What are the causes of kidney bean malformations? What pesticides can be used to prevent it?

When kidney beans are grown, some drugs need to be sprayed to promote or prevent pests and diseases, but kidney beans are sensitive to manganese-zinc, lead, ethylmold, etc., and excessive use of this drug can cause pods to bend. Kidney beans are also very sensitive to viral vaccines, easy to protect, forming deformed fruits, which may be weakened by sprinkling copper or anthrax, and can be completely deformed at least and down at worst. Boron is an important substance that affects the pod rate and yield of kidney beans, in the pod stage of flowering, the pod is insufficient, the pod opening rate is low, and even if the pod is opened, the pod length is easy to bend, and the commerciality is low.

The best way is to apply a small amount of boron fertilizer at the same time as the basal fertilizer, or spray the borax solution 1-2 times before kidney bean flowers to quickly replenish the boron of the plant.

During the growing season, the temperature is too high or too low to cause the pod to bend and deform, the kidney bean is best 23 to 25 degrees during the day, the accumulated temperature for growing at night is 18 degrees, and the firearm temperature is 23 degrees. When the temperature is below 20 degrees or below 30 degrees during the day, the pod rate of flowering is low. During the flowering period, you must pay attention to the temperature, if the temperature is too high, you should ventilate it in time, reduce the temperature, if the temperature is too high, close the shed room in time, and increase the room temperature.

Planting with too dry soil or too much water can lead to deformity of the pods that have just set their pods, because when the soil is too dry or too wet will affect the growth of the roots, which will be vulnerable to plant growth and affect the flowering pods.

Because the pods of the plant are not deformed, in order for the roots of the plant to grow strong, watering is generally decided according to the moisture of the soil. Generally, do not water before flowering, sit in the pod to water and fertilize, and sprinkle a little water when watering, not full of water, so as not to rot the roots. If the soil in the greenhouse is too dry or there is too much water, the pods that have just sat on can easily bend.

This is because the soil is too dry or too wet, and the roots are injured, affecting the weakened, flowering pods of the plant. Watering should be decided according to soil moisture to avoid flooding and damaging roots. Do not spray too much inhibitor on the kidney beans in the pods, which are prone to bending.

Some vegetable farmers spray acetic acid to prevent pods in too high concentrations, causing the pods to bend. When spraying growth inhibitors, they must be formulated according to the guidelines for use and should not be excessive.

It is boron deficiency. Kidney beans are not easy to sit on pods, even if the pods are sitting, but the flowers are large and the pods are long, the pods are curved, and the commerciality is poor. The solution is to spray 1200 times Solubor or Liquid Boron before kidney bean flower.

There are two main reasons for the deformity of kidney beans: high concentration of soil solution and boron deficiency. Kidney beans are boron deficient and not easy to sit on pods, and the increase in soil solution concentration will cause pods to bend and cause kidney beans to be deformed.

Pesticides that can be used include promethine, chlorothalonil, chlorothalonil, nongriling, bacode, carbendazim, etc.

It is sprayed with a drug that is sensitive to kidney beans. Kidney beans are sensitive to drugs containing mancozeb, zeczeb or ethylcarb, which can easily bend the pods if applied in excess. Kidney beans are very sensitive to alum, and are prone to drug damage, resulting in pod deformity.

There are also kidney beans that have been damaged by spraying copper preparations or anthrax Fumei, with the light pods bent and the heavy ones falling leaves and pods.

Blight, anthrax, gray mold, etc., these bacteria can directly affect the growth of kidney beans, and they are all common diseases, which will affect the leaves of the beans to appear some spots.

Bacterial disease, also known as fire disease, is severe during periods of high temperature and rain. Kidney bean anthracnose is more serious in the rainy season, and sclerotinia mainly affects stems, leaves, pods, and branches.

Kidney bean root rot mainly harms the roots and rhizomes, the plant is dwarf, the lower leaves are yellow, the leaf edges are wilted, but they do not fall off, and the plants are easy to uproot. The rhizome turns brown or black, the diseased part is slightly concave, the vascular bundle is reddish-brown, after the main root of the plant is infected, the above-ground stems and leaves wilt and die, and when wet, the diseased part produces pink mold.

1. Kidney bean anthracnose is more serious in the rainy season, which not only affects the yield, but also reduces the commercial value of kidney beans. Brown round lesions appear at the onset of the leaves, cracking or perforating in severe cases, and finally the leaves die; The pods appear small brown spots at the onset of the disease, which gradually spread into round lesions, and when the humidity is high, they also overflow with pink sticky. Prevention and control methods:

Reasonable crop rotation, selection of varieties with strong disease resistance, selection of disease-free planting and sowing, carbendazim seed dressing can be disinfected before sowing. At the onset of the disease, methyl tobuzin and anthrax fome can be sprayed for prevention.

Sclerotinia sclerotiorum. In a humid environment, the stems are densely covered with white cotton flocculent mycelium and form black sclerotia. Prevention and control:

Reasonable fertilization and irrigation, spraying, the agent has Tobuzin wettable powder, about every 7-10 days to spray once, a total of 2-3 times. Phaseolus mosaic disease, lack of green or wrinkled, its green part protrudes or is concave and bag-shaped, prevention and control; Breeding disease-resistant varieties. Disease-free plants are retained.

Timely control of aphids.

Kidney beans are harmed by Sclerotinia sclerotinia sclerotiorum. This disease is mainly manifested in the rhizomes or vines near the ground soaked in water, which will turn gray-white after a long time, and then there will be white flocculent and black bacteria on the neck. In the case of this disease, we should rotate crops reasonably, do not plant in a field repeatedly, and water and fertilize reasonably.

It can also be sprayed with fungicidal pesticides to alleviate the disease.

Kidney beans are susceptible to the threat of sclerotinia sclerotinia disease, bacterial blight disease, and anthrax disease. The prevention and control of kidney bean disease should pay attention to fertilization or furrow application of bacterial fertilizer, which can effectively inhibit the disease, and can also promote the ability to generate new roots.

Kidney beans are affected by anthrax. This disease is mainly manifested as the phenomenon of black spots on the leaves, the leaves gradually shrank and die, if the pods are diseased, black spots may appear on the pods, and the pods are not full. In the face of this disease, we should also rotate crops reasonably, choose disease-resistant varieties, and soak and disinfect the seeds.

The kidney bean seedlings all withered, what disease did they have, and how**.

Hello, I'm glad to answer for you, there are many possible reasons why all kidney bean seedlings wilt, such as diseases, insect pests, climate factors, etc. According to your description, it may be due to a disease. Common diseases include root rot, blight, powdery mildew, etc.

For different diseases, the method will be slightly different. Here are some common prevention methods: 1

Root rot: When kidney beans are attacked by root rot, their roots will be browned, softened, and have a musty smell. To combat the disease, biologics containing Propyclix can be used.

In addition, it is also important to control the amount of irrigation and ensure that the soil is well drained. 2.Blight:

Blight is a fungal attack that causes the leaves to gradually turn yellow and eventually the plant to die. To control the disease, fungicides containing carbendazim can be used to spray the plants. 3.

Powdery mildew: Powdery mildew is a disease caused by downy mildew that causes a white powder on kidney bean leaves, affecting photosynthesis. In order to prevent and control the disease, spraying can be carried out with agents containing benzoic acid.

In conclusion, maintaining a good irrigation and ventilation environment, regular weeding and disinfection, and the use of appropriate rough roll fungicides or biological agents are all common methods to control kidney bean disease. If the specific type of disease cannot be determined, it is advisable to consult a local plant expert or agricultural technician. The above is my reply, I hope it can help you!

A variety of vitamins, trace elements, proteins, dietary fiber, carbohydrates, fats, etc. According to a test, it is the same as the metabolism of the root of the root of the rue with the skin. As I grew taller, I didn't fit in the clothes and shoes I worn.

As long as you are in good health. All life is only once, and only the next year starts anew. All things grow, facing the sun.

The nourishment is up, too.

<> beans contain as much as 349 mg of calcium per 100 grams, nearly twice the calcium content of soybeans. There are many reasons for the yellowing of the lower leaves of kidney beans planted in the greenhouse, mainly to see whether there is a disease or lack of nutrients, the disease generally does not occur in pieces, and there will be spots or mildew or perforations Cloud beans do not like big water in winter, the moisture in the shed is too bad to be too large, especially during the picking period, cloud beans do not like to be too dense, fifty centimeters a pair mainly to see if there is a disease or lack of nutrients, diseases generally do not occur in pieces, and there will be spots or mildew or perforations, etc., the deficiency of nutrients is generally magnesium deficiency, but in reality, kidney beans are less deficient in magnesium. It's more about natural aging.

Since it is not possible to observe at the scene, it can only be speculated. The most reasonable, once on the gray berry is difficult to obvious symptoms, its main symptom is that the leaves of the plant turn yellow from the bottom to the top, the leaf veins become exhausted and easy to fall leaves, in the middle and late stages of growth, the stem becomes brown on one side, and all the heavy becomes brown, the plant roots are small and easy to pull out, the roots change color and rot, get sick, there are yellow leaves below or at the top of the full fruit period, which is normal, you can remove the yellow leaves, you can see the sunlight to promote the branches and other greenhouse planting kidney beans The lower leaves turn yellow for many reasons, It mainly depends on whether there is a disease or lack of nutrients, the disease generally does not occur in pieces, and there will be spots or mildew or perforations, etc., lack of double undecidine so it is generally a magnesium deficiency, but in reality, the phenomenon of magnesium deficiency in kidney beans is relatively rare. , nutrient deficiency is generally magnesium deficiency, but in reality, kidney beans are less deficient.

It will grow slowly and the branches and leaves will also turn yellow, and in the process will grow slowly, in this case, it should be watered and fertilized in time, so as to be able to solve such diseases well, and must be vigilant.

Kidney bean root diseases mainly include wilt, stem base rot, streptospore root rot and physiological diseases, root rooting, salted roots, a variety of pathogens, root rot caused by nematodes, etc. The prevention and control measures are:1

After planting, pay attention to ground moisture preservation to ensure the emergence rate; 2.Do not let the ground surface dry after emergence, and spray foliar fertilizer appropriately; 3.Reasonable dense planting.

When setting seedlings, use micro fertilizer and carbendazim to purify the pit; 4.Strengthen developmental management. Irrigate the roots with pesticides once every six months to control the occurrence of diseases, and disinfect the soil with quicklime.

Kidney bean red root disease is mainly root rot and anthracnose, and the severe ones die. Prevention and control methods, when planting, you can use 50 carbendazim + 50 Fumei double, each 1,000 plants are used for each catty, add 10 catties of fine dry soil, mix well, and sprinkle in the hole. Then plant it, and the control effect is good.

If dead trees are found during the growth period, you can use 50 carbendazim + 50 Fumeishuang 500 times solution to irrigate the roots, and each plant can be irrigated with 150 250 grams of medicinal solution, once you can.

The main causes of kidney bean root rot are wilt, stem base rot, streptospore root rot and physiological diseases, root soaking, salinization of damaged roots, a variety of pathogens, root rot caused by nematodes and other reasons.

One. The main disease.

1.Blight.

The disease is mild in the early growth stage, and the main symptoms are that the leaves of the plant turn yellow from bottom to top, the leaf veins turn brown, and the defoliation phenomenon is easy to occur. In the middle and late stages of growth, the vascular bundle on one side of the stem turns brown, and the whole plant turns brown, and the number of roots is small, easy to pull out, and the roots change color and rot. The disease occurs severely in sheds with high humidity and continuous planting.

2.Stem base rot.

The disease mostly occurs from the base of the stem, and in the early stage of the disease, there are sunken white-red-brown canker lesions, and when the fungus expands to the tissues in the stem, the tissues in the stem become red bricks. The prevention and control of the disease should be combined with physical prevention and control with Xunxun chemical prevention and control.

3.Streptospore root rot.

At the beginning of the disease, the diseased part is water-stained reddish-brown spots, and then becomes dark brown or black-brown lesions, slightly depressed or cracked, and then gradually expands, resulting in the decay or necrosis of the taproot, when pulling out, the longitudinal dissection of the diseased root, the vascular bundle is reddish-brown, and when the humidity is high, the base of the stem is pink mold.

4.Physiological diseases.

Kidney beans are drought tolerant but not waterlogging, like the soil is fertile, loose, good air permeability rhizosphere environmental conditions, if the soil is heavy, poor air permeability, field water and other environmental conditions, are easy to cause leaf yellowing, falling off, serious occurrence of dead trees. Excessive use of chemical fertilizers can also cause high soil salt ion concentration, which is easy to cause root rot and dead trees.

Two. In view of the above diseases, we can start from two aspects: physical control and chemical control

1.Physical control.

On the basis of leveling the ground, ridge cultivation is carried out to prevent water accumulation in the field and cause root problems. At the same time, it enhances soil permeability, which is conducive to root growth, reduces the probability of disease infection, and improves the stress resistance of roots. Water frequently with small water, do not top dressing before podding, and it is recommended to apply high potassium fruit-promoting fertilizer after podding; For example, Green Pioneer 503 can properly control the vegetative growth and improve the effective yield of kidney beans, while the beneficial bacteria and rare earth elements in Green Pioneer 503 can promote the healthy growth of the root system.

2.Chemical control.

1) On the basis of physical control, chemical control is adopted, and Fusarium wilt can be controlled by 30% fenthalin and copper ammonia; Stem base rot can be controlled by doubling and methyl phosphorus; Streptospore root rot can be controlled by antibacterial spring volin or Garinone. Due to the strong nitrogen fixation ability of kidney bean, the base fertilizer should be mainly biological fertilizer, organic fertilizer and compound fertilizer with low nitrogen fertilizer content. It is designed to strengthen the root system and improve the disease resistance of kidney beans.

2) After the emergence of kidney beans (live broadcasting, transplanting) irrigate the roots with 25ml of gram powder cream + 15 kg of Bihuke with water, and irrigate again after 7-10 days, basically there will be no more disease in this life, and at the same time, the nematodes in the rhizosphere of kidney beans can be killed, avoiding the harm of nematodes, and eliminating the occurrence of kidney bean red root disease.