Generally speaking, in the process of peanut planting, the occurrence of pests will cause the peanut to reduce production. In order to effectively control peanut pests, some experts have introduced the prevention and control methods of peanut pests for reference. 1 Prevention and control of sucking mouthparts pests Peanuts, leafhoppers and other sucking mouthparts pests are the focus of prevention and control of peanuts after emergence. 1.1 Protection and utilization of natural enemies There are many kinds of natural enemies of peanut aphids. The important ones are ladybugs, grasshoppers, and scorpion flies. The amount of peanuts per 100-dot in the field is about 4, and the ratio of clams is 1:100-120, which can effectively control the damage of locusts. . Reasonable layout of crops, implementation of wheat field and peanut field flower planting, can increase the number of ladybugs, reduce the damage of aphids. In addition, honey plants such as cowpeas can be planted around the peanut fields to protect natural enemies using aphids. 1.2 Chemical control Before the flowering of the peanuts, when the locusts reach 10 heads per aphid, or the rate of the peanut stalks reaches 5% to 10%, the spraying should be promptly sprayed. It can choose pesticides with high efficiency, low toxicity and long-lasting effect, such as control of aphids with imidacloprid and acetamiprid; control of spider mites with avermectin and scorpion. It is also possible to spray pyrethroid pesticides such as bifenthrin emulsifiable concentrate and fenvalerate emulsifiable concentrate. 2 Prevention and control of underground pests Peanut underground pests mainly include cockroaches, cockroaches, golden worms, and tigers. Underground pests are the main pests that affect peanut germination, fruit set, pod formation, yield and quality, and can be harmful during the whole growth and development of peanuts. To control peanut underground pests, we must master the prevention and control period, and combine the prevention and control of sowing period with the prevention and control of growth period and the prevention and control of adult stage and prevention and control of larval stage. 2.1 liquid water pouring method Irrigation with 50% phoxim emulsifiable concentrate, 50% chlorpyrifos EC or 90% trichlorfon crystal 1000 times solution, or 60 to 500 kg of water can be irrigated with 40% lesbian oil 250-300 mL per 667 m2. 2.2 Poisoning soil method For every 667m2, you can use 40% lesbian cream 250-300mL, 40% phoxim emulsifiable concentrate 250-400mL mix soil 20~30kg, or 10% chlorpyrifos granules 1.5~2kg per 667m2, evenly spread around the peanut pier. It is better to irrigate after cultivating. 2.3 Chemical pesticide control According to the occurrence regularity and living habits of the peanut mites, in mid-June, when the soil is wet before or after the rain, the toxic soil is prepared by using chlorpyrifos and Miller according to the instructions, and concentrated and evenly applied to the main root of the peanut. In addition, it can completely control the golden tortoise shell and the cockroaches that damage the pods, and can also cure a variety of underground pests such as gold worms. 2.4 Prevention and control of adults 2.4.1 Spray control adult In the prosperous period of adult worms, 40% phoxim emulsifiable concentrate 1000-2000 times liquid or 4.5% beta-cypermethrin emulsifiable oil 2000-3000 times liquid is sprayed to control adult plants. 2.4.2 Using fresh branches to trap adults In the period of emergence and emergence of adults, take 3 to 5 bundles of 60 cm long fresh eucalyptus, poplar and willow, and immerse them in 5 times of 75% sulphur emulsifiable concentrate for 5-6 hours. Insert them in the evening. In the field, insert 10 to 15 per 667m2 to trap the adult. 2.4.3 Using plants to kill adult insects The use of adult larvae (feeding plants) to cause numbness, poisoning and death characteristics, planting ramie in the peanut field to trap adult. 20 to 30 strains of ramie per 667 m2. If it is summer peanuts, ramie can be planted first, and it is more suitable to grow 2-3 leaves of ramie from the initial stage of adult to the priming stage, so that the control effect is better. 2.4.4 Artificial capture of adults Every night, a flashlight is used to manually catch adult insects on trees such as poplar, eucalyptus, willow, and hedgehog near peanut fields. The captured adult is fed to the poultry or concentrated. Combine peanuts to collect planing, pick up cockroaches or golden tortoise shells, reduce the density of insects in the field, and reduce the damage of the leap year. 3 Prevention and control of leaf-feeding pests Peanut leaf-eating pests mainly include cotton bollworm, beet armyworm, Spodoptera litura, and Spodoptera litura. In the prevention and treatment, high-efficiency and low-toxic chemical agents such as insect growth regulators should be applied reasonably. Helicoverpa armigera harms peanuts in the second and third generations, and the third generation is the most harmful. When there are 30 young larvae or 30 eggs per 100-day-long peanuts, the pyrethroid insecticides such as beta-cypermethrin or the biological pesticides such as chlorfenapyr, taibao and Bt preparations can be used for prevention and control, and other pests can be treated at the same time. 4 Chemical control methods for major pests 4.1 Locust Aphids are the main pests that damage peanut leaves, causing leaf deformation and poor growth. Aphids can also spread a variety of viral diseases. The control of peanut aphids must be based on the word "early". When the control indicators are reached, 10% imidacloprid wettable powder 5000 times solution, 3% acetamiprid emulsifiable concentrate 2000 times solution, 25% Akti Water-dispersed granules 5000 ~ 10000 times liquid, 50% anti-Pu Wei 1500 times liquid, 2.5% Kung Fu emulsifiable oil 3000 ~ 4000 times liquid, 40% dimethoate 800 times liquid spray control. 4.2 Red Spider The spider mites are in the period of June-August and occur in dry years. When the rate of pests reaches 20% or more, it is necessary to spray and control in time. You can use 1.8% avermectin EC 3000 times solution, 15% 哒螨 ä¹³ ä¹³ 1000-1500 times liquid, 15% broom emulsifiable oil 2500-3000. Spray control such as double liquid, 20% anti-sweeping emulsifiable concentrate 2000 times liquid. Spray evenly, be sure to spray on the back of the blade, and the host plants such as weeds on the edge of the field should also be sprayed to prevent their spread. 4.3 Helicoverpa armigera The damage period of cotton bollworm is from June to August, and it is heavier in dry years. The second and third generations are harmful to peanuts. The second generation occurred in the middle of June to the beginning of the second half of the year, and the third generation occurred in mid-July. When the second and third generations of cotton bollworms had a total of 20 eggs per litter of peanuts or 3 larvae, 4.5% beta-cypermethrin EC 1500 was used. ~ 2000 times liquid, 2.5% kungfu emulsifiable oil 2000 ~ 3000 times liquid, 25% chlorpyrifos EC 1500 ~ 2000 times liquid, 5% card dead emulsifiable milk 1000 times liquid, 5% taibao emulsifiable oil 2500 ~ 3000 times liquid, spore content per More than 10 billion Bt preparations 500 ~ 800 times liquid spray control, each generation of cotton bollworm should be controlled 2 to 3 times. The above agents can also treat larvae of Spodoptera litura, Spodoptera litura and other Noctuidae. The above is the whole prevention and control of peanut pests. If you have planted peanuts, you can come to Huinong.com to learn more about pest control techniques and prevent them in advance! Drinking tea is a kind of drink originating in China made from the leaves or buds of the tea plant. Also refers to the leaves of the evergreen shrub tea tree that can be used for drinking tea, and drinks made with these leaves, and later extended to all herbal tea made with plant flowers, leaves, seeds and roots, such as "Tieguanyin" and so on. Kombucha Ph Test Strips,Kombucha Ph Strips,Kombucha Test Strips,Ph Tester For Kombucha Changchun LYZ Technology Co., Ltd , https://www.lyzstrips.com
Tea, as a famous health drink, is the contribution of the southern Chinese people to the Chinese food culture and the Chinese people's contribution to the world food culture