Radish cabbage is harmed by cabbage worms, how to deal with it without pesticides?

With the rapid improvement of China's economic level, people's consumption concepts and diet concepts have also begun to undergo great changes. In the past, people worked hard to get enough to be fed, but now they are starting to strive to get well-fed and healthy green food products. This is because people are becoming more cautious because pesticides are used too much and pesticide residues in crops such as vegetables are too high.

Therefore, in rural or urban parts, in order to produce their own daily food, small vegetable gardens are cultivated. When planting vegetables, they don't want to use pesticides, they want to find green and safe methods to kill insects and sterilize. So today, when I am planting radish and cabbage, it is best to prevent Lu Chong.

No pesticides!

In order not to use pesticides and prevent insecticide, we should prevent it in advance, not when there are many insects**. This kind of soil method without pesticides is not very effective. The soil method is suitable for small areas of home planting, so before using the soil method, it is best to manually destroy the large bugs first, and then use the soil method to kill the small bugs.

Tobacco extract insecticide, this method has a good effect in the early stage of pest occurrence. Tobacco extract contains a lot of nicotine, and most of the pesticides we commonly use belong to the nicotine category, so spraying tobacco extract can really prevent bugs.

Use a mineral water bottle, put in 3 5 cigarettes, soak overnight, can prevent spray, good effect on early green worms, can ** mites, small mites, etc.! Spray once every 15 to 20 days during the growth period, and the insect repellent effect is good!

Use plants and trees to prevent insects. The principle is similar to the first. However, there are two uses of ultra wood deworming, the first is to spray on the soil surface before planting.

Don't sprinkle too shallowly. This usage prevents pests in the soil, including eggs. The second way to use it is to soak the grass wood in water overnight and spray it with a liquid soaked in grass wood the next day.

It contains alkaline substances, which can have an insecticidal effect, and it is very effective for early bugs!

Fight off bugs with biopesticides. There are biological pesticides that can eliminate green worms in agricultural production, among which the good effects are matrine, phosphoxin, cotton seed karyotype polyhedrovirus, and Gymena thuringiensis. Among them, matrine and phosphorus are extracted from plants.

These agents can indeed kill insects, the key is that there is no residue. But the problem is that the effect on insecticide is relatively slow, so it takes about 5 days to see the insecticide after injecting the drug. Biopesticides work better when used in advance!

Disinfecting and deworming the soil before planting, growing vegetables on our balcony, or growing vegetables in a small area at home, disinfecting the soil, can solve most of the pest problems in the later stage.

For example, particles such as mites, thiamine, thiamine and other particles can be sprayed on the soil, which can directly kill not only pests in the soil but also hatched bugs. Most importantly, it is effective against green worms, aphids, gophers, and mites! If you use the medicine once in this way, you will basically not regenerate insects in the later stage!

5) In the case of vegetables in rural households, you can put a trapping lamp in the vegetable garden, which is the most environmentally friendly and healthiest. The effect of larvae and other attractants is very good, and it has a good trapping effect on the adult insect of green worms, Noctuidae!

Manned lights are more common. We can buy one or two directly online and hang one or two in the vegetable garden, and there will basically not be many bugs in a season!

You can take out the plant ash for cooking from the stove, soak it for one day and one night according to the ratio of soaking each catty of plant ash in 5 catties of water, and then filter out the plant ash soaking liquid, which can prevent and control insect pests such as green worms and aphids; If you feel that this is troublesome, when the big green worm is a larvae, you can sprinkle the wood and grass ash evenly on the radish and cabbage leaves in the evening, and when the big green worm is active at night, you can kill it. Because in the evening, the leaves of vegetables are damp with dew, and the ashes of plants and trees are stained on the leaves of vegetables, and when the big green insects eat the vegetable leaves, they also eat the plant ash, so as to kill the big green insects and other insect pests.

Manually destroy the big bugs first. Then use the tobacco removal liquid to kill insects. Put 3 5 cigarettes in a mineral water bottle and soak it for a month to prevent early green worms.

Spray once every 10 or 20 days during the growth period, the best insect repellent effect, and use grass and trees to prevent insects. It is to soak the plants and trees in water overnight, and then spray them with the herbs and trees to soak the liquid medicine the next day, which contains alkaline substances. Works well against early bugs.

When radish and cabbage are harmed by cabbage insects, you can sprinkle plant ash next to the vegetables, but we sprinkle plant ash when the cabbage has just emerged, so that they will not be infested when they are older.

Pesticide prevention and control, can be sprayed with 1000 times of phosphine, 2000 times of dichlorbuthrin, 2000 times of cyhalothrin for prevention and control, spraying time to 9 11 o'clock in the morning, 3 5 o'clock in the afternoon is appropriate. Generally speaking, there will be fewer insect pests in the month before the radish harvest, and the insect pests are cabbage green insects: the larvae of cabbage butterflies, mainly the leaves.

The larvae of cabbage arterium have a small amount of food before the third instar and poor drug resistance, so the pesticide control should be controlled before the third instar. For the prevention and control of pesticides, 10% of the suspension agent is 1500 times the liquid, or Laixi suspension.

Garlic and silk nuts can be used to control cabbage worms. Take garlic, or loofah each a kilogram, then add an appropriate amount of water, mash it into a paste respectively, and then add 5 kg of water respectively, filter the residue, respectively, used to spray vegetables, so that you can prevent and control insects by hand is also a common method in the past, direct and effective, the key is that the work efficiency is low, if there are more vegetables planted, it is too slow. Then let's have a method of insect control, when there are cabbage green worms on the cabbage radish, catch a part.

When the cabbage moth turns from eggs to green insects, it is also the time when it eats away at the leaves of vegetables, and when it eats carefully when it is a child, it only eats the mesophyll part of the leaves, so we can always see that the leaves only have two skins, in fact, it is eating the mesophyll. Wait for it to be slightly longer and manually captured: cabbage insects generally appear in the morning or evening, and the elderly in our village will go to their own vegetable gardens at this time to manually capture them, catch the larvae or remove the eggs, which is more labor-intensive, and can only be practical in a small area, but effective.

1.Sprinkle plant ash. Grass ash is the rural people use firewood and grass to boil water for cooking, fully burned ashes, its main component is potassium carbonate, it can be sprinkled in the field can be made potassium fertilizer, can also be insecticidal and sterilized, it can be said that kill two birds with one stone, used to deal with cabbage insects The effect is also good, it should be noted that do not sprinkle grass ash in the weather before the wind and rain, so as not to be blown away by the wind and rain.

In addition to dry application, you can also sprinkle plant ash in clean water, stir well, let it stand for two hours, and then spray vegetable leaves with its leachate, the effect is also obvious. 2.Spray with a mixture of paprika and peppercorns.

It is best to use Chaotian pepper with a relatively large degree of spiciness, so that the mixture is numb and spicy, spray it on the radish and cabbage leaves, and you will no longer be afraid of cabbage worms. If possible, mash the garlic and add it to the mixture for better results

The same kind of killing, cabbage green worm treatment mixes the mashed green worm with detergent and sprays it with water. Specifically, we catch the green worms in the cabbage, soak them in water for a day, and wait until the green worms are rotten and deteriorated, with the spoilage liquid, water and washing clothes to spray on the cabbage, which not only protects the environment and has no pollution, but also can effectively prevent and control the cabbage worms, and the cabbage will grow as long as possible, and when the cabbage is ripe, you can eat delicious green cabbage.

You can use pesticides to control, which is the simplest and most effective, you can also use the grass ash produced when you burn the pot in the countryside, and the skill sterilization can also increase soil fertility, and if you have time, you can also catch insects every day.

Cabbage worm is one of the most common insect pests in vegetable planting, especially on radish cabbage is even more powerful, if you don't want to play pesticides, according to our common methods mainly have the following.

1. Expelled with Artemisia annua.

In our local villages, wild Artemisia annua can be said to be everywhere, so rural people often make rational use of resources, cut off wild Artemisia annua, and put it into manure ponds, latrines or fields, which can kill bacteria, insects, and fertilizer. Therefore, before we plant radishes and cabbage, we will also cut Artemisia annua into small pieces and bury them in the soil, which has a certain insecticidal effect. If cabbage worms are found on the leaves, you can also boil water with Artemisia annua, and spray the juice with water after cooling, which can also kill cabbage worms.

Second, use pyrethrum.

3. Use plant ash.

In rural areas, plant ash is the easiest to take, our practice is to sieve the plant ash with a sieve, take the washed grass ash and sprinkle it directly on the leaf surface of radishes, cabbage and other vegetables with cabbage insects. In addition, you can also fully soak the plant ash with water, generally soak for about a day, and then filter the soaked water to remove impurities, put in an appropriate amount of washing powder and stir evenly. Spraying vegetables with a mixture of plant ash and laundry detergent can kill some of the cabbage worms.

Fourth, you can also spray with garlic liquid and chili liquid with strong irritation

Choose the spiciest kind of chili pepper, take some chili garlic and put it in the pot to boil, wait for it to cool, take the chili garlic liquid and spray it on the radish and cabbage leaves. Spraying several times in a row can also effectively prevent small green worms.

1. Sprinkle grass and wood ashes. Because the plant ash is alkaline and inedible, sprinkling the plant ash on the vegetable leaves can prevent the cabbage insects from eating the vegetable leaves. 2. Artificial insect catching.

Manual insect catching is a more troublesome method, but it works well; 3. You can mash Chaotian pepper or garlic, add water to filter the juice, and then spray the juice evenly on the leaves of vegetables.

Rural plant ash can be used to control cabbage insects. Mix the plant ash with water. The proportion of mixing depends on the situation, and generally the water is 1 3 times that of plant ash.

If the infestation is severe, add less water. Soak the ashes in water for more than 12 hours, then filter out the soaking solution and spray them on the leaves of radishes or cabbage. If you want its effect to be better, you can also add a little trichlorfon to it, which can have a better effect.

You can mix the mashed cabbage worms with cabbage, and then spray them on top of the crops, so that you can have a dispersal effect, and you can also use green onions for control, garlic can also be used for control, and you can also carry out interplanting at intervals.

At this time, you can choose the method of interplanting, and you can plant garlic or pepper around the cabbage, which is spicy, and then can achieve the effect of killing insects.

If it is found, spray a large amount of clean water early to dilute the pesticide concentration on the cabbage leaves, so as to reduce the degree of pesticide damage.

Because of the pesticide damage caused by the spray of the leaves and plants, if it is found in time, the liquid has not completely penetrated into the plant, you can quickly spray the damaged plants with a large amount of water, 2-3 times in a row, try to wash off the drug on the surface of the plant, which can well alleviate the continuous development of the pesticide damage.

At the same time, it is recommended that we falsely add alkaline noodles in the sprayed water, because most pesticides are acidic, neutralization reactions will occur when encountering alkaline substances, reducing the efficacy, so it can speed up the decomposition of pesticides, thereby reducing the pesticide damage of crops.

If you don't use pesticides, you should water radishes and cabbage more and apply more fertilizers to them.

When planting, vegetable farmers can use the method of interplanting, in the cabbage, radish field, interplanting peppers, garlic and other spicy vegetables, these vegetables will exude a special strange taste in the growth process, directly make the cabbage worms escape from the vegetable garden from a young age, so that it can play a role in repelling insects.

You can put some other physical methods, and it is better to put some lights, which can be very good for insect prevention.

I think you can beat garlic into juice and then dilute it fifty times to spray, so that it can also have the effect of killing insects.

I think it's okay to have a few chickens so that the chickens can eat the bugs and there will be no pesticide damage.