How do you grow sweet potatoes without insect eyes? How to grow sweet potatoes so that there will be

In rural areas, sweet potatoes are generally put in the morning when cooking or steaming rice on the stove, and compared with sweet sweet potatoes, I prefer Jiangxi's local starchy white potatoes, which are glutinous and delicious, and can also be made into potato flour and vermicelli. Eating sweet potatoes will pick a moderate and good-looking head, and the most afraid of insect eyes is not only not good-looking, but even more uncomfortable if you eat it. So, how do you grow sweet potatoes without insect eyes?

If you want sweet potatoes to grow well without insect eyes, the key is to prevent underground pests, but sweet potatoes grow underground, and they are susceptible to underground pests, common underground pests are needleworms, grubs, mole crickets, ground tigers, etc., the insect eyes caused by grubs are relatively large, and the insect eyes caused by needleworms are like the size of soybeans, and its activity ability is strong, and the damage period is long, and it is not easy to control it. At present, large-scale planting to control underground pests is mainly based on chemical agents, and traditional methods are mostly used for planting and self-retention in small areas.

First of all, chemical agents are used for prevention and control. In the sweet potato planting and regreening stage, mixing sand with phosphine or imidacloprid or fried millet is applied in the ditch and covered with soil to prevent underground pests, which is the best preventive measure. In the period of sweet potato swelling, it is also a critical period to prevent underground pests, and when there are more underground pests, chlorpyrifos or imidacloprid are used to irrigate the roots; If there are more adults such as beetles in the field, foliar sprays such as phosphine, thiamethoxam, and imidacloprid can be used to prevent and control them.

Poison bait trapping, mix 90% crystal trichlorfon 200 times liquid with grass or fried wheat bran, sprinkle on the edge of the field in the evening, can trap mole crickets, ground tigers, etc.

Second, the traditional approach. Sprinkle some lime on the ridges of sweet potatoes or sprinkle a certain amount of tea seed cake in the planting furrow when planting, which can also prevent the occurrence of insect pests. In the sweet potato expansion stage, the root of the leaching liquid mixed with superphosphate and plant ash is applied to the root of the sweet potato, which can promote the growth of sweet potato and prevent underground pests.

Third, agricultural measures. Before planting sweet potatoes, the residues of the previous crop and weeds in the field should be cleaned up to reduce the egg laying of pests; When the base fertilizer is applied to the farmyard fertilizer, the farmyard fertilizer should be fully decomposed, otherwise the eggs and bacteria in the farmyard fertilizer will spread in the soil, which will further aggravate the occurrence of underground insect pests.

Fourth, biological and physical measures. Biological pesticides such as Beauveria bassiana, azadirachtin and rotenone can be used, which are easy to decompose without residue, and the disadvantage is that the effect is slow when used for prevention and control, and it is suitable for prevention; According to the ground, tigers and beetles have the characteristics of black lights, and black lights can be set in the ground to trap adults.

Considering that there are many kinds of underground pests, the occurrence time is different and other factors, it is difficult to prevent and control, and it may have little effect by relying on one method, so it is recommended to take comprehensive measures to prevent and control, and try to choose pollution-free or high-efficiency and low-toxicity pesticides for prevention and control, which will not pollute sweet potatoes and taste very healthy.

Everyone eats sweet potatoes a lot, but how many people know how sweet potatoes are grown.

The insect eyes of sweet potatoes are bitten by underground pests, and when the sweet potatoes swell and clump into the sky, it is when underground pests are rampant, and underground pests feed 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 tubers, causing the sweet potato to have a residual eye.

It's best to plant sweet potatoes separately from other crops to prevent soil-borne diseases. Once a plant is found to be sick, it should be sprayed evenly on the leaves of the plant with plant-specific insecticides.

First, first of all, it is necessary to prevent it from the source, and many friends who use farmhouse fertilizer in rural areas must be well rotted when choosing farmhouse fertilizer. Otherwise, there will be eggs inside. If it is not rotten, cover it with a film and fully ferment it at high temperature.

And kill the eggs. So as to prevent and control at the source. Do the first step.

Second, the choice of land for sweet potato planting must choose a good rotation land, which can also reduce the underground pest of sweet potato. There are also underground pests of sweet potatoes, mole crickets, ground tigers, grubs and so on. If you grow sweet potatoes in succession, or if you grow vegetables all the time, it is easy to grow sweet potatoes on land that has not undergone crop rotation, and there are underground insect infestations.

Produces insect eyes. Affects the quality of sweet potatoes.

Third, sweet potatoes to prevent insect pests, when fertilizing, use some tea wither, and break the tea wither. Then sprinkle some tea withering in the fertilizer ditch. This is also a good way to prevent insect infestations. It can also improve quality.

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.

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.

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.

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 will also bring this kind of pests to the soil.

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.