Effective methods for controlling underground pests

Underground pests are a group of pests that live in the soil during the endangerment period. They are mainly crickets, earthworms, ground tigers, and golden needles. There are many kinds of pests of this type, which endanger the broadness of the host, and not only endanger vegetables, but also harm flowers, wheat, corn, sorghum, lawns, tobacco, and fruit tree seedlings. They mainly feed the seeds, roots, stems, roots, tubers, seedlings, young leaves and growing points of crops, often resulting in seedlings, ridges, or poor seedling growth.

The effective methods to control underground pests include:

40% methylisothiphos EC 50 ml water, 50-60 kg of water, wheat, corn, sorghum, and peanut seed 500-600 kg will be used for seed dressing. Spray evenly, spread it to dry, and sow. Valid for 30-35 days, it can control underground pests such as cockroaches, cockroaches, yellow ants, and golden worms.

One month before deep-frozen in winter, deep plowing of the soil is 35 centimeters, and as the ploughs are picked up, plowing can destroy the living and overwintering environment of pests and reduce the density of insects the following year.

After cleaning the pastoral crops, the weeds are picked in time to reduce spawning and concealment of pests. Before the emergence of crops or at the age of 1-2 seedlings of the tigers, weeds were cleared in time to reduce early larval diets. The weeds are buried or transported out of the field and the young eggs are eliminated.

In addition to the root irrigating seedling pests, it is possible to use 90% crystals of trichlorfon 800 times, 50% diazinon agricultural oil 500 times or 50% phoxim EC 500 times. Choose one kind of irrigation root, once per 8-10 days, and continue irrigation 2-3 times. In the land with high density of underground pests, 40% methylisofluosal 50-75 grams can be used, and the water can be diluted 50-75 kilograms. The irrigation at the root of the seedling begins at about 4 pm, and the effect of killing the ground tiger reaches more than 90%. It can also treat lice and goldworms.

The application of poisonous soil with 5% tert-butyl phosphate 37.5-45 kg per hectare, ditch Shi, point Shi can be, the efficacy period of up to 60-90 days. Or use 50% phoxim EC 1.5 kilograms per hectare, mix fine sand or 375-450 kilograms of fine soil, and ditch the medicinal soil in the ditch beside the crop roots, then cover the earth, or combine the earth with the earth, which can prevent more Underground pests.

Irrigation and disinfestation in areas with good water conditions, timely irrigation after the occurrence of ground tigers, can receive unexpected results.

Trap adult (1) black light trap. Adults of chafers, ground tigers, and cockroaches have a strong tendency toward black light. According to the actual conditions of each place, under certain possible conditions, some black lights are set to kill during the period of adult emergence. (2) Placing sweet and sour sauces can kill the adult tigers. (3) Induction and killing of earthworms with sauteed wheat bran and bean cake. Usually in the evening without rain, digging pits in the field, put poison baits, early the next morning to pack pests to be treated centrally. (4) Poison bait trapping. The fresh grass or vegetables were chopped and weighed with 2% to 2.5kg of 50% phoxim 100g and sprayed on 1000kg of grass. In the evening, the fields were divided into small piles and placed in the field to lure the tigers. Fresh poplar twigs about 1m long were soaked in a 40% omethoate solution diluted 50 times. After 10 hours, they were taken out. After inserting spring planting plots in the evening, 150-200 sticks per hectare were used to trap and kill the beetles. Spread 2.5 kg of new rapeseed cake and put it in a pan. Saute the fried rapeseed cake in a bucket. Then pour the trichlorfon in a warm water and pour into the bucket for 3-5 minutes. In the evening The baited bait was divided into several small portions and was distributed in transplanting cotton fields. The poisoned dead tiger beetle body was observed early in the morning.

The ground uses the enemy to kill the land tiger. The practice is to use a backpack sprayer at the end of the evening and use 30 barrels of clean water per hectare. Add 2.5% of the enemy to kill 8 ml of water in a bucket of water and make up to 2,000 times the liquid. Stir well and spray it all over the floor. The lower temperature at night and less evaporation, coupled with dew coverage, soil and seedlings are in a moist state, which can ensure efficacy. When various types of tiger larvae damage the seedlings, they are encountering the drugs and passing stomach poisoning, gas smoke, and contact killing. The medicinal effect can be fully exerted. All tiger larvae are poisoned and achieve a better pest control effect. This insect extermination technology is used in various lands and fields of dryland crops and has good results.

The plants are applied with 90% trichlorfon 800-1000 times, 50% phoxim EC 1000-1500 times, and 50% diazinon 1000-1500 times. The above agents are optional and sprayed during the adult period. 2-3 times, once every 7-10 days, have a good control effect.

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