How to control root knot nematodes? What is used to treat root knot nematodes is simple and thorough

Root-knot nematodes reproduce quickly and cause serious harm, so early prevention and control is the best way.

Use insect-free soil for seedlings to raise. When transplanting, remove the insect-bearing seedlings or remove the "root nodules".

Remove the carcass of the insect, reduce the density of the insect population, and burn the roots of the insect after drying.

Turn the soil deeply. Turning the topsoil below 25 cm can reduce the occurrence of insect infestations.

Crop rotation for insect control. In fields where nematodes occur a lot, changing to insect resistant (tolerant) crops such as grasses, onions, garlic, leeks, peppers, cabbage, cauliflower, etc., or planting aquatic vegetables can reduce the occurrence of nematodes.

High (low) temperature inhibition insects. Take advantage of the high temperature in summer and the leisure season, ridge irrigation and mulching, and seal the shed for two weeks. The occurrence of nematodes can be inhibited by using low-temperature freeze in winter.

Chemical control.

Prevention and control agents such as thiazolephos, avermectin, etc.

Microbial control.

We need to apply some nematode-control biofertilizers (for example, containing Trichoderma harzianum, Lavender purpurple, etc.) to improve the soil microbial flora, effectively prevent the occurrence of nematodes, enhance growth, and reduce the harm of root-knot nematodes.

Electricity Prevention and Control Act. The use of physical plant protection technology can effectively prevent plant diseases and pests throughout the growth period, among which root-knot nematode disease can be controlled by soil electrodisinfection method or soil electrotreatment technology. Root-knot nematodes are weak to current and voltage, and the 3DT series soil continuous cropping obstacle electric treatment machine can effectively kill root-knot nematodes in the soil by applying DC 30-800 volts and currents exceeding 50A.

Before transplanting, use avermectin granules or 5% butylthioc carbofuran granules with three catties of sprinkling per mu to prevent root-knot nematodes, and find that root-knot nematodes are sprinkled with avermectin thiazolephos compound sprinkle or 20% thiazolphos irrigation roots can play a good role in prevention and control, and now there is also a product fluopyramide amide to control root-knot nematodes is also good.

There is a good product, only for the organic planting base, with kilograms per mu. Let's look it up.

He mainly harms the root system of the crop, and a lot of nodules grow on the root system when infected. When the damage is more serious, the plants on the ground will slowly become very slow to develop, and the leaves will become dull and yellow, which will directly affect the yield of the later fruits. There are also some roots that will rot, causing the plant to die, which is really very harmful.

The prevention and control has high temperature prevention and control, and the high temperature stuffy shed will kill all the bacteria and harmful bacteria in the soil.

Chemical control of avermectin has a fast effect, but there are pesticide residues, and it is easy to produce resistance, and the effect is becoming less and less obvious.

Although the effect of biological control and control line is not as fast as chemical control, there is no pesticide residue.

If you want to completely ** root-knot nematode, you can use wireless time granules, dissolve them into clean water, and irrigate the roots once every 10 days, in addition, you can also use the thread treatment water agent, irrigating the root system around can effectively kill the root-knot nematode, and you can also use electric disinfection to effectively kill the root-knot nematode.

The first method of root-knot nematode1. Wireless granules

Many people do not know what to use to treat root-knot nematode is simple and thorough, root-knot nematode has great damage to the root system of the plant, you can use wireless granules, dissolve it into clean water, the effect can be up to about 70 days, every 10 days or so to irrigate the roots.

2. Line must treat water

The drip irrigation and spraying of the root knot nematode agent is also relatively fast, and the drip irrigation and spraying of the line treatment water agent can be watered, which can be poured around the root system, which can quickly kill the nematode in a short period of time, and the effect time can be as long as a quarter.

3. Physical prevention and control

Appropriate use of physical control can also be effective root-knot nematodes, for soil can use electric disinfection, 50A current can effectively kill root-knot nematodes in the soil, this method is suitable for use in a large area of root-knot nematodes, can be effective ** this insect pest.

4. Top dressing fertilizer

During the growth period, some organic fertilizer, phosphorus and potassium fertilizer can be appropriately applied, which can improve the disease resistance of plants, and some basal fertilizer can be applied to the suitable planting, and superphosphate can be applied to the leaves, so as to reduce the disease, so as to achieve the effect of prevention.

In recent years, root-knot nematodes have become a big problem for growers, and when root-knot nematodes, not only the investment is high, but also difficult.

Root-knot nematode is a worldwide pest, generally the damage greenhouse can reduce the yield by 20%-30%, the serious greenhouse yield reduction can reach 60%, or even extinction, the degree of harm is quite serious, and once it is difficult to introduce.

So, is there any way to control root-knot nematodes? What kind of medicine is good for root-knot nematodes? Let's take a look.

Prevention and control methods of root-knot nematode 1, rotation of vegetable fields with root-knot nematodes, the implementation of crop rotation, especially rice and onion, garlic and other rotation, the control of root-knot nematodes is better.

Do not rotate with nematode-prone vegetables such as eggplant, tomato, celery, lettuce, carrots and other vegetables.

2. Seedbed disinfection or soilless seedling seedbed is one of the important ways for root-knot nematode transmission, if the seedbed is not treated, it is easy to spread root-knot nematode to the field, and the crop is harmed by root-knot nematode in the early stage of its yield.

The use of soilless seedlings is an important measure to avoid root-knot nematode damage.

If the seedbed area is very large, the seedbed disinfection measures can be adopted, and the 35% Weibaimu water agent (8-10kg mu) is fully mixed with the soil, and then covered with plastic film for fumigation.

3. Irrigation of 10-15cm deep in flooded insecticidal and seriously ill fields for 20-30 days will suffocate nematodes due to lack of oxygen.

This one-season rice plant not only kills nematodes, but also does not cause the field to be barren.

4. Deep turning root knot nematodes are mostly distributed in the topsoil layer, and deep turning can reduce the damage.

Before sowing, deep ploughing is more than 25cm deep, and the possible nematodes are turned deep into the soil, which can reduce the damage.

5. The use of root-knot nematode-resistant varieties or rootstock varieties to choose disease-resistant or disease-resistant vegetable varieties can greatly reduce the damage of various diseases.

In comparison, there are varieties with high resistance to root-knot nematodes in Biyouzhou, and new Israeli tomato varieties FA-593 and FA-1420 are more resistant to nematodes.

What medicine is good for root-knot nematodes, root-knot nematodes can be infected, easy to infect, and can be controlled with Root Sand.

Remove the mound of soil attached to the root system, cut off all the nodules on the root system, and destroy it. Attack.

Prepare the emulsifiable concentrate mixed with 1500 times the water, dilute the roots of the soaked plants, and be careful not to soak on the leaves, so as not to burn the leaves.

After soaking, dry the root system of the plant, prepare a new pot soil for planting, and when potting, the hand cover can be mixed with 2 spoons of root sand granules in the soil to prevent root-knot nematodes**.

What drugs are used to root knot nematodes and how to prevent them?

Hello, as a soil-borne disease, the problem of root-knot nematodes has always been a source of distress for many people. Root-knot nematode is a harmful fungus that invades the root and secretes toxins that cause the roots to form small nodules or root packets, which affect the root growth of crops, water and nutrient absorption. Mild leaves will turn yellow and wilt (the most obvious at noon when the temperature is the highest), and severe ones will not only turn yellow, but the plants will also stop growing and die, thus affecting the yield of crops.

The solution to the nematode problem, the prevention and control of the letter is greater than **, if the larvae can be killed before entering the roots, it is the best, because after entering the roots, the pesticide needs to be absorbed by the roots, and the effect will be relatively poor. Therefore, sheds with nematode problems can be prevented in advance. Qianmei Plant Protection Company's eight fungus No. is a product that treats bacteria with bacteria, endoparasitic fungi, which can not only parasitize nematode eggs, kill eggs, but also infect larvae and adults, metabolize chitinase and derivatives, penetrate the nematode egg shell, larvae and adult body walls, and destroy their reproduction and metabolism, so as to achieve the dual effect of prevention and control.

It can be sprinkled before land preparation, and 2 kg per mu can be used (application depth 8-20cm); It can also be planted in holes, with 1 kg per mu (the depth of application does not exceed 10cm); It can also be used to apply drip in the friend rotation irrigation, 1-2 kg per mu, long effective period, and does not hurt the roots and seedlings, no residue, nematicide can also improve the soil and promote crop growth.