The main pest control methods during the growing period of peanuts are:
1. Peanut leaf spot. Peanut leaf spot includes peanut black spot and brown spot disease. It mainly damages leaves, petioles, stipules and stems. Both diseases often occur at the same time. Prevention and control: 1. Control the initial infestation, remove field residues, timely plough the soil preparation, accelerate the decomposition of the diseased body, remove all peanut stalks from the field before sowing, prevent sporulation, and seriously implement the rotation for more than one year; 2. Use resistance Disease varieties, selection of leaflets, upright, small stomata, thick leaves, dark color varieties more resistant; 3. Strengthen the cultivation and management, timely sowing, rational close planting, increase organic fertilizer and phosphorus and potassium fertilizers, reduce the humidity during the day, timely irrigation and drainage , To promote the healthy growth of peanuts and improve resistance to disease; 4. Chemical control: the prevention and treatment period is mid-July, usually with 50% Miaolingling 1000 times liquid (50 g per mu watered 30 kg) or spot stars 10 ml per mu , Duishui 30 kg or 70% thiophanate-methyl 800 times (60 grams per acre watered 30 kg), once every 7-10 days, even defense 2 times.
2. Peanut root, stem rot. Agricultural control (1) timely harvest, adequate drying, avoid moisture when stored to prevent mildew, sowing before drying. (2) Carry out rotations to avoid rotation. (3) Using sufficiently mature organic fertilizer, deep-seed soil preparation after harvest, and burial of fallen leaves. Chemical control: Before sowing, 25% or 50% of carbendazim is used; 0.5% or 0.3% of the seed amount is used for seed dressing, or 50% of carbendazim wettable powder is used to soak 0.5% of the dry seed amount. For the two diseases have better control effect, sowing before seeding or soaking, in the seedling stage with 25% or 50% of Miao Miaoling 500 times or 1000 times spray, after Qimiao once, before flowering You can control the spread of the disease.
3. Flower rust disease. Prevention and control: Clear the field sickness, concentrated burning or fattening after maturity. Apply base fertilizer, increase application of organic fertilizers and phosphorus and potassium fertilizers, appropriate nitrogen fertilizers, planting with sorghum as appropriate, to facilitate irrigation and drainage; spray control at the beginning of flowering, with 1000 times or 75% chlorothalonil 600 times spray control.
4. The main pests. The main pests of peanuts are: cockroaches, cockroaches, negrota, aphids, golden needleworms, red spiders and bollworms.
1. Underground pests. The aunts are mainly harmful to germinating seeds and young stems. Prevention and cure: 1. Manual capture 2. Seed dressing, dressing with Shiro; 3. Anti-caries can use 5% phoxim granules 2.5kg to 3kg plus fine soil per acre. 15-20kg, spread well in the sowing ditch after fully mixing; 4. When the seedling stage is found to be harmful, per acre with 5000-8000 times of afmectin to irrigate roots.
2. Ground pests. Locust control: Mu 50% anti-influx 10-15g watered 40-50kg or 10% imidacloprid 1000-1500 times or 3% acetamiprid 1500-2000 times spray control; Red spider control: eradication Weeds, reduce insect sources, timely check and control, spotting prevention and treatment, the main use of 1,8% avermectin 5000-6000 times evenly spray, can achieve the desired effect; Cotton bollworm control: Agricultural control: adult stage Willow branches seduce; chemical control: larvae can be sprayed with 800 times NPV virus insecticide + high-performance cypermethrin 1500-2000 times in 1-3 instars.
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