Carbofuran is an insecticide invented in the United States in the last century. It is often used to control underground pests such as tigers. Although the use of carbofuran is simple, the configuration and use of carbofuran are also slightly different for different regions and different soil environments. Different, let's take a look at the small series of pesticide nets . 1. Control rice blast, rice planthopper, rice locust, rice leaf mites, rice blast, rice leaf miner, rice water weevil, rice larvae, etc., the following methods can be used: Application in the root zone: Before sowing or transplanting, 2.5-3.0 kg of 3% carbofuran granules per acre, the residual effect period can reach 40-50 days. It can also be applied before sowing in late rice fields, especially for rice blast. Application of water surface: 1.5-2.0 kg of 3% carbofuran granules per acre, mix well with 15-20 kg of fine soil, evenly spread the water surface, keep the shallow water, and treat the grasshopper at the same time. In order to increase the uniformity of spreading, the above-mentioned dosage of 3% carbofuran granules can be uniformly mixed with 10 times of semi-dry soil to prepare toxic soil, which can be uniformly applied to the water surface with the use. When the water retention is good, the effect period can be up to 30 days. Seeding ditch application: In the land-rice planting area, 3% furandan granules are applied to the seeding ditch simultaneously with the rice seeds, and the dosage per acre is 2.0-2.5 kg. Dry-growing rice: 7-10 days before transplanting, apply 3% furandan granules to Putian, use 7-10 kg per acre (Putian), that is, apply 10-15 grams per square meter of polder, which can prevent the occurrence of Honda. Rice leaf miner. 2. Control cotton aphid, cotton scorpion horse, ground tiger and nematode, etc., according to the conditions of each region, the following methods can be used: Seeding ditch application: When the cotton is planted, 1.5-2.0 kg of 3% carbofuran granules per acre is applied to the seeding ditch simultaneously with the seeds. It is both accurate and safe to use a powered seed drill with a dosing device. Root side chasing: generally adopting ditch application or hole application method for topdressing, ditch application 3% kg of danfuran granules per mu, ditching from 10-15 cm of cotton plant along the ridge, the depth is 5-10 Cm, the soil is covered after application. It is advisable to apply 0.5-1.0 g of 3% granules per hole. If it can be watered after the application, the effect is better. Generally, the effect can be exerted after 4-5 days of application. Seed treatment: cotton seeds should be first desulfated with sulfuric acid or foamed sulfuric acid, and mixed with 35% carbofuran seed treatment agent and 28 ml of water for each kilogram of cotton seeds. 3. Prevention and control of tobacco night moth, haze, tobacco root knot nematode, and underground pests such as tobacco leaf miner, small tiger, and cockroach. Seedling period application: 15-30 grams of 3% carbofuran granules per square meter, evenly applied to the surface of the seedling bed, then turned into the soil 8-10 cm, 1 week before transplanting the tobacco seedlings, need to apply again 1 time Apply to the soil surface, and then water to wash the active ingredients of carbofuran to the root area of ​​the tobacco seedlings, which can protect the tobacco seedlings from pest damage early after transplanting. Honda application: When transplanting tobacco seedlings, apply 1-3 carbofuran granules to 1-1.5 g in the transplanting hole. 4. Prevention and control of sugarcane pests: Carbofuran is effective against sugarcane, golden worm, sugarcane locust, sugarcane thrips and sugarcane nematodes, and can be applied by soil application method. Granules are applied in the sowing ditch, and 3% carbofuran is used per mu. The granules are 2.2-4.4 kg, and the soil is covered after application. 5. Control soybeans and peanut pests. Soybean meal, soybean root larvae and soybean cyst nematode: application in the planting ditch, using 3% carbofuran granules per acre 2.2-4.4 kg, covered with soil after application. Peanut mites, Spodoptera litura and root-knot nematodes: take the method of strip application in the sowing period, the bandwidth is 30-40 cm, 4-5 kg ​​of 3% carbofuran granules per acre, and turn into 10-15 after application. In centimeters. In the flower-forming stage, the ditch can be applied sideways, and 33 g of 3% carbofuran granules are applied per 10 m long ditch, and then the soil is covered. 6. Prevention and control of corn pests: using 3% carbofuran granules, in the corn trumpet period, according to the dose of 3-4 tablets / plant into the corn leaf heart (flare), can achieve good insect control effect. In addition, 28 ml of 35% carbofuran seed treatment agent per kilogram of corn seed and 30 ml of water mixed with seed dressing can effectively control underground pests. 7. Control of sugar beet and vegetable pests: 35% carbofuran seed treatment agent is used for seed dressing of various crops such as sugar beet and rapeseed, and to prevent and control various pests such as armor, armor, thrips and aphids in seedling stage. Strong adhesion. It has the advantages of uniformity, not easy to fall off, good film formation, fast drying, luster, and slow release. Beet seeds are treated with 35% carbofuran seed treatment agent per kilogram of seed, 23-28 ml, 40-50 ml water is added and mixed, and the seeds are mixed. Such as the prevention of beet blight can add 50% Fumei double wettable powder 8 grams plus 70% soil bacteria eliminate wettable powder 5 grams plus increased bacteria concentrate 5 ml mixed seed dressing, mixing medicine is best to use the mixing machine. Rape per kg of seed with 35% carbofuran seed treatment agent 23-28 ml, add water 30-40 ml plus 50% thiram double wettable powder 8 g plus 70% soil bacteria eliminate wettable powder 5 g plus increase production bacteria concentrate 5 ml Mixed seed dressing can cure both diseases and insects and cultivate strong seedlings. Precautions: 1. Carbofuran is highly toxic and should not be used on vegetables and fruit trees. 2. It is strictly forbidden to spray the carbofuran into water and spray it directly. 3. Carbofuran should be applied in rice fields, and can not be mixed with herbicides such as Chlorpyrifos and chlorpyrifos. The application of propanil should be carried out 3-4 days before the application of carbofuran, or 1 month after the application of carbofuran. 4. The hydrolysis rate of carbofuran in water is accelerated with the increase of pH value and temperature, so it can not be mixed with alkaline pesticides and fertilizers, otherwise it will be easily decomposed and failed.
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