What are the precautions for the control of leek pests?

The pests of leeks mainly include the late-eyed mushroom mosquito, the leek moth, the yellow-striped jumping beetle, the ground maggot (seed fly and the onion fly), etc., especially the leek-eyed mushroom mosquito is the most harmful, is the main pest in the production of leeks, and its larvae are commonly known as leek maggots, leek root maggots, and leek maggots. In the control of leek pests, high-efficiency, low-toxicity, low-residue insecticides should be used, and the relevant technical specifications should be strictly observed.

1) 48% chlorpyrifos EC 60 ml per 667 meters, up to 75 ml, spray, up to 3 times per season crop, with a safety interval of more than 7 days.

2) 50% phosphine EC 600 ml per 667 meters, up to 750 ml, root irrigation, up to 2 times per season crop, safety interval of more than 10 days.

3) 90% trichlorfon crystals 60 grams per 667 meters, up to 100 grams, spray, up to 6 times per season of crops, with a safety interval of more than 7 days.

4) 10% cypermethrin EC 20 ml per 667 meters, up to 30 ml, spray, up to 3 times per season crop, safety interval of more than 6 days.

5) Deltamethrin EC 20 ml per 667 meters, up to 40 ml, spray, up to 3 times per crop, safety interval of more than 2 days.

6) 20% deltamethrin EC 25 ml per 667 meters, up to 60 ml, spray, up to 3 times per season crop, safety interval of more than 7 days.

7) Cyhalothrin EC 26 ml per 667 meters, up to 60 ml, spray, up to 3 times per season crop, safety interval of more than 7 days.

8) 5% cis-fenvalerate EC 10 ml per 667 meters, up to 20 ml, spray, up to 3 times per season crop, safety interval of more than 3 days.

9) 10% cis-cypermethrin EC 6 ml per 667 meters, up to 10 ml, spray, up to 3 times per season crop, with a safety interval of more than 3 days.

Leek seeds are the seeds of leeks. It is a black particulate matter. It can be used as a medicine or for people to eat, although there are many ways to nourish the kidneys and aphrodisiac, but the most effective is food supplements and some special ways to exercise, please see the references**:

What are the methods and foods for nourishing the kidneys.

You can learn about food for free. Leek seeds are a kind of Chinese medicinal material, which can replenish blood and dispel stasis. It dissipates after people take it.

Congestion can also lead to stagnation of air conduction. When people have bruising, swollen joints, and pain, they can take some chives from the seeds. Also, when people suffer from enteritis, nausea, nausea, and vomiting, they can take chive seeds in time.

Significantly reduce symptoms. Gourd Daji wings.

Ingredients: 500 grams of shark fin in Shuifa, 250 grams of breast meat, 50 grams of pork fat, 40 grams of Shuifa Dajin Hook Sea Rice, 3 egg whites.

The practice of gourd Daji wings:

1. Puree the chicken breast and fatty meat, add egg whites and broth, stir well into chicken ingredients, wash the shark fins with water, add the broth, green onions, ginger slices, and peppercorns and steam for 2 hours.

2. Grease the large flat plate, make the chicken material into the shape of 12 gourds in the plate, put Haimian on the top of the gourd, steam for 10 minutes and take it out.

3. Put pepper oil in the frying spoon, three sets of soup, seasonings and gourds made of chicken material, simmer for 5 minutes, then remove and put the shark fin in the spoon to boil, thicken, put it on the plate, and put the gourd around.

The black insects on leeks are eliminated: mosquito coils, wind oil essence, mothballs (sanitary balls), dish soap, plants and so on.

1. Mosquito coil insect control method: light the mosquito coil, put it on the flower pot under the pest flower plant, and then use a plastic film bag, together with the flower pot for about 1 hour to kill aphids, red spiders, whiteflies, etc.

2. Wind oil essence insecticidal method: spray with 400 times to 500 times of wind oil essence, which has a fumigation effect, penetrates into the insect body, and kills the pest, especially for waxy scale insects.

3. Mothballs (sanitary balls) insecticidal method: grind mothballs and sprinkle them into the potting soil to kill the pests that harm the root system in the soil. It has a special effect on peonies, dahlias, lilies, lycoris and other tubers, bulbs and fleshy root flower root nematodes.

4. Detergent insecticidal method: spray with 500 times of detergent, which can kill pests within 24 hours, and then spray clean water, which can reduce the detergent.

5. Plant insect method: planting onions, garlic, leeks, etc. in the potting soil of flower plants releases volatile substances, which not only has the effect of repelling and killing aphids, but also has the effect of curing diseases.

Leeks have small black worms and don't have to worry too much, if it is a leafminer fly, you can spray fly amine or deltamethrin for control. If it is a thrip, it can be sprayed with phosphine emulsifiable concentrate, acetamiprid or deltamethrin pesticides for control. However, when there are small black worms, this also means that the leeks are relatively healthy, because it does not have any hormones and drugs, otherwise there are very few small black worms.

The black bugs on the leeks are likely to be leeks or black caterpillars, and the healthiest way is to use manual capture to kill, pinch the bugs off with small tweezers, and then trample them to death. 2/2

Or use vinegar and water to spray leeks to kill these insects. The best effect is to kill the drug, but it takes two days to eat after spraying, and you need to soak it in water for two or three hours before eating.

The control of leek pesticides is currently used more methods, and pesticides are added to irrigate or spray when watering, which can control leek maggots. Pesticides should be selected with low residue and good effect, such as organophosphorus or neonicotinoid insecticides in the high incidence period of leek maggot adults, and sprayed with water at the base of leek stems, so as to control underground pests. Some pesticides with high toxicity and large residues should be prohibited.

Organophosphorus or neonicotinoid insecticides are sprayed at the base of leek stems with water to control underground pests. Some pesticides with high toxicity and large residues should be prohibited.

When using medicine, you must choose some suitable pesticides, and you should not choose drugs that are too strong. It is also not possible to choose some drugs that treat the symptoms but not the root cause. Regular medication should also be selected according to the specific situation of the disease. Care should also be taken to frequently observe the reaction to medication.

What are the management methods for summer leeks?

1. Don't harvest.

Due to the low nutrient and large consumption of temperature regulation in summer, the growth of plants is affected, and the leaf tissue fibers increase, the texture is rough, and the growth is weakened and the phenomenon of dormancy. At this time, the harvest is generally no longer harvested. Otherwise, it will affect the growth and yield in autumn, and will also affect the life of leeks.

Plant cultivation should be strengthened, roots should be raised, and the foundation should be laid for autumn production.

2. Fertilizer and water management.

In summer, leek fertilizer and water management must be divided into varieties, such as "stupid" leeks, because green leeks are not easy to sell, generally sell leeks, watering and fertilizing should be early, to sufficient, to provide good conditions for sprouts. Hanzhong, snow leeks and other varieties are late, generally low, can be properly controlled water, so that neither waste fertilizer and water, but also do not affect the accumulation of nutrients, and lay a good foundation for selling green leeks in winter. In order to prevent uneven fertilizer flushing with water, water-soluble fertilizer of Trim granules can be sprinkled.

But be sure to apply it when there is no dew, you can use a broom to sweep it a few times so that the fertilizer on the leaves falls to the ground, and then water.

3. Weeding management.

High temperature and rain in summer, which is conducive to the breeding of weeds and affects the growth of leeks, after each harvest and land preparation, weeds are eliminated in time, and then sprayed with 25% herbicidal ether on the ground between rows. Flower picking: Due to the flowering and setting of leeks, a large amount of nutrients are consumed, which affects plant growth, tillering and nutrient accumulation, thus affecting the yield of the next year.

Therefore, in addition to harvesting and planting, the flower sprouts should be removed in time when they are young and tender, so as to facilitate plant cultivation. Strengthen fertilizer and water management: according to seedling conditions, moisture conditions and weather conditions, water once every 7 10 days, and apply human manure and urea fertilizer 3 4 times with water.

4. Anti-lodging.

In summer, the weather is hot and rainy, and the leeks that are more than two years old are not cut in summer, and the tall leaves are easy to lodging, which seriously affects the ventilation and light transmission, and is prone to disease. In order to prevent the lodging of leeks and reduce diseases, a frame should be set up for leeks, that is, a wooden pole with a height of 30 cm is fixed along the ridge at both ends of the leek, and then a bamboo pole with a length of 2 meters is tied to the wooden basket, three thin steel wires are arranged on both sides and in the middle of the furrow in the east-west direction, and then nylon ropes are set up in the middle of the wire according to the spacing of 25-33 cm, which plays a fixed role. Then, between each ridge of leeks, the thin bamboo poles are set up on nylon ropes in the north-south direction, and the leaves can grow on the bamboo poles without lodging.

5. Leeks are harvested in a timely manner.

After the leeks are extracted, in addition to leaving the field for planting, they should be harvested in time to reduce the consumption of nutrients, which is conducive to fattening the rhizomes and increasing the winter yield of leeks.

6. Timely prevention and control of pests and diseases.

In the case of high temperature in summer, leeks are prone to wilt disease, especially when exposed to the scorching sun after heavy rain, the disease is serious. Therefore, in summer, it is necessary to pay attention to the removal of old and yellow leaves, and on the premise of maintaining good ventilation between the rows, 50% carbendazim 500 times and other agents can be sprayed every 10-15 days to reduce the occurrence of diseases. In addition, it is necessary to prevent and control leeks and maggots in a timely manner, which can be controlled by using 48% maggot and 48% Lesben emulsifiable concentrate.

At the end of summer, spray the foliage, dung heap, thatched pit, and ground with 3,000 times the liquid of pyrethroid to eliminate pests.

First of all, when planting, we must choose the soil is more fertile and wide land, and use farmhouse fertilizer, do not use fertilizer bought outside, water the plants more, but also to prevent the occurrence of pests and diseases, if there is a situation of small insects, then we must spray insecticides in time. And the temperature should also be properly regulated. If the leeks are ripe, be sure to pull them out immediately.

The most effective way is to spray pesticides that can prevent pests and diseases, and then water and fertilize more to supplement the nutrients needed by leeks. It is also necessary to clean up some dead branches and leaves, and do a good job of drainage.

Water and fertilization should be done in a timely manner, and water and fertilizer management should be strengthened, and pesticides should be sprayed regularly, and soil loosening should also be done, and sufficient light and suitable environment should be ensured, and soil permeability should also be ensured.

In the summer, the leeks should be watered every day, and pesticides should also be sprayed on the roots of the leeks, so that the leeks will grow well and the yield will be high.