Chrysanthemum downy mildew prevention method

Chrysanthemum downy mildew develops in June after the emergence of the chrysanthemum, causing the leaves of the seedlings to turn green and slightly curled upwards. The dorsal and young stems are covered with white moldy material. With the growth of the seedlings, the leaves turn brown from bottom to top, and finally Dry and die. The incidence in autumn was more than in October. The leaves, tender stems, and buds were all covered with white mold. The leaves appeared gray-green, slightly wilted, and finally the plants died gradually.

Control methods: Breeding disease-resistant varieties; implementing rotation with cereal crops for more than 3 years; selecting land plots without previous downy mildew; before transplanting, seedlings with 40% diethylphosphorus aluminum wettable powder 300 times Seedlings soaked for 5-10 minutes, or soaked with 50% carbendazim wettable powder 600 times for 12 hours, air-dried and then planted; spraying 40% diethylphosphorus aluminum wettable powder 250-300 times, spray control, Spray once every 7-10 days, spray 2-3 times; at the beginning of autumn, spray 50% carbendazim WP 800-1000 times, or use 40% EDP WP 300 times, or 25 Permethrin WP 500%, once every 7-10 days, the above-mentioned pesticides are used alternately, and even sprayed three times, the effect is remarkable.

Veterinary Ultrasound Scanner

As customers have higher and higher requirements for animal reproduction and animal disease diagnosis and treatment, traditional diagnostic methods such as visual inspection, stethoscope listening, thermometer inspection, and percussion and hammering can no longer meet the needs of animal husbandry production and veterinary clinics. Today, B-ultrasound is playing a big role in human medical diagnosis, and in the future, B-ultrasound will also play a role in animal medicine. We should promote the use of veterinary ultrasound scanner step by step according to the actual situation, popularize the knowledge of the use of veterinary ultrasound scanner, take this as an opportunity, and use it as a ladder to improve the level of veterinary practice in our country.

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Mianyang United Ultrasound Electronics Co., Ltd , https://www.uniultrasonic.com