Celery leaf spot is a common disease that affects celery leaves and stems, causing plaque-like ulcers. In the early stages, applying 5% Yunda Chuili or 75% chlorothalonil diluted at 500 to 700 times can effectively manage the disease.
Garlic leaf blight primarily impacts the leaves and stems, starting with small pale spots on the leaf tips that gradually expand into gray-brown, oval or irregular lesions. Severe cases lead to wilting and death of the entire leaf. To control this, mix 100-150g of 50% carbendazim with 20ml of Yunsheng 120 per acre, diluted in 60kg of water, and spray every 7 to 10 days.
Cucumber downy mildew causes white, frost-like lesions on cucumber leaves, reducing yield. Early treatment with 75% Best fungicide diluted at 600-800 times is recommended, with spraying repeated every 7 days for up to three applications.
Cucumber damping-off occurs during the seedling stage, where the base of the stem develops water-soaked lesions that turn brown and eventually cause the plant to fall over. To manage this, mix 50g of 70% chloronitrobenzene with 5g of 80% Yunsheng 120, and apply 10g per square meter.
Stalk rot in melons affects the stalks, particularly the "flower waist" area, leading to decay. Spraying the base of the stems with 2000-fold dilution (or 4000-5000 times) of agricultural streptomycin is an effective method.
Melon powdery mildew appears as white, powdery patches on leaves and stems. Control can be achieved using 70% thiophanate-methyl diluted at 1000 times or 5% Yunsheng 120 at 1500-2000 times.
Melon wilt disease leads to yellowing and death of plants. A common solution is to spray a mixture of 50% thiophanate and Yunda-120 at 600-800 times, or use anti-dry Ling at 400-600 times for root irrigation.
Ginger corruption, also known as ginger borer, affects the underground stem, causing discoloration and soft rot. If infestation is detected, apply 1kg of lime per acre, combined with 40g of 53.8% cypermethrin and 10ml of Yunda-120 in 50kg of water, and repeat 2-3 times.
Chinese cabbage soft rot begins with wilting of outer leaves during midday, which does not recover. As the disease progresses, the leaves yellow, shrink, and fall off, while the stem becomes soft and slimy. To manage it, spray agricultural streptomycin at 150-200 mg/L or neomycin-containing solutions every 5 days for 3-4 applications.
Legume rust causes yellowing of branches and damage to pods. Effective control includes spraying 25% Yun Da Pu Ning at 2000-4000 times, or using more than 50% bacterial spirit at 800 times or thiophanate at 600 times. Applications should be made every 7-10 days, repeating 2-3 times for best results.
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