Different bio-pesticides have corresponding methods of use. The China Pesticide Network has compiled some information for farmers to refer to. Details are as follows:
First, avermectin 1. Instructions. 1 control pests. Cotton mites, using 4000% to 5000 times solution of 1% emulsifiable concentrate; 4,000 times solution for vegetable mites; 4000 - 6,000 times solution for 1% emulsifiable concentrate for apple trees; citrus rust for 1% emulsifiable concentrate 6000-10000 Double liquid; citrus whole claw sputum, sprayed with 1% emulsifiable concentrate 4000-5000 times. 2 control pests. Plutella xylostella, 1700 times solution with 1% emulsifiable concentrate; cabbage caterpillar, 2000% solution with 1% emulsifiable concentrate; spotted fly, peach small heartworm, 2500-3000 times solution with 1% emulsifiable concentrate; aphid, 1% emulsifiable concentrate 4000 times solution; Helicoverpa armigera, sprayed with 1% emulsifiable concentrate 800-1200 times.
2. Precautions. 1 Avermectin is toxic to bees and should not be used for flowering crops during honeybee collection. 2 Avermectin is sensitive to aquatic plankton and easily pollutes fish ponds and rivers. 3 This agent is still effective in the production of resistance to other acaricides. 4 In case of accidental poisoning, you can take ipecac syrup or ephedra to detoxify, avoid using barbiturate, valproic acid and other drugs. 5 Do not use this agent when producing Grade A or AA grade green vegetables and fruit trees.
Second, pyrethrin 1. Instructions. 1 dusting. Control cotton aphid, rapeseed meal, thrips, fly locusts, etc., spray 0.5% powder per acre 2 kg, spray on a windless sunny day. 2 spray. Control a variety of vegetables and fruit tree pests such as aphids, thrips, eucalyptus, golden flower worms, cockroaches, leaf mites, and 3% emulsifiable concentrate, diluted with water to 800-1200 times liquid, spray. According to the occurrence of pests, spray again after 5-7 days.
2. Precautions. 1 This agent should not be mixed with alkaline pesticides . 2 Pyrethrin has a strong knockdown effect on pests, but it often has a resuscitation phenomenon, especially when the concentration of the drug is low. 3 Pharmacy should be stored in a cool, ventilated, dry place, to prevent high temperature and sun exposure.
Third, nicotine 1. Instructions. 1 control cotton aphid. In the early stage of aphid, 300-500 ml of 2% water emulsion per acre and 40-50 liters of water were sprayed with water for 7 days. 2 control other pests. Including vegetables, tea, fruit trees, rice and other crops on the aphids, noctuids, thrips, cockroaches, and rice stem borer, planthopper, leafhopper, etc., with 2% water emulsion 800-1200 times, evenly sprayed, The residual period is 7 days.
2. Precautions. 1 The drug is mainly contact-killing, has no systemic action, and must be even and thoughtful when spraying. 2 should not be mixed with acidic pesticides. 3 The safety interval is 7-10 days. 4 After poisoning, take 1 part of activated carbon, 1 part of magnesium oxide, 1 part of citric acid, mix with warm water, or wash the stomach with 1:1000 potassium permanganate solution.
Fourth, agricultural streptomycin 1. Instructions. 172% fungicide your agricultural streptomycin soluble powder. It has special effects on bacterial diseases of various crops. It takes 210-420 grams per hectare. It starts to be used after the crops are fixed, and is sprayed once every 7-10 days. The dosage is increased or decreased according to the severity of the disease. (1) Prevention and control of Chinese cabbage soft rot and leaf blight, using 5000-7000 times liquid, foliar spray. (2) Control rice bacterial blight and bacterial keratosis, using 5000-7000 times liquid, foliar spray. (3) Prevention and treatment of citrus canker disease, using 6000-9000 times liquid, foliar spray. (4) Prevention and control of tobacco wildfire disease, bacterial wilt and angular spot disease, using 5000-7000 times liquid, foliar spray. (5) Control potato ring rot, soak seeds with 6000-7000 times solution and sow. 2 agricultural edge effervescent tablets. Prevention is the main method. After the crops are fixed, the medicine is started. The first time of the disease is sprayed once every 7-10 days, and the medicine is shared 2-3 times. The dosage should be increased or decreased depending on the severity of the condition. (1) Control cucumber bacterial angular leaf spot, using 3000--4500 times liquid, foliar spray. (2) Prevention and control of tobacco wildfire disease and angular spot disease, using 3000-4000 times liquid, foliar spray. (3) Prevention and control of Chinese cabbage soft rot, using 3500-4500 times liquid, foliar spray. (4) Control rice bacterial blight, using 3500-4000 times liquid, foliar spray. (5) Prevention and treatment of citrus canker, using 3500-4500 times liquid, foliar spray.
2. Precautions. 1 Anti-moist, avoid sun and high temperature, store in a dry and ventilated place. 2 can be mixed with antibiotic pesticides, avoid mixing with alkaline pesticides and sewage, otherwise it will be easy to fail. 3 The agricultural edge effervescent tablets are all sprayed after the tablets are disintegrated, so as not to affect the efficacy.
V. Yi Zhiling 1. Instructions. Yizhiling can control the diseases of various crops such as grain, beans, melons, etc. When applying by spraying, 1200-1500 times of liquid is used, spraying once every 7-10 days, even spraying 2-3 times. Use the soaking and rooting method to apply 600 times of liquid, soaking time is 1-2 hours.
2. Tips for pesticide network : 1 Apply before or during the onset of crops. 2 This agent can be mixed with acidic or neutral pesticides. 3 Store in a cool, ventilated, dry place
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