How can I get rid of pests deep in the field when growing wheat?

Types of underground pests that harm wheat. The key pests that damage wheat underground are grubs, mole crickets and needleworms. Underground pests can feed on seeds, sprouts, young stems and the underground location of the stems, causing the whole wheat seedlings to wiltResulting in dead seedlings and broken ridges.

Conditional water-drought rotation can reduce the number of insect sources. The obvious area of underground pests is generally the dryland agricultural area in the northern region, and according to the rotation of water and upland, the living conditions of the pests can be malignant, and the original insect source is reduced.

Before sowing wheat, the soil is deeply dried. Grubs, mole crickets and needleworms spend the winter in the soil as larvae or nymphs, and deep ploughing and drying before sowing can turn the larvae and eggs to the surface, resulting in larvae, eggs and other insect states being sunburned. Immediately eliminate the infusion of seed wheat, weeds and spring wheat fields.

Weeds are many underground pests laying eggs, are larvae to crops migration damage highway bridges, eliminate weeds can malignant underground pests to lay eggs natural environment, spring fusion wheat rising situation, moderate water injection to a certain extent can make a part of the underground pests suffocate to death.

Before planting wheat, it is necessary to carry out deep ploughing, so that the small insects and larvae hidden in the deepest part of the soil layer can be picked out, and then dried in the sun for 3-5 days, so that the small insects can be killed. Planting is done later, so that pests and diseases can be reduced. Many people sprinkle lime powder on their fields before ploughing and then turn the soil, which can destroy the environment in which pests and diseases grow.

The lime powder itself will have a sterilization function, which can destroy these larvae and nymphs.

Before the wheat seed is planted, it is necessary to carry out the solution of seed dressing. If it is the seeds that are bought, most of them have already been planted, and if they are their own seeds, they can be added with drugs to clean up pests and diseases, such as hydroxyethantherine, so that the pests can be avoided, or they will be poisoned after eating. This pest and disease is very afraid of waterTherefore, they can be injected with water directly, so that their growing environment can be destroyed.

In the past, this was done to pick up the insect infestation later.

Be sure to spray pesticides in a timely manner, and properly turn the soil, properly ventilate, and don't always water too much.

First of all, the soil can be treated with pesticides, and then the seeds must be coated, and the soil can be deeply turned, and then the insects can be eliminated in time, and the loose and breathable soil can be increased, which can effectively rotate.

I think you can spray some pesticides. Also, use potassium permanganate to get the roots, so that the pests will stay away from the wheat.

There are many kinds of underground pests that harm sweet potato, mainly crickets, mole crickets, ground tigers, grubs, and needleworms, which are all omnivorous and can harm many crops at the same time.

The main prevention and control methods are: agricultural control: intensive farming, weed elimination, irrigation, crop rotation; Physical and artificial control:

Artificial trapping, light trapping, sugar liquid trapping, grass trapping; Biological control: Bacillus lactis is cultivated and inoculated in the soil to make the grub susceptible to death; Chemical control: It can be combined with the prevention and control of sweet potato stem nematode disease to soak seedlings with pesticides, mix poisonous soil, trap poison bait, and spray pesticides.

In particular, it is recommended to take agricultural measures to prevent underground pests, and chemical control must meet the national requirements for the safe production of agricultural products.

The underground pests that harm wheat mainly include mole crickets, grubs and needleworms, which occur in wheat areas across the country.

1) Agricultural control When needleworm occurs in wheat fields, timely watering can reduce the damage. Deep ploughing of farmland, deep ploughing and fine raking in late autumn, tillage and weeding during the oviposition and pupation stage, turning the eggs to the surface of the soil and exposing them to death.

2) Light trapping Mole crickets, grubs and needleworm adults have strong phototaxis and strong flight ability, and black light insecticidal lamps can be set up in the field during the adult occurrence period to effectively trap and kill adults.

3) Chemical control agent seed dressing: 50% phoxanthion EC, deltamethrin EC, etc., according to the proportion of medicated seeds 1 100 1000, or 1 50 600 seed coating. Put the seeds on a plastic sheet in a dark place, sprinkle with the potion and mix evenly, simmer for 2 3 hours after mixing, and sow after drying.

Sprinkle poisonous soil: add 1 2 kg of water with 40% phosphine emulsifiable concentrate per mu, mix fine sand or 20 kg of fine soil and sprinkle along the ridge, and water after sprinkling. Or open a shallow ditch next to the root and sprinkle the medicinal soil, and then cover the soil, or combine the hoe to apply the medicinal soil, which can prevent underground pests.

Venom root irrigation: In the plot with high density of underground pests, 50% phosphine 50 75 grams can be used, 50 75 kg of water, spray wheat roots along the wheat ridge, the insecticidal rate is more than 90%, and the grub and needleworm can be treated.

Hello dear, wheat underground pests hibernate in winter! In winter, wheat has underground pests, but there is no harm in this season, and the insects are in the dormant period. In winter, wheat still has underground pests to eat the roots, and above-ground wheat seedlings occasionally regret that there are wheat spiders, but the damage is very low.

Winter wheat insect infestations are generally affected by temperature and rarely occur. The main insect pest of wheat in winter is wheat aphid, which is dominated by wheat bifurcat.

Summary. Underground pests are hibernating in winter and do not need to be controlled. However, to prevent and control underground insects in advance, use 4000 grams of 1% clothianidin granules per mu, add 50 kg of fully decomposed organic fertilizer, mix evenly, combine land preparation, evenly sprinkle on the soil surface, and then level the rake finely, and then sow seeds.

Underground pests are hibernating in winter and do not need to be controlled. However, to prevent and control underground insects in advance, 4000 grams of 1% clothianidin granules are used per mu, 50 kg of organic fertilizer is added to fully rot Cong Nahe, mixed evenly, combined with land preparation, evenly sprinkled on the soil surface, and then leveled and raked, and then sown.