Control of cucumber bacterial blight
The reader asked what happened to the cracking and death of cucumber roots. How to prevent? Wang Zaiqiang: According to the description should be cucumber blight. Cucumber leaf blight is mainly harmful to leaves and vines. The stalk parts are mostly at stem base and stem nodes. The primary oil is immersed in small spots. As the disease spreads, sometimes up to several centimeters long, when the humidity increases, the disease department often Outflow of amber gum, dry and longitudinal cracks, causing the plants to wither. After the onset of the stem, the epidermis tends to tear, causing the plant to die. However, the vascular bundle does not change color and does not harm the roots. In severe cases, it causes continuous plant death and direct loss. Due to the recent frequent rain, the humidity in the field has increased, which is the main reason for the disease. Control methods: 1. Under high temperature conditions, watering and lack of nutrients can also cause cracking of stems. Therefore, appropriate foliar fertilizers should be added during control. 2. Available 25% Prochloraz 800x Solution + 70% Thiophanate-methyl 800x Solution + Vitality Agricultural Nutrient Solution 750x Solution or 10% Difenoconazole 1500x Solution + 60% Dioxymethane 3500x Liquid + Jintai Long Top Dressing Po 600x or 40% Fluosilazol 4000x Liquid + 65% Denko Zinc 600x Liquid + Syngenta Yishi 750x Liquid, alternately used, sprayed once every 5 to 7 days, Effective prevention and treatment; Remember to spray the surface of the stem base, can effectively prevent cucumber stem blight and lack of prime caused stem cracking. 3. Use 70% thiophanate-methyl 50 times solution or 40% fluorosiliconazole 4000 times solution. Http://
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