Analysis of Several Therapeutic Drugs of Three Generations of Pests and Drosophila
For the majority of fishermen, the treatment of "three generations of insects and ringworms" is not too difficult. However, in the past two years, a large number of insecticides have been sold in our city. In terms of therapeutic effect, fish doctors have different views and have their own opinions. Every year at the end of spring and autumn of the year, this type of parasite disease will erupt in the local area. Therefore, the majority of farmers are very concerned about how to economically treat "three generations of worms and ringworms." Now we will make a variety of therapeutic drugs for analysis, and discuss with the majority of breeding friends.
I. Trichlorfon trichlorfon is the most widely used drug for the majority of users. It should be 0.25 mg/l according to conventional dosage, ie 167 g/mu. However, this dose has little effect on the third generation of insects and ringworms. In general, the local dosage is 1 kg of trichlorfon per acre. Under normal circumstances, the squid generally does not exceed three days of food, the cost of 11 to 12 yuan / mu. Pay attention to the thinness of the body of water and the timing of medication, otherwise it may cause long-term segregation. The high cost and segregation is a disadvantage of using this medication.
Second, trichlorfon plus noodles This method is also commonly used by the majority of users treatment, trichlorfon plus noodles to improve the efficacy of trichlorfon, the ratio of 1:0.6. The water depth is 1 meter per acre pond, 0.6-0.8 kg trichlorfon and 0.36-0.48 kg surface noodle, and the cost is 9 yuan/mu. Less cost than the first treatment plan, and it will not affect the fish's food intake for a long time. The disadvantage is that the body of the body determines the dosage of the drug when it is treated, and the drug is used to judge the drug's experience. Therefore, it is easy to cause incomplete treatment.
3. Phoxim is a treatment widely used among fishermen in recent years. Because of its low drug prices, fishermen are willing to use it. In fact, the efficacy of the drug is extremely poor, with almost no effect per 100 g of acre, and the disease cure rate is less than 50% per acre of 150 grams, and it has a strong risk and can easily cause the death of carp, such as double effect spirit. Ponds often encounter three generations of insects or ringworm and trichoderma concomitant parasite fish and cause diseases, this disease if the single use of the drug, the efficacy is poor, you can use double effect Ling + copper sulfate mixture, that is, with double effect per acre One bottle of spirit, plus 500 grams of sulfuric acid per acre of copper (after using copper sulfate, attention should be paid to changes in dissolved oxygen in water, timely increase in oxygen).
Fourth, water chrysanthemum insecticides This type of drug in Zhengzhou area is very large, effective and safe. Feeding of fish is not affected. The cost of treatment is 5 yuan per mu. The biggest drawback is that the treatment is not complete and the parasites are easily revived.
Five, powder extermination fine The drug is low in price, the dose is small, the effect is obvious. I have a variety of insecticides of the same name on the market, which are of unreliable quality. When used, the mind is not bottomed. The use dose of 50 ~ 100 grams per acre, can be increased to 150 ~ 200 grams, that is, the cost of 5 yuan per acre medication. B type insecticide, insecticidal effect is good. Use at least 1 package per acre (used according to instructions), drug price 6 yuan. Many people with the same name on the market should pay attention to identification.
6, the enemy fish This is matrine Chinese medicine. The effects of three generations of insects and ringworms are not ideal, and they are mainly used for fish that are sensitive to organic chemicals, such as freshwater whitefish and squid. Dosage, use 1 package per acre. The use of this drug in the carp pond is good for regulating water quality.
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