Cuscuta also known as yellow silk vine, a variety of medicinal plants such as Atractylodes, Platycodon, Bupleurum, Salvia miltiorrhiza, etc. in the cultivation and growth process often suffer. Cuscuta skeined wounded plants with its linear yellow-green stems and sucked the nutrients in the plants with a suction device. As a result, the growing beads weakened and the color turned yellow. In severe cases, the whole field plants were covered by them and the plants were yellow.
Control techniques: Seeds of Dodder mixed in seeds are sown before sowing. If there are mixed dodder seeds in the field, they should be rotated with grass crops. When the seedlings of Cuscuta gondii come out, the ground surface is shallow and the seedlings are destroyed. When it is found that there is a danger of dodder, it should be completely eradicated before flowering. The cut dodder cannot be left in the field or compost. Chemical control can use 2% prometryne solution to treat the soil before sprouting, or in the early stage of dodder spreading, Lubao No. 1 biological pesticide is sprayed. The concentration of the agent is 1 ml of water containing 10 to 50 million spores, ie, every 667 square meters (1 Mu) 250-400 grams of water used to spray 100 kg of spray, to spray in cloudy or light rain, sunny days should be sprayed after 4 pm, before spraying, dodder seedlings should be injured in order to facilitate the parasitic anthrax, improve defense effect.
The frequency of the ultrasonic energy meter is 1 megahertz (1 million Hz / s), the direction is accurate, and the penetration is strong. Through the three major effects of sound waves (mechanical, warm, physical and chemical effects) on various parts of the human body, to achieve the role of massage relaxation.
Ultrasound Treatment, Healthcare Ultrasound, Medical Ultrasound, Therapeutic Ultrasound
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