Dried
Chrysanthemum
Origin in
Ningxia, China. This is a kind of traditional tea makers in Chinese tea
culture. According to traditional Chinese medicine, chrysanthemums produce energy that targets the liver, spleen,
kidneys, and lungs. Chinese medicine categorizes herbs based on energetic
properties rather than the chemical ingredients. Chrysanthemum provides mildly
cold energy. Chrysanthemum has been used for hundreds of years in Chinese
medicine. People use it to treat respiratory problems, high blood
pressure, and hyperthyroidism. Fans of the flower also say it can reduce
inflammation and calm your nerves.
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Smoke agent prevention and cure method for greenhouse vegetable pests and diseases
Smoke agents, also known as aerosols, are a new technology for controlling vegetable pests and diseases in greenhouses. At present, there are single-type smoke agents such as chlorothalonil and sulfacin, and there are also rejuvenated smoke agents, such as compound smoke agents mixed with chlorothalonil and ketamine. The smoke agent can prevent more than 85% of the diseases in greenhouse vegetables, and it can be used only to ignite the smoke agent by using match without using medical equipment, water and auxiliary tools. The use of the smoke agent in the greenhouse is as follows: 1. The choice of the smoke agent. In the prevention and treatment, suitable smoke agents should be selected according to different diseases. For example, prior to colonization, chlorothalonil smoke may be used for prophylaxis. When leafy mildew occurs in tomato and cucumber in greenhouses, it can be controlled by suicidal smoke agent; if multiple diseases occur at the same time, compounding agent can be used for prevention and treatment. 2, the dosage form and the determination of the firing point. If the space in the shed is large, the smoke agent with a high content of active ingredients may be used, or the smoke agent with a low content of active ingredients may be selected. When using the smoke agent with the content of active ingredient (30%, 20%, 10%), the firing point can be less, usually 3-5 points per acre can be set; when using a smoke agent with a high content of active ingredients, in order to prevent the discharge Near the point, due to prolonged high-concentration smog fumigation caused by phytotoxicity, the number of burning points per mu can be increased to more than 5. If the shed is relatively short, it is appropriate to use smoke agents with a low content of active ingredients (10%, 15%). The discharge point can also be appropriately increased. Generally, 7-10 doses per acre are set to ensure the safety of medication. Small sheds lower than 1.2 meters are not suitable for the application of smoke agents, otherwise the crops are liable to cause injury. 3, the amount of medication. According to the size of the greenhouse space, the content of the active ingredient of the smoke agent and the different growth periods of the vegetables, the number of drugs to be used is determined. Generally, 30% of chlorothalonil smoke, 10% of fast smoke, and 22% of dichlorvos are used in the greenhouse. The amount of 0.3-0.4 g per cubic meter of space is used once, and the dosage is equivalent to the amount of shed per mu. 300-400 grams, once every 7-10 days, can be used 2-3 times. In the early stage of vegetable growth, due to the growth of young seedlings, it is easy to cause phytotoxicity and the dosage should be reduced as appropriate. 4, the number of medications. According to the severity of the disease, determine the number of medications. In the early stage of the disease, the control effect can be achieved only by expelling the smoke agent once; when the disease is severe, it should be continuously controlled 2-3 times, and the interval between application is 5-7 days. If in the middle of the second use of the smoke agent, the use of another fungicide for conventional spray control is more effective. 5, discharge method. Before using the smoke agent, it is necessary to inspect the film in the booth, make up the loopholes, and close the booth tightly. The time of the fire is selected after covering the grasshopper in the evening. The cloudy sky and the snow will be the best for the evening. This is because of the sunlight exposure. The temperature of the plant surface is the same as that of smoke particles. Smoke is not easy to deposit and weaken the injury. To put the smoke evenly, light it in order from the inside out. After leaving the scene, the staff closed the booth overnight. After ventilation the next morning, personnel can enter the greenhouse to carry out operations.