What is the reason for the black spots on the beans

The cause of black spots on beans is: anthracnose of beans. This disease mostly occurs in humid and rainy areas, and can harm the leaves, stems, pods, and seeds of beans at the same time, mainly manifested as a large number of round or oblong black spots or reddish-brown spots, the size can reach 1 cm, and the moisture often overflows pink sticky.

It is best not to eat this kind of black horn with black spots, because there are many toxins left on it, which are harmful to people's health.

1. Harm: Anthrax can damage leaves, stems, pods and seeds. The veins of the diseased leaves have reddish-brown streaked spots, which turn into black reticular spots in the later stage.

The stems and petioles are infected with brown sunken cracked spots, which later turn into black-brown long spots. Pod infection has black, round, pitted spots with a pink substance when wet. Infected seeds have yellowish-brown or brown pitted spots.

2. Measures: 1. In the early stage of the disease, fungicides such as chlorothalonil, mancozeb, formadi, prochloraz and other fungicides can be sprayed, and sprayed once every 5 days, and sprayed 2-3 times in a row. When planting, farmers should choose disease-resistant varieties as much as possible, and at the same time, they can carry out crop rotation and deep ploughing of the soil, especially after rain, pay attention to timely drainage and reduce soil moisture content.

2. Select disease-resistant varieties; Disinfect the seeds, mix the seeds with 50 carbendazim wettable powder with a seed weight of 0 4, or soak the seeds in 60 times 600 times of anti-mold powder for 30 minutes; Spray 800 times of chlorothalonil wettable powder, or spray 800 times of 50 methyl tobuzin.

3. Nutritional value:

1. Beans contain a large amount of high-quality protein, carbohydrate trace elements and other nutrients, which have the effect of increasing human body functions, replenishing energy and improving immunity.

2. Beans are rich in vitamins, especially vitamin B, which can enhance gastrointestinal peristalsis and play a role in aiding digestion.

3. Beans contain vitamins, proteins, trace elements and other substances, which can inhibit cholinease activity and also have a certain protective effect on the gallbladder.

4. Beans are also rich in vitamin C, which plays an antioxidant role, increases the body's ability to resist viruses, and also has an anti-aging effect.

5. Beans also contain a variety of amino acids, which not only enhance immunity, but also have the effect of strengthening the spleen and inhibiting tumors.

Hello, friend.

You can't eat it, and if you eat it, you won't die, but it's better not to do it to your body.

Is that. Put it in a damp place and get moldy!

It's going to spoil. It may cause stomach pain and so on.

Then don't eat it, it's bad.

Cowpea anthracnose is prevented and treated with difenoconazole, prochlorazaz manganese salt, Pythium, flusilazole, pyroxystrobin, benzobromonitrile, pyrazoxystrobin and other agents alternately used for spray prevention and control. Leaf shrinkage caused by ladybug damage can be controlled with bifenthrin plus acetamiprid, or cyhalothrin plus pyridafen, and cypermethrin plus imidacloprid plus pyridafen in the early stage.

The beans have dark spots.

It is infected with the bacterium that copied the black spot. Beans with black spots are not to be eaten.

Beans are easily infected with black spot bacteria, which manifest as beans.

The horn bark of DAO has brown and black-brown spots. Spots contain toxins such as ketones and ketone alcohols, which can damage the liver, and cannot be killed by boiling, steaming or roasting, and are harmful to the liver after being ingested.

Depending on what kind of spot it is, it should be edible.

Hello, can't eat it has gone bad. Spoiled beans contain toxic substances, which is not good for your health if eaten. Hope it helps, thanks for adopting.

It is very common to grow beans in rural vegetable gardens. If you go to the countryside, you will see that many people always plant a variety of vegetable stoves and friendly vegetables in the yard or in front of the house, including beans, but in the process of planting beans, you will encounter a lot of troubles, one of which is the harassment of pests.

What are the pests of beans? Here we put aside underground pests, and talk about the pests that harm carob flowers, leaves, and pods from the time of emergence to harvest.

The first pest is the common aphid, the color of the aphid is green and black, so the black insect you are talking about may be an aphid. Aphids damage the leaves and young stems of carob, especially in the high temperature and dry season, the breeding speed is fast, the harm is serious, and the back of the leaves will appear in large quantities within a few days, resulting in a decrease in leaf chlorophyll, affecting the photosynthesis of carob. If it is really an aphid, you can choose the biological agents resveratrol, matrine, rotenone, etc., or you can choose low-toxicity pesticides thiamethoxiprid, imidacloprid, acetamiprid, endimidamin, spiromethane, etc.

The second is thrips. Carob thrips can be said to be a common but very harmful pest, will appear all year round, due to the small individual, good at jumping and leaping, generally hiding in the flowers of carob, when preventing, it is difficult to hide in the flowers of carob thrips all killed. Thrips damage carob plants, there will be flower dropping, leaf shrinkage, buds stop growing, after pods are harmed by thrips, there will be curl, rust color produced.

Therefore, the control of carob thrips is very important in planting.

We should take advantage of the habit of thrips being afraid of light and being nocturnal, and we should also carry out targeted prevention and control according to the characteristics of pollination of beans. There are the most thrips in the carob flowers, but the carob flowers will close at about 25 degrees, so choose to use medicine in the morning and evening, and then hit the ground and then hit the leaves and flowers when spraying, and you can choose to use thiamethoxiprid, ethyl spinosad, averidamidine, difenmethrin acetamiprid and other drugs. At the same time, a blue plate is inserted in the ground to expand the control effect.

There are only two small black bugs that generally appear on the beans, I don't know if it's what you photographed? Thrips are small, and they are not easy to find without careful inspection by the naked eye, and aphids are more common in cryptoacacia, so you had better send ** to me for an accurate diagnosis.

Long beans are also a relatively common vegetable in daily life, and there are various types of long beans, such as green beans, beans, etc. However, in the whole process of making long beans, it is necessary to cook them thoroughly until they are cooked, otherwise it is very easy to cause the adverse effects of food poisoning. Some people find that the surface of the beans has gray-black black spots before eating the long beans, will it cause the adverse effects of food poisoning if they eat it again at this moment?

Long beans are not easy to be unfamiliar, in the usual daily life everyone is to eat long beans, in the usual diet we can eat a variety of ingredients, and long beans is a good choice among them, it is beneficial to our physical and mental health, and can also make the ingredients cooked with color, flavor and flavor, so if we find that the long beans are spotted, can we eat again, let's take a look.

For long beans, under normal circumstances, if the long beans appear spotted, then we do not strongly recommend everyone to eat again, but if it is just bought back fresh long beans with spots on the top can be taken it, this is due to the chemical effect of the long beans being crawled over the surface by small insects in the case of growth and development, the lining is not affected, and it shows that too much fertilizer is not sprayed, so the long beans at this moment are we can eat with peace of mind. However, if we find that we have bought it home and left it for a period of time, it may have already become more moldy, so it is generally recommended not to take it, in case of stomach discomfort, and the long beans should not be eaten at the moment.

In addition, for long beans, if you take them off after storing them in the refrigerator for a few days, and find that there is a situation of long beans, then you can't eat them all at this moment, and the nutrients flow out more, and there are already a lot of germs and harmful substances growing in it, which is very easy to cause gastrointestinal discomfort. Harm to physical and mental health, there is no benefit to our physical and mental health, so it is a condition that everyone should pay attention to when eating long beans, and if there are bright red rust stains on the pods of long beans, it is called: carob anthracnose.

This disease causes fusiform or long strip-shaped lesions on the stem, starting with dark purple and dents, and in severe cases, it hurts the pods and produces light brown lesions, which are candida pests and diseases. This disease is a serious illness under the standard of more dew and more humidity. It should be edible when made into dishes made at high temperature, and it is not easy to cause damage to the human body, but it is not necessary to eat it well, so it is best not to eat it if the beans are spotted.

Eating long beans is good for our physical and mental health, often eating long beans is beneficial to our physical and mental health, and we can also very good supplement nutrients when we eat long beans, which is more meaningful for gastrointestinal health, but if we find that long beans have spots, then we should not eat long beans again at this moment, it is something we should be careful about.

The blackening of the surface of the beans means that they have deteriorated, and it is best not to eat them for the sake of food safety.

That's a lesion on top of a plant. It's like a person getting sick. There is no harm to people, but it is very harmful to beans. The beans will spread to each other, and they will become more and more powerful.