Major diseases and prevention of soybean

Root rot disease can occur in the whole growth period of soybean and cause harm, the reduction rate is generally more than 25%. The main symptom is dark brown spots on the base of the stem, and it spreads to the lower lateral branches in varying degrees upwards, causing the medullary stems to become brown and the petiole base to contract, and the leaves droop, but do not fall off. Chemical control: The main application is 58% thiram Mn-Zn or 72% Kelu wettable powder. The dosage is 0.3%-0.4% of the seed amount. For fields where soybean root rot has already occurred, use 25% metalaxyl wettable powder 800 times, or 58% manganese zinc metalaxyl wettable powder 600 times, or 64% naphtha Mn zinc WP irrigated 900 times, rooted once every 7 to 10 days, and continuously irrigated 2 or 3 times.

Sclerotinia: The S. sclerotiorum disease is mainly immersed in stems, and there are brown spots on the stems at the beginning of the infestation. Afterwards, there are white cotton flocculent mycelia and white particles on the lesions, followed by black particles (sclerotia). The stalks of the diseased plant can be seen in the sclerotia of a black cylindrical mouse. The diseased plant is grayish after death. Chemical control: Spray with 50% Suo Keli wettable powder 1000 times or 40% nucleus net 1000 times or 50% thiophanate 500 times.

Gray spot disease is also known as spot disease. Soybean meal starts from the tender period, and the spurt period is the peak of onset, and the onset is heavy in high temperature and rainy season. The main damage to the leaves, almost all the leaves when the serious disease lesions, resulting in premature leaf loss, loss of 20% to 30% damage, product quality. Chemical control: When sowing, use 70% dexamethasone WP or 50% thiram WP to seed 0.3% of the seed amount. In the soybean scape, use 50% carbendazim or oxime per acre. 800-1000 times liquid spray, or with 5% of the azole alcohol suspension agent 20 grams of water 30 kg, or with Paula up to (18% prochloraz rosin acid copper cream) 20 grams of water 30 kg spray.

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Fuji apple is mainly produced in shandong province. Fuji apple has smooth skin and good color, full fruit juice, sweet and refreshing taste.New harvest season for Fuji apples from September to October.The cold storage season is from October to June next year.Fuji apple mainly exports to southeast Asia, the Middle East, Europe, Russia and North America.Apple packaging includes both inside and outside packaging.Inside packing: paper tray, apple net, plastic bag or sleeve.The outer packing is 3kg CTN, 4kg CTN, 9kg ct, 10kg CTN, 16kg CTN, 18kg CTN or 20kg CTN or as required by the customer.All sizes are graded according to your requirements.When packaged in all sizes in natural proportions, all sizes come in full blush and striped red, and Fuji apples are the best and most competitive in the entire market at fresh prices.Our Fuji apple prices will be to your satisfaction.

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