There are many kinds of medicines used in the maintenance of golf course lawns, and the types are also very different. In particular, the peak season of golf course operation is often the most frequent period of maintenance and medication. How to use medicine in time does not affect the guests to play, which is a headache for stadium lawn managers. It is a very convenient and effective solution to rationally mix various products in golf lawn maintenance and reduce the time and frequency of application. Mixing of drugs is a good solution to the problem, but there are a lot of problems to be aware of when mixing drugs. Here is a brief introduction to the principles of mixing drugs and common types of mixing. 1. The following five principles must be followed for the mixing of pharmaceuticals: 1. Mixed products (including pesticide products and other products) cannot react chemically. For example, acidic agents cannot be mixed with alkaline agents, and many acidic or alkaline chemical fertilizers cannot be mixed with pesticides. For example, boric acid, potassium dihydrogen phosphate, ferrous sulfate, etc. are acidic, calcium phosphate, copper hydroxide and the like are alkaline, and most pesticides are suitable for use under neutral conditions. 2. The physical properties of the drug after mixing should remain unchanged. If mixed, the emulsifying system may not be destroyed, the original drug may be precipitated or the emulsion particles may become large, and precipitates or flocs may appear. 3. Mixed method: When mixing, use the same preparation form as much as possible to avoid mixing the emulsifiable concentrate with the wettable powder or the suspension. If it is necessary to mix a variety of pesticides, it should be added in the order of wettable powder → suspending agent → water agent → emulsifiable oil, and stirring constantly. After a drug is fully dissolved, add another agent. Do not pour several agents into the water to avoid mixing with each other. 4. When spraying the compounded agent, continually shake or stir to prevent delamination and sedimentation. 5. When mixing the medicine, it should be used with it. It should not be placed for a long time, especially the mixed dilution of fungicide, insecticide and fertilizer. Second, the common types of mixed use in practice 1. Insecticide and synergist mixed synergist inhibits the multi-functional oxidase in the insect body, preventing its decomposition of the insecticide, thereby playing a synergistic effect. Types of synergists: synergistic antimony, synergistic ether, synergistic ester, and special effect. The same synergist has different synergistic effects on different pesticides, so please read the product manual. 2. Mixing insecticides with insecticides Mainly mixed species: mixed with organic nitrogen and urethane, mixed with organic phosphorus and urethane. Such as: Aolico and nematode net can be mixed, Aolico and 蚯蚓 å¯ä»¥ can be mixed, insecticide double and succulent can be mixed. 3. Mixing insecticides with fungicides These mixed agents have both insecticidal and bactericidal effects. Such as: Aolico mixed with Jinlix, Aolico and Xiafangjing mixed, Avicidin and Jinlix mixed, Avicidin and Pythium were mixed, carbendazim and Carbofuran mixed (note that Carbide is too toxic )Wait. 4. Mixing fungicides with fungicides is mainly a mixture of systemic fungicides and protective fungicides to prevent and control different diseases. The protective fungicide can remain on the surface of the plant body to prevent the invasion of the bacteria; the systemic fungicide is absorbed into the body by the plant and transmitted to various parts of the plant to kill the bacteria. Such as: Jin Like and Kellick mixed, Pythium net and coin gram, Xia Zejing, Jin Like, Lectra and so on. 5. Prevent nematodes, mites, moss products and fungicides mixed with nematodes, moss often associated with disease or sometimes can not be judged, it is recommended to mix two types of products at this time, such as Jin Like + nematode net + Bai Lijie, coin gram + 蚯蚓 ,, Jin Like + Bai Li Jie and so on. 6. When the fungicide, nematode net and root enzyme are mixed with root diseases including root damage caused by nematodes, it is recommended to use fungicides and promote root growth products, such as fungicides and root enzymes, nematode net and root enzymes, The combination of BMWs, because the roots are damaged, the absorption of nutrients in the underground part is reduced, and the absorption through the leaves is the best way to recover. 7. Herbicides and herbicides are mixed with long-lasting herbicides and short-lived herbicides, systemic herbicides combined with contact herbicides, and herbicides with different herbicidal spectrums. Such as: N6 weed net and N3 weeds mixed with acetochlor and atrazine mixed. There are also related methods for calculating the amount of drug required for mixing the agents. When mixing the medicaments, attention should be paid to the calculation of the concentration. It is not possible to simply mix 1000 times of the medicine with 1000 times of the medicine and then mix it. It is used as 1000 times of the medicine A and B. The dilution ratio of the two pesticides is 2,000 times, and one part of the medicine and one part of the medicine should be included in the amount of water required to be 1000 times. This method should also be followed when mixing three or more types of agents. 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Mixing the action mode, mechanism of action and different agents of the control object can save time and labor, slow down the rate of drug resistance, and prolong the use time of the drug, which is a good way to overcome the resistance of pathogenic bacteria and pests. Ways, and can cure a variety of pests and diseases, that is, expand the spectrum of prevention, enhance drug efficacy, reduce the amount of drugs, thereby reducing costs. Mastering the correct mix of methods will definitely achieve twice the result with half the effort.
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Scientific application of medicines in golf lawn maintenance