First, Bean Pod Rot (a) Symptoms. This disease primarily affects the stems, leaves, and pods of beans, typically occurring near the base of the plant or along the stem. When the stem is infected, the affected area initially appears water-soaked, then becomes damp and rotted at the nodes, causing the parts above to wither and die. In high humidity, the diseased tissue decays, and a white mold develops on the surface. On the leaves, early symptoms appear as dark green, water-soaked spots that expand into round, brown lesions with white mold on top. The infected areas also develop mold and decay. (b) Control Measures. It is recommended to use disease-resistant varieties and implement crop rotation. Plant in well-drained sandy loam soil, raise the planting beds, and maintain good air circulation by spacing plants properly. Drainage should be ensured after heavy rains. During the early stages of the disease, apply protective sprays such as 58% Mancozeb WP diluted 500-800 times, 64% Metalaxyl WP at 500 times, or 72.2% Fosetyl-Al at 800 times. Spray every 10 days, and repeat 2-3 times for better results. Second, Bean Blight (a) Symptoms. The disease begins from the lower leaves, where irregular water-soaked spots appear, especially at the leaf tips. As the disease progresses, the leaves turn yellow and wilt, spreading upward until the entire plant collapses. The roots of infected plants often show cracked bark and brown vascular bundles. Under high humidity, a pink mold layer forms on the infected surfaces. (b) Control Measures. Implement a crop rotation system for more than three years, ideally with grass crops. Apply lime to acidic soils—about 100 kg per acre—to reduce blight incidence. For chemical control, apply 50% Carbendazim WP diluted 1000 times, 10% Polyram at 400 times, or 75% Thiophanate-methyl WP at 1000 times. Water the roots with 50–150 grams of the solution every 7–10 days, repeating 2–3 times if needed. Alternatively, mix 50% Carbendazim WP with 500 kg of dry soil and 200 kg of compost for soil treatment. Third, Bean Rust (a) Symptoms. Rust mainly affects the leaves, but can also damage petioles and pods. Initially, small yellow spots appear on the underside of the leaves, which gradually turn brown and develop into raised pustules filled with brown summer spores. When the pustules rupture, they release red-brown spores. (b) Control Measures. Practice field sanitation by removing and burning diseased plant residues after harvest. Use resistant varieties like Yuexia No. 2, green beans, or Suifeng No. 8. For chemical control, apply 50% Sulfur suspension at 150 times, 75% Thiophanate-methyl wettable powder at 1000 times, 50% Carbendazim wettable powder at 800–1000 times, or 200% Rust Guard at 800–1000 times. Fourth, Bean Angular Leaf Spot (a) Symptoms. This disease mainly affects the leaves, stems, and pods. Early symptoms include purple-brown spots on both sides of the leaves, which enlarge into nearly round, dark brown lesions up to 1–2 cm in diameter. The lesions have indistinct edges and become densely covered with fungal growth when wet, especially on the underside of leaves. Severe infections may cause premature pod drop, leaving only the upper leaves, which become smaller and result in significantly reduced yields. (b) Control Measures. Remove diseased leaves early to limit spread. After harvest, remove and burn or bury all diseased plant debris. Improve field management by proper planting density to enhance air circulation and reduce humidity. Apply phosphorus and potassium fertilizers to strengthen plant resistance. For chemical control, spray 50% Carbendazim WP at 500 times, 75% Thiophanate-methyl at 800 times, or 65% Dicofol at 600 times. Apply 14% Ammonium Solution at 400 times, spraying every 7–10 days, and repeat 2–3 times if necessary. Fifth, Spodoptera Virus Disease (a) Symptoms. Infected leaves show dark green and light green mottling, with the green areas forming bag-like protrusions or depressions. Leaves often curl downward, and some beans become deformed. Affected plants are stunted, flower late, and suffer significant yield loss. (b) Prevention and Control Measures. Use virus-resistant varieties. Establish virus-free fields and select healthy seedlings. Strengthen field care by managing irrigation and fertilization to improve plant health. Monitor and control aphids from the seedling stage onward to prevent virus transmission. Squid Tempura,Fried Calamari Tempura,Tempura Calamari Rings,Tempura Fried Calamari Zhejiang Industrial Group Co., Ltd. , https://www.xingyeseafood.com