Small green worms on cabbage radish are rampant, what is the environmentally friendly way to get rid

Vegetable green worms are particularly serious pests in our country, mainly harming cruciferous plants, especially like to gnaw cabbage, cabbage, radish and other vegetables with thick leaves. Among them, the growth of cabbage is the most harmful to cabbage insects, and it must be sprayed to prevent it in cultivation. Otherwise, the cabbage will be eaten, and there will be no residue left.

The harm of cabbage and radish to vegetable green worms is relatively light, and large-scale planting needs to be sprayed for prevention. Plant a few trees in a small area of the family, which can be set aside with some soil methods. The cabbage worm is the larvae of the cabbage butterfly, and the egg-laying of the cabbage butterfly is particularly severe.

Especially broccoli, Brussels sprouts have a tendency to spawn, followed by cabbage and cabbage. Butterflies prefer to lay eggs on this plant. More than 100 200 eggs are laid each time, and up to more than 500 eggs.

Compared to powdery mildew, vegetable green worms ** are very good. Especially caterpillars know not to move and eat all day. In this case, the sprayer dies.

Cabbage worms are particularly suitable for catching. Every morning when there is dew on the vegetables, the cabbage worms hide under the leaves, or the cabbage sums hold on motionless one by one. The way to find cabbage worms is also very simple.

It's also easy to look at the eyes of bugs and the droppings of bugs. If it's one of them, if you focus on it, you'll definitely be able to find cabbage worms. Homemade pesticides are used for home vegetable growing.

Commonly used chili pepper juice, garlic juice, green onion juice, washing powder, soap solution, etc. have a certain medicinal effect on aphids and red spiders and other small insects, but have little effect on preventing vegetable green worms.

However, cucumber plants and loofah plants have a special smell, and if you grind the plants and sprinkle them on the cabbage or radish, you can drive away the butterflies and prevent the cabbage or radish from laying eggs. Mix the mashed green worms and detergent and spray them with water. Specifically, catch the green worms in the cabbage, soak them in water for a day, wait until the green worms rot and deteriorate, and then sprinkle them on the cabbage with the putrefactive liquid, water, and clothes, which can not only protect the environment and not pollute, but also effectively prevent vegetable green worms.

Onions, were you surprised when you heard that you could use garlic? Honestly, first time hearing this, but this one does work. We have 2 3 garlic, 1 melon, sprinkled with water on the cabbage after mashing.

This is also effective for prevention. The same goes for onions. Mash the water and sprinkle over the cabbage.

This is really environmentally friendly for our cabbage, and it is very safe to eat. Grass wood is known to be both a fertilizer and an insecticide, and proper use can act as an insecticide and foliar fertilizer. Therefore, if we want to prevent vegetable greenworms, soak the grass and trees in advance because it is necessary to soak them all day.

If you don't want to soak, you can directly sprinkle grass and wood on the leaves of vegetables to effectively prevent cabbage insects and make cabbage grow bigger.

First, it can take the method of intercropping, and remove it as soon as possible when it is found that there are different plants; Second, you can sprinkle plant ash on vegetable leaves; Third, you can spray the juice of garlic or green onions on the leaves to prevent biting.

First, plant ash is prepared and simply sieved to remove impurities. Then, take the plant ash and water and weigh it, bottle and mix the plant ash and water according to the ratio of 1 to 1, and then shake it well. After soaking for 10 hours, the bottom of the bottle is plant ash, and the upper part is plant ash leach.

Finally, take the juice from the top and pour it into a watering can and use.

1.Mix and mix multiple vegetables and plant them at intervals 2Use plant ash precipitate solution spray control, or directly sprinkle plant ash on vegetable leaves 3Tomatoes are mashed into juice, which can also prevent some bugs.

Artificial pest control. This method is also simple, it is the simplest and easiest method, it is a little more troublesome, because the cabbage insect belongs to the second peak season in autumn, so the insect infestation is very heavy, and the workload of manual insect removal is relatively large, and it is basically necessary to exterminate insects every day.

To kill cabbage insects on radish cabbage, biological agents such as Bacillus brevis, Bacillus thuringiensis, azadirachtin and karyotype polyhedrovirus can be selected.

Expand your knowledge: How is radish cultivation seeded and managed?

First, select and prepare the land.

Radish varieties should be selected with strong disease resistance, high yield, good appearance, and suitable for local market sales. The fleshy roots of radish are relatively developed, so it is suitable for planting in loose and fertile areas, strong water and fertilizer retention capacity, and convenient drainage and irrigation.

A few days before sowing, try to plough the soil and dry it, and apply about 3,000 kg of decomposed organic fertilizer, about 15 kg of urea, 30-40 kg of superphosphate, and about 10 kg of potassium sulfate as base fertilizer. Then the rake is finely leveled, leaving no large clods of soil, so as not to affect the emergence of seedlings.

2. Sowing and management.

1. Radish should not be planted with stubble, and should also be avoided with cruciferous vegetables to avoid pests and diseases, because it will affect the quality and quality of radish.

2. The early growth of radish is mainly based on basal fertilizer, if there are weak seedlings after the seedlings are full and the growth is not good, the fast-acting nitrogen fertilizer can be applied in time. Try not to chase fast-acting fertilizer after the seedlings are set, so as not to grow the seedlings and affect the swelling of fleshy roots. Although the water requirement of the seedling stage is small, it is necessary to ensure that the soil is moist and not dry.

When the roots begin to swell, about 10 kg of urea per mu is applied, and phosphorus and potassium fertilizers are added at the same time, such as the polymerization of potassium dihydrogen phosphate by soil chefs.

3. When the root of radish is in peak growth period, the amount of water supply should be increased, and the soil moisture should be kept at about 70-80%. to prevent hollow turnips. During this period, about 10 kg of urea can be applied with water during watering, and micro-fertilizer supplemented with soil trace elements can be used to ensure the quality of the fleshy roots of radish.