reduce greenhouse humidity, control irrigation after onset, promote root development and enhance disease resistance; implement high ridge film-covered cultivation in open field, level land, improve irrigation and drainage facilities, remove diseased plant residues after harvest, and soak the soil Wait. Pay attention to alkaline fertilizers in basal fertilizer and top dressing.
2. In the early stage of disease, Streptomycin for agricultural use, Ataline (amino oligosaccharide chain protein), 30% copper cupric chloride or 77% copper hydroxide can be used. The two formulations are sprayed alternately at intervals, once every 7 days, continuously 2-3 times, and prevent downy mildew.
Hydrocolloid Wound Dressing,Transparent Hydrocolloid Dressing,Hydrocolloid Gel,Thin Hydrocolloid Dressing
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