How do you grow sweet potatoes without insect eyes?

You can put some pesticides in the land, so that the insects will not dare to eat them, which is very good and makes the sweet potatoes grow better.

The first step is to select excellent sweet potato seedlings without insect eyes for planting, and the survival rate is generally higher in April and May. You can also buy freshly ripe sweet potatoes, cut them in half and plant them in sandy soil, and new seedlings will grow in 15 to 30 days. The second step is to choose the right soil for planting. Sweet potatoes have strong adaptability and do not have high requirements for soil, but loose, breathable, and well-drained soil are more suitable for the growth of sweet potatoes.

The third step is correct day-to-day management. When sweet potato seedlings are planted in the soil, they need to be given enough light, watered about 5 days, and fertilized every 3 weeks to help the sweet potatoes grow better.

First of all, we should choose high-quality varieties for planting, then fertilize the sweet potatoes, and replenish water, as well as the later drainage work, which are very important.

I think it's very important that you pay attention to the use of fertilizers, and you should water more often, and you should be aware of the effects of pests and diseases, and you should always prune the wilted branches and leaves.

Before planting, the land is disinfected and insecticidal, and after planting, chlorpyrifos or phosphine can be sprayed on the wheat horns before ploughing. At the seedling stage of sweet potato, you can use phosphine or trichlorfon low power solution to irrigate the roots, which can well eliminate underground pests.

The reason why it is said that planting sweet potatoes in tobacco fields can make reasonable use of land resources and achieve the purpose of double yield increaseIn the process of its growth, a large amount of fertilizer is needed in the early stage, and once the fertilizer is too sufficient, the tobacco leaves are not only planted with sweet potatoes and less insect eyes, but also other crops are rarely insects and grow luxuriantly.

<> this question is raised, there is an aphid control method in the plant protection biological control technology: boil tobacco into water, spray vegetables and cotton after dilution, spray three times in two days, very good, so the sweet potatoes planted in the tobacco field have few insect hazards to strengthen field management, and plough the land after winter, so that the eggs leak out to achieve the killing effect! Use less unrotted organic fertilizer, which has eggs in the middle stage and set up a black light to trap adults.

Sweet potatoes have the cause of insect eyes. Many people hope that the sweet potatoes they grow do not have insect eyes, so that they can sell a good **. But it is often undesirable, and it is always inevitable to have insect eyes.

This is because there are a lot of pests in the land, such as ground tigers, needleworms, mole crickets, grubs, etc., you can go to the seed station to buy seedlings, you can also cultivate yourself, sweet potato seedlings are easy to survive, as long as they are buried in the soil, they can survive, the key is that sweet potatoes are delicious, and some underground pests also love to eat.

Sweet potato is a drought-tolerant crop, so don't water too much, as long as the sweet potato is watered during the critical period, which can also indirectly reduce the occurrence of underground pests, grubs are the natural enemies of sweet potatoes, ninety percent of the insect eyes are caused by grubs The insect eyes of sweet potatoes are bitten by underground pests, when the sweet potatoes swell and clump into the sky, it is the time when underground pests are rampant, and underground pests are feeding on the rhizomes of underground plants. If there are a large number of underground pests in the soil of the sweet potato ridge, they will eat the sweet potato tuber pests with different living habits, some prefer to live in mud with more water, but cannot survive in dry, wet, and loose soil. On the contrary, some pests like to move in wet, dry and loose soil, and once they fall into muddy soil, their lives are not guaranteed.

In the first half month of sweet potato planting, 50 to 75 kg of quicklime is used per mu of land to sprinkle on the surface of the soil of the planting site; Then immediately turn the deep layer to the 30 cm below the tillage layer, and then fill the deep ploughed soil with enough water to let the water fully penetrate into the quicklime tillage layer; The function and purpose of using quicklime to sprinkle deep irrigation water before sowing sweet potatoes is that quicklime will chemically decompose when exposed to water, and in the process of decomposition, quicklime will release a large amount of heat energy, which can scald and kill the eggs, adults, and conventional soil-borne pathogens of underground insect pests; In addition, the main component of quicklime is calcium oxide, which can be matured into calcium hydroxide when exposed to water, which is generally alkaline; It can also play a role in improving soil pH, enriching soil calcium content, and helping sweet potato quality and high yield.

After the sweet potato ridge is laid, before planting the sweet potato, boil the millet, cook and dry the ten catties of millet in boiling water, mix with phosphine, pinch a small pinch and sprinkle it in the pit when planting sweet potatoes, it will kill the eggs and larvae of the underground pests, the effect of the pesticide can last for two months, to the time when the underground pests are rampant in Futian, because the eggs and larvae are killed, there is no bane, there are no underground pests in the soil of the sweet potato ridge, and when the sweet potatoes are harvested, there will be no insect eyes.

Summary. Let the sweet potato leave insect eyes are underground pests, mainly grubs, mole crickets, needleworms, ground tigers, etc., these pests will eat when the sweet potato tuber is expanded, forming a wormhole in the tuber, the light will appear deformed, affecting the quality, and the heavy will cause bacterial infection, resulting in sweet potato rot and direct yield reduction.

What are some ways to avoid insect eyes when growing sweet potatoes?

Let the sweet potato leave insect eyes is to guess the underground pests, this loss mainly includes grubs, mole crickets, needleworms, ground tigers, etc., these pests will eat when the sweet potato tubers are expanded, forming wormholes in the tubers, and the light will appear deformed, affecting the quality, and the heavy ones will cause bacterial infection, resulting in sweet potato rot and direct yield reduction.

When the sweet potato potato tuber appears to be stuffy and the eggplant rises, it is the underground tuber expansion period, if the pesticide control is used during this period, it will bring the problem of pesticide residues, therefore, the sweet potato is not recommended to be controlled by drugs in the underground tuber expansion period. In Nong Na Nian Village, experienced farmers use traditional methods to prevent and control underground pests, which has good results.

After harvesting the kernels in the last season, clean up the weeds in the field, carry out the first deep ploughing, deep ploughing to reach more than 30 centimeters, and plough the eggs and larvae of underground pests and expose them to natural enemies such as birds. Wait until the land freezes, and then carry out a second deep ploughing, plough the pests that overwinter in the ground to the surface and let the frost and snow freeze to death, so as to achieve the purpose of insect extermination. The effect of deep ploughing not only eliminates pests, but also may loosen the soil, which is conducive to the growth of sweet potatoes.

Apply fully decomposed farmhouse fertilizer to control the source of insects to soak and plant sweet potatoes, most of which are mainly farmyard fertilizer. Although farmyard manure has many benefits, it will cause underground pests to breed if it is not fully decomposed when applied. Because the farmhouse manure has not undergone high-temperature fermentation, on the one hand, the eggs in the fertilizer have not been killed, and the application into the soil will lead to the overselling of pests and hunger, on the other hand, the farmyard manure that has not been applied to the soil will increase the ground temperature in the process of fermentation and return, providing a suitable living environment for underground pests, thereby attracting pests to lay eggs and reproduce.

I think you can use a solution made of potassium hydroxide mixed with superphosphate and spray it on the ground, and there will be absolutely no pests.

During the cultivation process, if it is found that the sweet potato has suffered from underground pests, it can be reduced by irrigating the roots to further aggravate the pest. Roots can be irrigated with superphosphate solution or plant ash leach, or tobacco leaves can be crushed in water, and the leaching solution after soaking for 24 hours, as well as Beauveria bassiana solution. These root irrigation methods will not cause pesticide residues, which is safe for the human body, and remains a safe and pollution-free way to control underground pests of sweet potatoes. ”

Roots can be irrigated with plant ash or calcium phosphate solution. Keep the roots in a safe state to prevent pests from eating the roots.

The soil can be disinfected and sterilized, which can solve the problem of underground cold waves, which can help sweet potatoes grow better.

Yes. The underground pests of sweet potatoes are root nematodes and grubs.

How sweet potatoes control underground pests.

1. Dip the roots to prevent insects.

First of all, let's talk about root pest control, this method is suitable for areas with low pest resistance, and the effect on underground pests in the early stage is more obvious, which can reduce the death of sweet potato seedlings caused by insect pests. Specific use method: you can use 25% thiamethoxam or 18% clothianidin suspension to prepare 500 times the solution (one catty of water with 1ml of medicine), and soak the sweet potato seedling roots in the solution for 5-10s before planting, and then transplant.

Sweet potato seedlings dipped in insecticides are almost impossible to eat by underground pests, so they are not easy to die, and the liquid on the plants can also eliminate some early pests in the soil. The limitation of this method is that the effective period is relatively short, and it is not recommended for areas with a high incidence of sweet potato underground pests such as grubs and mole crickets.

When dipping the roots, you can add Oxazalin to the liquid medicine to prevent root rot, and it is recommended to use 30% Oxazalin 750 times; Brassinolide can also be added, which can promote rooting, and the recommended use of brassinolide is 1000 times.

2. Sprinkle pesticides to prevent insects.

If you don't want to dip the roots, before planting, you can effectively prevent underground pests by spreading pesticides or using fertilizers in the soil, and the effect of this insect control method has also been proven!

Granules are recommended for sprinkling agents, and 1% biphenyls can be used. 3000-4000g mu of clothianidin granules, 15-20kg mu of thiamethoxam granules, 35kg mu of chlorpyrifos granules, etc., can be mixed with Ribery Yanwo granules water-soluble fertilizer when used, sprinkled in advance, and basically no insects are born in the later stage.

Farming really requires technology and skill, otherwise the production capacity will not meet expectations.

Planted every other year! Don't grow the same crop for several years in a row!

It's normal to have bugs, don't be overly entangled! The insects inside sweet potatoes are generally underground pests. It's a grub, or a needleworm, or a tiger. These insects are high in protein and do not have any adverse effects on the human body.

ground tiger, needleworm, root maggot, root aphid, etc.; The other is a fully decomposed organic fertilizer, mainly including mole crickets, grubs, etc. The eggs of this kind of pest will lurk in the organic manure, and friends who have lived in the countryside should know that a lot of grubs will crawl out after picking up the organic manure, especially the manure with high humidity. When farmers apply organic fertilizer to the ground, they bring this kind of pests to the soil at the same time.

In the middle, mole crickets, grubs, ground tigers, etc. all bite the rhizomes or seed blocks of sweet potato seedlings, causing the seedlings to wither and die or destroy the seeds.

Hello, I have seen your question, please wait a moment, I am sorting out the answer for you.

ground tiger, needleworm, root maggot, root aphid, etc.; The other is a fully decomposed organic fertilizer, mainly including mole crickets, grubs, etc. The eggs of this kind of pest will lurk in the organic manure, and friends who have lived in the countryside should know that a lot of grubs will crawl out after picking up the organic manure, especially the manure with high humidity. When farmers apply organic fertilizer to the ground, they bring this kind of pests to the soil at the same time.

In the middle, mole crickets, grubs, ground tigers, etc. all bite the rhizomes or seed blocks of sweet potato seedlings, causing the seedlings to wither and die or destroy the seeds.

How to prevent it. When it comes to harvesting, the sweet potatoes are bored inside.

The control methods of underground pests can be divided into two types: physical control and chemical control. Physical control is now in place, especially for pest-spreading pests. As we all know, the eggs of pests can only be safely wintered by hiding in the soil, so they only need to be deeply ploughed and turned deep after winter to destroy the hiding conditions of pests, and the eggs can be frozen to death.

That's why the colder the winter and the cooler the temperature, the fewer pests there will be in the spring of the following year. 1. The organic fertilizer is fully decomposed to eliminate pests. Farmers must be fully decomposed according to the requirements when decomposing organic manure, and only after high temperature treatment can the eggs and germs in the manure be killed together, so as to reduce the pests and diseases caused by organic fertilizer.

Organic fertilizer can also cause phenomenon such as seedling burning if it is not fully decomposed, which is not conducive to the growth of crops. 2. Chemical control methods Chemical control methods are mainly divided into soil disinfection, seed dressing, root irrigation and other methods. (1) Soil disinfection is mainly combined with deep soil turning, sprinkled with phosphine particles mixed evenly with the soil, and combined with pre-winter irrigation.

Or when applying organic fertilizer, it is mixed with phosphine and other agents for disinfection. (2) Root irrigation to kill insects. In the sweet potato root expansion stage, 30 times of superphosphate was used to dissolve with plant ash.

In addition, the method of foliar spraying can also be adopted, that is, the sweet potato leaves can be sprayed with 1000 times Lesben solution, so that the liquid medicine flows down the leaves to the rhizome, and it can be sprayed once every 10 days, and about 3 times in a row.

There are the above prevention methods.

You take a look.