Peanut is a cash crop with a short growth cycle and significant benefits. However, spring peanuts are easily damaged by pests and weeds, and have a greater impact, which often leads to reduced yields and even loss of crops. The following describes peanut pest control and weed control techniques as follows: The main diseases of peanut are bacterial wilt, blight, leaf spot, and rust; the main pests are aphids and thrips. First, the main disease prevention and control 1, bacterial wilt, blight first, select the varieties of resistance to bacterial wilt, such as Yueyou 256, Yueyou 92, Yueyou 169, etc.; Second, the use of 50 kg of ammonium bicarbonate as the base fertilizer before the site preparation Can effectively control bacterial wilt and blight; third is to use 69% ank manganese 1000 times solution, 75% chlorothalonil 800 times solution, 20% licorice 800 times solution or 75% carbendazim 1500 at seedling stage Double spray control. 2. Rust disease Firstly, select rust-resistant varieties such as Yueyou 223, eucalyptus oil 523, Yueyou 169, etc.; Second, use 20% Triadimefon 2000 times or 75% chlorothalonil 700 times for spraying. 3. Leaf spot disease Firstly, to improve the ecological environment, the soil moisture content should be maintained at about 60% during the seedling stage. The second is to use 50% thiophanate-methyl 1500-fold solution or 75% carbendazim 1500-fold solution for prevention and cure. Second, the main pest control 1, aphid with 1.8% edodecan 3000 times, 2.5% Uranus 3000 times or 2.5% fleas 1500 times spray control; 2, hummer with 10% efficient Dagong Chen WP, 18% insecticidal water double agent 250-400 times liquid, purulentin 1000 times spray control. III. Weeds The main types of weeds used to control peanuts include crabgrass, bermudagrass, goosegrass, setaria, dried goldgrass, barnyardgrass, imperata, aconite, variegated sedges, crushed mirabelle, communis, and horses. Ginseng, Barley, Poria, Sapsa, Ghostweed, Artemisia halodendron, Tequila, etc. Among them, tendrils, setaria, yucca, and sedges are the most serious. 1. Pre-planting weed control Before wetting peanuts, spray the soil with 48% Trifluralin 800 times to control annual grass weeds such as goosegrass, crabgrass, barnyardgrass, setaria, sedge, Dry gold, etc., and other broad-leaved weeds on small seeds, such as cockroaches, cockroaches, purslane and other control effects are also good. It is important to note that trifluralin is easily decomposed when exposed to light. Therefore, it is imperative that after application, the soil must be soaked in order to reduce the efficacy of the drug. 2. Control of weeds before emergence after sowing After 2-4 days after sowing, the surface is sprayed evenly with 74.7 % of farmers Le 747 diluted 500 times or 50% of butachlor 300 times even to effectively control alfalfa, Setaria, purslane , dried gold, duckweed and so on. When applying pesticides, it is required that the soil be moistened. Before drying, it should be sprayed after watering. 3. Prevention and control of weeds after emergence (1) Control of broad-leaved weeds on broad-leaved weeds. When weeds grow to 3-5 leaves, use 48% Benzonsone (Bai Cao) water agent 800 times. The spray can effectively control broken broadleaf weeds and sedge weeds such as minced mirabelle, cocklebur, calfgrass, comfrey, and stalks. (2) Control of grassy weeds in peanuts, which are seriously endangered by grass weeds. When the weeds grow to 2-5 leaves, they are killed with a precision of 15% EC 800 times or 6.9% VIA PA 500 times. Spraying can effectively control grassy weeds such as grasses, green foxtails, crabgrass, goosegrass and bermudagrass. (3) Comprehensive control of grassy weeds and broad-leaved weeds in groundnut weeds that are mixed with grass weeds and broad-leaved weeds. When the weeds grow to 2-5 leaves, 15% of mu can be killed or killed. 6.9% Viagra 50ml plus 40% Benzonsone (BaiKeKe) emulsion 100-150ml evenly sprayed with 50kg water, which can also control broadleaf weeds and grass weeds.