How to solve the root nematode with good effect, and what medicine to use for root nematode

Nematode. Prevention and control: During the cultivated area, octain, avermectin, Yishubao and other granules can be used, and 3-5 kg per mu can be evenly sprinkled.

After occurring, it can be controlled by alternating root irrigation with carbofuran, phosphine, kung fu, veratroline, avermectin, chlorpyrifos, thiazophosphine, etc.

In fact, the best solution is crop rotation.

Due to the production process, content, and hidden ingredients of pesticide companies, please go to the local distributor to seek the ideal insecticide and better solution according to the condition.

Summary. Hello, dear, root nematodes can be carried out with a variety of drugs**, including the following:1

Benzimidazole drugs: such as metronidazole, prothhimazole, etc. 2.

Carbamate drugs: such as methyl ethyl carbamate (MEB), sodium trichloroisocyanurate, etc. 3.

Pyrrolidone: such as oxyclodin, phoxanthion, etc. 4.

Difenoconazole drugs: such as difenoconazole, thiamethoxam, etc. 5.

Natural plant extracts: such as allicin, rotenone, etc. The specific use of the drug should be determined according to the condition and the results of the drug susceptibility test, and it is recommended to do it under the guidance of a professional doctor**.

Hello, dear, root nematodes can be carried out with a variety of drugs**, including the following:1Benzimidazoles:

Such as metronidazole, prothhimazole, etc. 2.Carbamates:

Such as methyl carbamate (MEB), sodium trichloroisocyanurate, etc. 3.Pyrrolidone:

Such as oxyclotin, phosphine, etc. 4.Benrangmu etheroconazole drugs:

Such as difenoconazole, thiamethoxam, etc. 5.Natural Plant Extracts:

Such as allicin, rotenone, etc. The specific use of which drug should be determined according to the condition and the results of the drug number senmin test, and it is recommended to carry out it under the guidance of professional doctor Biji**.

Root nematode control of fruit trees that have just been planted for two months.

Wenchang area, Hainan.

Hello, dear, fruit tree root nematode disease is caused by root nematode, it is a harmful plant disease or local, in severe cases, it can lead to the death of saplings. Here are some ways to prevent it:1

Planting disease-resistant varieties: Choose disease-resistant fruit tree varieties for planting. 2.

Soil disinfection: Before planting fruit trees, the soil is disinfected, using chemicals or organic fertilizers. 3.

Root protection: After the fruit tree is planted, prune the root system in time to keep the root system clean and avoid the root system from being attacked by diseases. 4.

Biological control: the use of natural enemy insects, such as parasitic wasps, ladybugs, etc. 5.

Chemical control: During the growth period of fruit trees, chemical agents can be used for control, but pay attention to the amount of pesticides used and the method of use. 6.

Strengthen management: Strengthen the management of fruit trees, maintain the healthy growth of fruit trees, improve their immunity, and reduce the occurrence of diseases.

Common drugs include nematicides and antibiotics. Commonly used nematicides include thioureas, benzimidazoles, avermectin, etc., while commonly used antibiotics include tetracyclines, streptomycin, etc. A doctor's diagnosis is required on a case-by-case basis, and the appropriate medication is used according to the doctor's recommendation.

At the same time, attention should be paid to the medication method, dosage and course of treatment to avoid adverse reactions and drug resistance problems caused by drug abuse and improper use.

In Wenchang area, Hainan, how to control root nematodes when planting citrine fruit seedlings for two months.

Thank you very much for your patience and waiting, the results of your inquiry are as follows: according to different conditions and needs, there are a variety of drugs that can be used for ** root nematode infection. Common drugs include nematicides and antibiotics.

Commonly used nematicides include thioureas, benzimidazoles, avermectin, etc., while commonly used antibiotics include tetracyclines, streptomycin, etc. A doctor's diagnosis is required on a case-by-case basis, and the appropriate medication is used according to the doctor's recommendation. At the same time, attention should be paid to the medication method, dosage and course of treatment to avoid adverse reactions and drug resistance problems caused by drug abuse and improper use.

Root nematode disease of citrine fruit trees is a common tree disease, if not controlled in time, it will lead to problems such as slow growth, yellowing, and death of trees. Here are some prevention and treatment methods:1

Soil disinfection: Before planting citrine fruit seedlings, the soil can be disinfected, such as spraying or watering with 50% carbendazim wettable powder, 25% fumei double wettable powder, etc., to kill germs and nematodes in the soil. 2.

Adjust the soil environment: keep the soil moist while preventing water accumulation, strengthen fertilization, improve the soil environment, and help improve the disease resistance of citrine fruit trees. 3.

Use of biological agents: Some biological agents can be used, such as Arabidopsis thaliana, Bacillus subtilis, etc., which have a good control effect on nematodes. 4.

Spraying agents: Some special nematicides can be used for spraying, such as benzbi, carboxylthiazide, dimethoate, etc., and use them according to the drug instructions. 5.

Cutting off the infected site: If a nematode-infected site is found on the citrine fruit seedling, it can be cut off immediately to prevent the disease from spreading. In short, the prevention and control of root nematode disease of citrine fruit trees needs to comprehensively consider a variety of factors and comprehensively use a variety of methods to achieve good results.

If the condition is more severe, it is recommended to consult a plant specialist or plant doctor in time**.

1. How to identify: If you observe that the leaves of the plants on the ground are yellow and half-dead, take off the plants in time, or pick up a little soil to expose the root system a little, if you find nodules on the root system, most of them are root-knot nematodes.

2. Pharmaceutical prevention and control: root-knot nematodes can be contagious and easy to administer, 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.

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, you can mix 2 spoons of Ligan sand granules into the soil to prevent root-knot nematodes**.

1. Overhead flower pots: Flower friends who raise flowers in the open air can pad the flower pots and make the bottom of the pot 5cm away from the ground, so as to avoid rainwater carrying insect eggs from entering the bottom of the pot and infecting it through water and soil.

2. Clean water quality: When watering flowers, make sure that the water quality is clean and avoid watering rainwater that has fallen on the ground.

3. Regular pot change: When raising flowers at home, it is necessary to change the potting soil regularly, such as once a year, which can not only prevent the occurrence of root-knot nematodes, but also prevent soil compaction and nutrient loss.

4. Pharmaceutical prevention: Usually raising flowers and burying some Ligensha granules in the soil can also prevent the occurrence of 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.

Root-knot nematode is a common insect pest in agricultural production, and its host range is wide, often harmful to melons, nightshades, beans and radishes, carrots, lettuce, cabbage and other vegetables, and can also spread fungal and bacterial diseases, which are more harmful to crops.

So what medicine works well with root-knot nematodes? Root-knot nematode is a common insect pest in agricultural production, and its host range is wide, often harmful to melons, nightshades, beans and radishes, carrots, lettuce, cabbage and other vegetables, and can also spread fungal and bacterial diseases, which are more harmful to crops.

So what medicine works well with root-knot nematodes?

1. Avermectin.

When abamectin is used to control root-knot nematodes, the amount of avermectin applied per mu is generally 2-4 kg.

If the roots are irrigated, farmers can use avermectin to mix 1,000 times the water, and the liquid medicine for each plant is kilograms, and the use of 5% avermectin to water is generally about 2,000 times.

2. Thiazophosphine.

When thiazolphosphine is used, the method of flushing is generally used.

You can choose 20% thiazolphosphine water agent, 500g with water to apply about 3-6 acres, or 500g with water to apply about 1200 square meters.

Farmers can choose the right amount of vegetables according to their growth status.

When irrigating roots, it can be diluted 6000-9000 times with 20% thiazolphosphine aqueous agent.

3. Lu Fuda.

For nightshade vegetables such as tomatoes, Lufuda uses root irrigation, with an average of milliliters per plant.

Farmers use 6-8 amounts of water according to the different growing stages of the vegetables, while also ensuring good soil moisture. Clearance.

4. Chitin.

Chitin can induce plants to produce chitinase, which can break down chitoses that absorb nematodes and eggs, as well as chitinase, which inhibits nematodes, resulting in the death of nematodes and eggs.

It is generally used in combination with fungicides and insecticides.

5. Avi thiazophosphine.

Avi-thiazolphosphine is a compound of avermectin and thiazophosphine, avermectin is a biological root-knot nematode control agent, which has contact killing and stomach toxicity effects.

It acts on the nervous system of pests to achieve the purpose of killing nematodes.

Thiazophosphine is a contact and systemic nematicide lenient, which can hinder the activity of nematodes at low doses and prevent the invasion of nematodes into plant roots.

After root-knot nematodes damage crops, the yield can generally be reduced by 20%-30%, and in severe cases, the yield can be reduced by 60%, or even no harvest, and once it is introduced, it is very difficult to **, which is a headache for farmers.

If you want to avoid the harm of root-knot nematode, you must master the use of the above agents.

Root-knot nematodes are effective with thiazolephos.

Root-knot nematode is a pest that seriously harms the growth of cucumbers, mainly harming the roots of cucumbers, making the roots swollen and deformed, and chicken-claw-shaped. When insect infestation occurs on the fibrous roots and lateral roots of cucumbers, small milky nematodes are hidden in the root knots. New roots that grow on the root knot will become infected again and form root-knot-like tumors.

Thiazophos is a non-fumigation type of high-efficiency, low-toxicity, low-residue organophosphorus nematicide, mainly used to control nematodes, aphids, etc., is one of the few nematicide products, suitable for the production of vegetable bases.

It has a good control effect on various nematodes such as root-knot nematodes, root rot nematodes, stem nematodes, cyst nematodes, etc., and has a good plant conduction effect, which can prevent invasion and have a killing effect on invading nematodes. The annual crop is effective for 2-3 months, the perennial crop is effective for 4-6 months, and the dosage is kilogram mu, which is generally used twice a season in Shandong vegetable area, 4-6 kg each time.

Biological characteristics of root-knot nematodes

Root-knot nematodes have a wide range of hosts and can harm more than 130 crops in 39 families. Nematodes are very small and difficult to see with the naked eye. Nematodes are mostly distributed in 0-20 cm soil, especially in 3-9 cm soil.

Dioecious, female adult round pear-shaped, male adult linear, often eggs or second-instar larvae left in the soil or manure with plant residues for overwintering or the next year when the environment is suitable, the second-instar larvae invade from the tender roots, reproductive harm.

Nematodes can be transmitted through infected soil or seedlings and irrigation water. Under the condition of soil temperature 25 -30 and soil moisture of 40 -70, nematodes multiply quickly, stop their activities below 10, and die at 55 hours and 10 minutes. It can survive for 1 year in host-free conditions.