How to treat leek maggots? What should I do if the leek root grows maggots?

According to the maggot adult, the sweet and sour solution can be placed in the field to trap the adult insects and reduce the damage to leeks.

It can be covered with plastic film but must be covered tightly, and the temperature can reach more than 40 degrees after covering, which can basically kill all the maggots in the geography.

Leek fields can be filled with a little ground wave taunt. The land does not come out of the old quality area. The land does not come out of Feng. Zhi region.

Every winter, leek maggots are like a great enemy, how to prevent and control them correctly, they will be eliminated in one fell swoop. According to the experience of recent years, to eliminate maggots and black-headed maggots, how to treat leek black-headed maggots? How to treat leek blackhead maggots? Leeks of black-headed maggots.

1. Scientific fertilization.

Do not apply organic fertilizer or cake fertilizer that has not been composted and rotted. The well-rotted fertilizer should be covered with soil after ditching to prevent the adult from laying eggs.

2. Remove the breeding grounds of leek maggots.

Leek maggots are more sensitive to the smell of onions and garlic, like to eat putrid things, and lay eggs on them, so they should clean up the dead branches and weeds in the vegetable furrow in time to reduce the hatching rate of larvae and the emergence rate of adults.

1. Scientific fertilization, do not apply organic fertilizer or cake fertilizer that has not been composted. The well-rotted fertilizer should be covered with soil after ditching to prevent the adult from laying eggs.

2. Remove the leek maggot breeding place, the leek maggot is more sensitive to the smell of onion and garlic, likes to eat putrid things, and lays eggs on it, and timely clean up the dead branches and weeds in the vegetable furrow, reduce the larval hatching rate and adult feuding rate.

3. Prevention and control of leek roots, use bamboo sticks or wooden sticks to remove the soil around the leek roots during the peak period of leek maggots, and dry the roots and soil, through 1weeks laterMost of the larvae can be sunburned.

Apply grass and wood ash to the ditch before covering the soil.

After covering the soil tightly, after applying grass and wood ash, you can water as late as possible according to the situation, so as to keep the soil from being too wet, this method has a good control effect, and the plant ash is also a good fertilizer, which can promote the growth of leeks.

Pattern of occurrence:

Leek maggots generally overwinter as larvae dormant in the soil or bulbs at a depth of 3 4 cm around the leek roots, and when the leeks germinate in March after the greenhouse is buckled in the greenhouse, the larvae begin to feed actively, and most of the overwintering larvae move to the surface 1 2 cm from late March to mid-May to pupate.

From April to mid-May, the emergence of adult worms multiplies, generally in April to May is the peak period of the damage of the shed and the open field, from July to August due to the high temperature, and the aging of the plant is weakened, to the end of September due to the suitable environment of the leek maggot continues to be harmed, and from December to February of the following year (greenhouse leeks) is the serious damage period.

Leek maggot is a kind of underground pest with strong resistance, farmers who often grow garlic or leeks know that if the special drug with a good effect of eliminating leek maggot is used several times, the efficacy will be significantly reduced! Therefore, the prevention of leek maggot should be carried out in a scientific and reasonable management method. For leek maggots, agriculture and animal husbandry prevention should be done first.

The first is to pay attention to effective fertilizer, unfermented organic fertilizer, with more pathogenic bacteria, is not recommended here. The second is to carry out effective seed rotation. For fields with frequent maggots, it is possible to carry out two to three years of crop rotation with other green plants of different disciplines!

The actual effect is relatively good.

In the case of the beginning of the growth and development of leeks in early spring or the rapid cover of the film in autumn, find a warmer temperature, open the surface of the cultivation soil, expose the roots of the leeks from the soil, and dry it for six or seven days, so that a part of the maggots can be killed. But now that the season is in April, this method is not suitable at this stage. You've seen sticky fly boards, we can make maggot pots with similar basic principles.

Use sugar, vinegar, wine, water, trichlorfon according to the proportion of the aqueous solution as bait, and then put the bait into the pot, so that a maggot pot is done, and then two to three maggot pots in 1 acre of leeks, so that you can use the maggot pot to lure the worms into the pot to successfully eliminate.

The total number of leek maggots has gradually increased recently, causing a lot of distress to farmers, because the daily life of leek maggots is on the surface of the soil, which brings trouble to prevention, especially many underground pests are also difficult to cut, farmers are discouraged, and it is more serious to cause a lot of leeks to fall seedlings and yellow seedlings. And many underground pest drugs are resistant to leek maggots, so that the underground pest drugs are used more and more, and the pesticide residues of leeks are improved, which is harmful to the human body. In order to reduce the pesticide residues of leeks, we use biological pesticides to prevent leeks and underground pests, but biological pesticides are relatively expensive, but they are much better than chemical fertilizers such as organophosphorus for the body, and biological pesticides are recommended.

Because the leek maggot is more sensitive to the taste of onions, ginger and garlic, and loves to eat rotten items, please lay eggs on it, so you can use garlic straw to soak water in April and May, and there are sprouts at home Garlic is also soaked in the inside, used to pour on the roots, and at the same time, it is necessary to deal with the dead branches and leaves and weeds in the vegetable furrow in time to reduce the reproduction rate of larvae and the mask rate of nymphs. In the peak period of leek maggot, use bamboo skewers or sticks to remove the soil around the leek roots, dry the roots and dry the soil, and most of the larvae can be sunburned to death after 1 week. After filling the ditch before applying grass ash, the soil is covered tightly, and the grass ash can be watered as late as possible according to the situation, so as to keep the soil layer not too wet, the prevention effect of this method is very good, the grass ash or a good chemical fertilizer, can promote the growth and development of leeks.

It can be solved with some medications, watering, and the use of fertilizers can be reduced, so that the problem can be avoided.

It can be removed manually. You can use some quicklime for disinfection and sterilization, you can also use some solid ash for removal, you can use some pesticides to remove, you can use some pesticides, you can also use some chemicals.

It is necessary to pay attention to the condition of the soil, be sure to keep it clean and hygienic, water less, apply less fertilizer, and spray pesticides, so that it can be better solved.

1.What is a leek maggot?

Leek is a common vegetable in our country, this vegetable is nutritious, delicious, and is one of the essential ingredients on the table of many people. However, in the process of growing leeks, some people will encounter the problem of leeks having maggots.

Leek maggots are small worms that look like earthworms, they hide in the soil and parasitize near the roots of leeks, which can seriously harm the growth of leeks.

2.Leeks are harmed by maggots.

The harm of leek maggot is mainly manifested in the following aspects:

Damage to leek roots and hinder nutrient absorption. Leeks have maggots parasitic on the roots of leeks, which will absorb a large amount of nutrients from leeks, resulting in the weakening of the root system of leeks and affecting the normal growth of leeks.

Infection with pathogenic bacteria, causing leek disease. Leek town and maggots will invade the root of the leek, invade the pith inside, and as the pith is dissolved, bacteria are produced, resulting in symptoms such as wilting and blackening of the tip of the leek.

Affect the quality of leeks and reduce the value of goods. Affected by the parasitism of leeks and maggots, leeks will become yellow, shrink and deform, so that leeks can not be marketed, which will reduce the value of leeks.

3.Leeks have the control of maggots.

In view of the harm of ground maggots in leeks, farmers can take the following measures to prevent and control them:

Crop rotation system. Give full play to the soil fertility, do not plant leeks continuously, especially different kinds of leeks, to avoid maggots and germs parasitic on the same piece of land during the long shed period.

Carry out ground toad control. The ground toad is the natural enemy of the leek maggot, during the breeding period, the farmer can buy the artificially bred ground toad, put them into the field where the leek grows, for it to prey on the leek maggot, and prevent the harm of the ground maggot.

Rotation. Leeks planted on different lands rarely have maggots, which can be recycled to balance the ecological community of the soil. Leeks can be planted at different times to achieve the separation of the leek growth cycle and to replace the soil.

Drought treatment. Dry soil can prevent damage to leeks by maggot larvae. Proper drought conditions help to noose, dry, compress the internal membrane neck of poultry and kill locusts, and the locust control mechanism is consistent and can also be used for leek maggot control.

4.How to identify maggots with ground.

In order to identify the presence of ground maggots in leeks in a timely manner and take effective measures to prevent and control them, farmers can do the following:

Observe the growth of leeks, if the leeks grow slowly, yellow, leave ash, and the root system is fibrous and broken, it may be infested by leek maggots.

Pull out the infested leeks and observe the rhizosphere, if there are small white nematodes with maggots and feces, they are maggots with ground maggots.

Check the soil layer, and if you find a foreign object with maggots, confirm the presence of maggots.

5.Summary.

As a pest that has serious harm to the growth of leeks, maggots bring a lot of trouble to farmers to grow leeks. To this end, farmers need to strengthen the control of leek maggot and adopt a variety of measures to prevent and control it together. In addition, it was found that leeks have maggots for timely identification and prevention to ensure the normal growth of leeks and provide consumers with high-quality and healthy leek products.

<> prevention and control of leek maggots, you can dig up the soil of its root system, let the sunlight sunburn the leek maggots, you can also use sweet and sour wine and pesticides to trap and kill leek maggots, when the situation is serious, we can also use insecticides to spray the plant to prevent and control, in the breeding process, pay attention to the application of rotten fertilizer, but also regularly weed.

1. Sunlight exposure.

If you want to control leek maggots, then you can dig up the soil around the leek roots and let them receive sunlight, so that about a week or so, the maggots can be sunburned, and then apply a little plant ash and then cover the soil, in addition, the plant ash can also play a role in promoting the growth of leeks.

2. Sweet and sour wine and booby-trap.

Leek maggots are sensitive to sugar, vinegar and wine, so these materials can also be used to trap leek maggots by combining sugar, vinegar, wine and 90% trichlorfon according to version 3:1:10:

The ratio of the hail is mixed and prepared into a booby trap box, and placed next to the leek field, and the maggots can be booby-trapped quickly.

3. Drugs**.

If you want to control leek maggots, you can also use drugs to prevent and control, in the early stage of the disease, spray leeks with 50% octane scale emulsifiable concentrate, and spray ** once after ten days, so that you can completely kill pests, pay attention to the insecticides need to be diluted according to the instructions for use.

4. Fertilization and weeding.

If you want to control leek maggots, then you also need reasonable fertilization and regular weeding, fertilizer needs to be selected after decay, after applying to cover the soil, to avoid adult eggs, in the management of leeks, to regularly remove dead leaves and weeds in the vegetable field, etc., to reduce the larval hatching rate and adult feuding rate.

1. Scientific fertilization, do not apply organic fertilizer or cake fertilizer that has not been composted. The well-rotted fertilizer should be covered with soil after ditching to prevent the adult from laying eggs.

2. Remove the leek maggot breeding place, the leek maggot is more sensitive to the smell of onion and garlic, likes to eat putrid things, and lays eggs on it, and timely clean up the dead branches and weeds in the vegetable furrow, reduce the larval hatching rate and adult feuding rate.

3. Prevention and control of leek roots: In the peak period of leek maggots, use bamboo sticks or wooden sticks to remove the soil around the leek roots, and dry the roots and soil, and most of the larvae can be sunburned to death after 1 week. After covering the soil before the ditch is applied to the grass ash and then covered with soil tightly, after applying the grass and wood ash, it can be watered as late as possible according to the situation, so as to keep the soil from being too wet, the prevention and control effect of this method is very good, and the grass ash is still a good fertilizer for spring planting, which can promote the growth of leeks.

1. Application of plant ash: it can be carried out in early spring or after the leek harvest. Sprinkle the grass ash (not rained) on the furrow surface, hoe evenly and hoe thoroughly, so that the ash is mixed into the soil, or open a ditch (it is advisable to see the roots) and apply it into the ditch, and cover the soil tightly.

Hoeing and applying ash is not conducive to the life of leek maggots, so as to play a role in control, and loosen the soil, increase the content of phosphorus and potassium fertilizer, can make leek seedlings strong and strong, increase yield.

2. Ammonia fertilizer is applied with water: during the growth of leeks, 15-25 kg of ammonia per mu is used, diluted by 80-100 times, and the roots are irrigated or applied with water, which has a significant effect on killing leek maggots. Combined with watering, 15-20 kg of ammonium bicarbonate per mu can also effectively kill larvae.

3. Watering fresh urine: After harvesting leeks for every 1 time, immediately water the leek stalls with fresh urine. When the soil is wet, do not use water, when the soil is dry, 50 water, and grab 1 handful of plant ash after watering.