What kind of medicine is used for upland rice underground insects, and what kind of medicine is used

This is not the Academy of Agricultural Sciences.

<> rice licking insect generally refers to horseshoe crabs, horseshoe crabs are not pests, it will not harm rice, so there is no need to spray. The horseshoe crab is a small crustacean with a body length of about 100 mm, its large dorsal shell is oval, its abdomen is slender and soft and flexible, its long tail is forked, and some of its leaf-like subsidiary horseshoe crabs have limbs. The horseshoe crab is a typical bottom-dwelling animal that feeds mainly on the detritus of the organism, but also captures small aquatic organisms and their larvae.

It is better to use pine borer agent for rice negative mud worms.

At present, the control of rice negative mudworm is still mainly based on pesticides. According to the field investigation, the application effect was best when a large number of adults mated and had not yet left the seedling field. The application of pesticides at the Honda stage is mastered at the larval incubation stage. The main agent is 50% pine borer 800 times solution.

The solvent method is generally used for thiophos, and the trimethylamine aqueous solution method or toluene-acetone dual solvent method can also be used for section collapse. If toluene is used as the solvent, cuprous chloride is used as the catalyst and sodium carbonate is used as the acid binding agent, and the reaction temperature is 90.

Pinus borer has a good control effect on rice, soybean, cotton, fruit trees, vegetables and other crop pests, especially the special effect of rice borer. Such as large borer, two borer, three borer, rice planthopper, rice leafhopper, aphid hand worm, red spider, cotton bollworm, soybean heartworm, tea beetle, etc., 50g of active ingredients per mu are applied, and the control effect should be good, but the effect of killing mite eggs is small. This product sometimes causes pesticide damage to cruciferous vegetables.

Introduction to rice negative mudworms

Negative rice mud worm is mainly an important pest of Chinese rice, harming seedlings and seedlings in paddy fields. Adults and larvae feed on mesophyll along the veins, and through the epidermis at the tips of the leaves. All the seedlings that were seriously damaged in the big year turned white, or caused the seedlings to grow yellow and weak, uneven heading, and reduced rice yield.

In addition to rice, the affected crops include millet, millet, wheat, barley, corn, reed, bran grass, and callus white.

In the southern rice area, the overwintering adults resume their activities from March to April, and the peak of activity is from late April to early May, when they feed on gramineous weeds such as weeds near dormant sites, and then move into rice seedling fields and Honda, where they lay eggs at the tail and feed after the larvae hatch, and the damage is from April to June, and the larvae bloom in mid to late May, which is harmful to early rice Honda. In late May and early June, pupation began, and in early to mid-June, there were more and more new adults emerging that year.

The above content refers to the encyclopedia - killing pine borer.

Aphids are herbivorous insects, also known as greasy insects, honeyworms, etc. , including all members of the General Aphid family. Most species are oligotrophic or monogamous, and a few are polyphagia.

Some species are important pests of economic plants such as grains, cotton, oil, hemp, tea, sugar, vegetables, tobacco, fruits, medicines and trees. Let's take a look at what are the special drugs for controlling aphids!

A type of insecticide.

Malathion is a yellow oily liquid, slightly soluble in water, soluble in a variety of organic solvents. It is a highly effective, low-toxicity, broad-spectrum insecticide and acaricide. It has contact killing, stomach poisoning and certain fumigation effect on pests.

There is no systemic and the residual effect period is short. The general effect is 7 days. It is effective for suction or chewing door pests, and is suitable for the control of leaf pests of fruit trees, vegetables and other crops, as well as sanitary and storage pests.

It is less toxic to humans and animals and more toxic to bees and fish.

Thiophos. Killing pine has a good control effect on rice, soybean, cotton, fruit trees, vegetables and other crop pests, especially the special medicine for the prevention and control of rice borer. Such as two borer, two borer, loss of vertical two borer, rice planthopper, rice leafhopper, aphid, red spider, cotton bollworm, soybean heartworm, tea beetle, etc.

Apply 50-75g (active ingredient) per mu, the control effect is good, but the killing effect is small. Sometimes it is harmful to cruciferous vegetables.

Anti-aphid. Anti-aphid is a selective aphidicide with contact killing, fumigation and foliar osmotic effects. It is effective in controlling all aphids except cotton aphid, and is also effective against organophosphate-resistant aphids.

Insecticides are fast-acting, but have a short residual effect. It is an ideal agent for crop safety, harmlessness to natural enemies and comprehensive control.

Deltamethrin. Deltamethrin is one of the most toxic pyrethroid insecticides, which is harmful to cotton bollworm, cotton bollworm, cabbage worm, Spodoptera litura, Spodoptera fumigua, leaf-eating beetle, aphid, stinkhorn, leaf-pinned cicada, heart-eating worm, spotted loon fly, caterpillar, inchworm and bridge-building insects.

Summary. Good afternoon, dear, glad to answer for you, 1Earthworms can be killed with trichlorfon powder, which only needs to be sprinkled on the surface of the soil, and then mixed with the soil and watered, which can have an effect.

If you want to kill an earthworm, the most direct way is to soak in water, because the earthworm is afraid of water, as long as you water a lot, let the earthworm in the soil be soaked in water overnight, it will crawl out of the soil on its own. 2.If the number of earthworms is too large, you can use dianong and ground insect elimination.

When using, in a place where earthworms are concentrated, mix the diluted dianon into the soil. Pesticides must not be abused when used, because pesticides are not omnipotent, and too many pesticides will cause pesticide damage. 3.

If it is used on the lawn, it can generally be sprayed with 80-100 kg of water per 250 grams of drug after 2-3 days of lawn mowing, and the spraying area is 330 square meters. When using, you can also appropriately increase the water consumption, which helps the liquid medicine to infiltrate and contact pests, and the nursery land can be properly sprayed on the surface according to the amount of 500 grams per mu with water.

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Good afternoon, dear, glad to answer for you, 1Earthworms can be killed with trichlorfon powder, which only needs to be sprinkled on the surface of the soil, and then mixed with the soil and watered, which can have an effect. If you want to kill an earthworm, the most direct way is to soak it in water, because the earthworm is afraid of water, as long as you water a lot, let the earthworm in the soil be soaked in water for a night, and it will crawl out of the soil on its own.

2.If the number of earthworms is too large, you can use dianong and ground insects. When using, in the place where the earthworms are concentrated, mix the diluted Diyanon main shed into the soil.

Pesticides must not be abused when used, because pesticides are not omnipotent, and too many pesticides will cause pesticide damage. 3.If it is used on the lawn, it can generally be sprayed with 80-100 kg of water per 250 grams of drug after 2-3 days of lawn mowing, and the spraying area is 330 square meters.

When using, you can also appropriately increase the water consumption, which helps the liquid medicine to infiltrate and contact pests, and the nursery land can be properly sprayed on the surface according to the amount of 500 grams per mu with water.

Underground pests work well with the following pesticides:

1. Imidacloprid.

Control object: to control mole crickets, 10% imidacloprid 1500 times liquid can be mixed with fried wheat bran and sprinkled to trap; When a large number of beetle adults occur, imidacloprid (one or two grams of pure medicine per 667 square meters) can be sprayed with water.

Second, Tiannuo line net.

Control object: Tiannuo line net is an insecticide, nematicide, a variety of crops of root-knot nematodes, root maggots, grubs, small tigers, mole crickets, needleworms and other underground pests have a good killing effect. It has stomach poisoning, contact killing and fumigation effects.

3. Protecting the land.

Control object: It can control underground pests of vegetables, melons and fruits, cotton and linen, sugarcane, soybeans and flowers. It is safe for crops and has an effective life of up to 1 month. Three or four kilograms of medicine per 667 square meters are sprinkled or furrowed at the seedbed stage and at the adult plant stage.

Fourth, the ground maggot.

Control object: 48% maggot emulsifiable concentrate can control underground pests of leek, tomato, cucumber, soybean, cotton and corn and other crops.

The pesticides used to control underground pests include imidacloprid, methylisomerofol granules, phosphine granules, phosphine emulsifiable concentrate, 3911, phosphine, trichlorfon, etc.

I don't know what kind of worm you're talking about, you can figure out what worm it is first and then prescribe the right medicine:

First, the focus of rice borer should be to do a good job in the prevention and control of the second generation of 2 borers and the 2 generations of 3 borers in some areas, and focus on the paddy fields where the rice is in the boot to the full head. 1 kg of 5% insecticidal double granules per mu, 150 ml-200 ml of 25% insecticidal double aqueous agent per mu, or 100 ml of 25% insecticidal double aqueous agent plus 100 ml of BT emulsion, choose one, 60 kg -75 kg of conventional spray of water, or 5 kg of water kg of low-volume spray.

2. Rice planthoppers should be mastered at the peak of small nymphs, and pesticides should be applied when the number of insects per 100 bushes reaches more than 1500. Attention should be paid to starting from the four sides of the field, from the outside to the inside, and the encirclement and annihilation should be carried out. The spraying should be uniform and thoughtful, and attention should be paid to spraying the liquid in the middle and lower part of the rice plant.

Use 20g-25g of promediphin wettable powder, or 20g-25g of 25% euclide wettable powder, or 150ml of 20% leafhopper powder emulsifiable concentrate, choose one of 75kg-100kg conventional spray on water, or 5kg kg of low spray on water.

3. Rice bracts should be used to focus on late rice fields, grasp the peak period of young larvae, and apply pesticides when there are 10-20 insects per 100 bushes of rice. 75 g-100 g of 90% crystal trichlorfon per mu, or 100 ml-250 ml of 50% pine borer emulsifiable concentrate, or 150 ml-200 ml of BT emulsion, choose one, 75 kg -100 kg of conventional spray of water, or 5 kg of low-volume spray of water.

Fourth, the rice longitudinal leaf borer focuses on the prevention and control of the main pest. In the early larval stage, there are 15-20 small insect bracts per 100 bushes of rice, or 20 worms per 100 bushes at the panicle stage. 150 ml-200 ml of 25% insecticidal double aqueous agent per mu, or 72 ml of 50% pine borer EC, choose one, 60 kg to 72 kg of water for conventional spray, or 5 kg of water for low spray.

The application time should be in the evening.