Which animal can get rid of the pest of cabbage?

Treat insects with insects, and bacteria cause disease. Such as green worm fungus, bacillus borer.

To control the pests of cabbage, ladybugs, aphid-eating flies and parasitic wasps can be used.

Cabbage propagation and cultivation techniques.

Methods of reproduction. Fertilization and land preparation: 2000 to 3000 kg of organic fertilizer per mu, 60 kg of potassium sulfate compound fertilizer as base fertilizer.

Deep ploughing 30 to 40 cm, leveling and raking fine after ridge spacing, ridge spacing 60 cm, ridge standard for the bottom width of 35 to 40 cm, neck width of 20 to 25 cm, ridge height of 20 cm. The soil ridges are compacted to facilitate sowing.

Watering to create moisture: When the soil moisture is insufficient, it is necessary to water and create moisture before preparing the land after applying basal fertilizer.

Fine sowing: The main sowing method of Chinese cabbage in autumn is live broadcasting, which is divided into two methods: strip sowing and hole sowing.

Strip sowing: open a shallow ditch to a depth of centimeters in the middle of the ridge, spread the seeds evenly in the ditch and then cover the soil and compact, with a seed amount of about 120 grams per mu. You can also use cabbage seeding machine, sowing in the middle of the top of the ridge, with a seed amount of 80 to 100 grams per mu, and the seeding machine should be equipped with soil covering facilities.

Hole sowing: at the top of the ridge according to about 55 cm hole spacing, and the soil ridge perpendicular to the length of 10 to 15 cm, deep to centimeter of the ditch, each ditch sowing 5 to 6 seeds, after sowing cover fine soil centimeter compaction, per mu with 100 to 120 grams of seeds.

Cultivation techniques. Seedlings: 5 to 6 days after the emergence of seedlings, the first seedlings, to the weak and strong, strip sowing seedlings spacing 2 to 3 cm; When the Chinese cabbage has 3 to 4 leaves, the seedlings of the strip sowing plot are 8 cm, and about 3 plants are left in each hole when the hole is sown; After another 5 to 6 days, the third seedling is sent.

Seedling: Seedlings grow for about 25 days to reach the cluster stage, according to the plant spacing of 50 to 60 cm seedlings, leaving about 2,000 seedlings per mu. If the lack of seedlings is found, it should be replanted in time, and the seedlings should be watered in the afternoon or cloudy day on a sunny day.

Cultivating and weeding: 3 times of tillage, respectively after the second seedling, after seedling setting and in the middle of the rosette. Cultivating combined with weeding.

Reasonable watering: If the bottom moisture is insufficient, water in time after sowing to ensure that the seedlings are strong and strong. After thinning seedlings and setting seedlings, water 1 water each. Initial watering promotes the growth of trees. During the balling period, watering should be carried out in combination with top dressing, and the amount of watering should be large and uniform. In the later stage, appropriate water control promotes the core wrapping.

Timely top dressing: 15 to 20 acres of nitrogen, phosphorus and potassium compound fertilizer per mu at the rosette stage. At the beginning of balling, 30 to 40 kg of nitrogen, phosphorus and potassium compound fertilizer were applied per mu.

No more topdressing within 20 days before harvest. Combined spraying at the rosette stage begins with 1 spray of foliar fertilizer every 7 to 10 days, a total of 2 to 3 times, using a mixture of urea and potassium dihydrogen phosphate, sprayed after 16 o'clock.

Harvest: After mid-November, Chinese cabbage basically stops growing and enters the harvest period. After the beginning of December, it should be harvested in time to prevent frost damage.

There are many pests of cabbage, smaller pests, aphids, whiteflies, larger ones are leaf rollers, green worms, ground tigers and snails that come out at night. Ladybugs eat snacks from aphids and whiteflies. Shrike birds, magpies, etc., will eat larger bugs.

Frogs and toads eat ground tigers and snails that come out at night.

There are too many pests, snails use fireflies, and green insects ask birds for help.

Plantar fertilizer: control of downy mildew, plantar fertilizer, increase phosphorus and potassium fertilizer. Disinfection treatment:

To prevent and control black rot, seeds and soil should be disinfected in advance. Spraying: Cabbage suffering from anthracnose, spray thiophanate-methyl plus chlorothalonil.

Timely drainage: prevention and control of vitiligo, in daily maintenance, there is stagnant water discharged in time.

1. Apply plantar fertilizer

Cabbage is prone to downy mildew during the growth period, this disease mainly harms the leaves, the disease is the appearance of a white mold layer on the back of the leaves, the front of the lesions, the disease spots gradually spread when serious, and finally lead to the death of the plant, to prevent and control the disease, to apply foot fertilizer, increase the application of phosphorus fertilizer and potassium fertilizer.

2. Disinfection treatment

Black rot may occur on the seedlings and adult plants of cabbage, the leaves of the seedlings will show water-soaked lesions when the disease occurs, and the lesions on the leaves of the adult plants will appear on the leaf surface, and gradually expand to yellow-brown blight, to prevent and control this disease, the seeds and soil should be disinfected in advance, and the phenylene ether methyl ring can be sprayed in the early stage of the disease.

3. Spray the agent

If the leaves of the cabbage are pale, or there are small spots like water stains, and the leaves are sinking at the same time, and the whole plant dies in severe cases, it means that the cabbage is infected with anthrax, and it is necessary to spray 70% thiophanate-methyl wettable powder 1000 times and 75% chlorothalonil wettable powder 1000 times to prevent and control it in the early stage of the disease.

4. Drain water in time

Cabbage may suffer from white spot disease during the growth period, this disease harms the leaves, the initial stage of the leaf surface will appear gray-brown small spots, and then gradually expand into translucent lesions, and finally lead to the dry of the leaves, in the daily management to pay attention to the use of small water irrigation watering method, after the rain will be discharged in time, reduce the probability of infection with diseases.

Summary. In the production of vegetables, the pesticides that are strictly prohibited are: 666, DDT, chlordane, toxaphen, sodium pentachlorophenol, dicocidal carb, cidan, methyl, methamidophos, acemethamidophos, monocrotophos, phosphine, isopropylphos, trithion, high-efficiency phosphorus, dimethoate, fly phosphine, methylisomerphos, hypertonic dimethoate, synergistic methamidophos, amamidophos, tachyamide, hydroamidophos, methamide (3911), gale thunder, leaf amidophos, gramadan, zinc phosphide, fluoramide, bandethacarb, carbofuran, Tepercarb, methocarb (except cabbage), aluminum phosphide, dibromochloropropane, dibromoethane, arsenic, suhua 203, insecticide, Yishubao, tatogram, borericide, hydride, stag agent, ulcer net, 401 (antibacterial agent), diquat cream, putdam, Befurao, mercury preparations, herbicides, etc.

Hello, pro cabbage cabbage worm, can not use insecticidal double insecticide, to use cypermethrin, avermectin and other agents to prevent and control.

Which can be used, methocarb or BT preparation.

It is recommended that you use BT here

In the production of vegetables, the pesticides that are strictly prohibited are: 666, DDT, chlordane, toxaphenol, sodium pentachlorophenol, dicocarb, cidan, methyl, 1059, methamidophos, acemethamidophos, monocrotophos, phosphine, isopropylphos, sulfonate, high-efficiency phosphorus, dimethoate, fly toxin, methylisosulfonate, high oxygen, methamidophos, amamidophos, amamidophos, hydroamine, hydrophos, phosphos (3911), wind thunder, phosphos, chloramine, zinc phosphide, Fluorinated amide, dicarb, carbofuran, ferdicarb, methocarb (except cabbage), aluminum phosphide, dibromochloropropane, dibromoethane, arsenic, suhua 203, insecticide, Yishubao, tachycogram, borericide, hydride, stag agent, ulcer net, 401 (antibacterial agent), dichloride, putdam, Befuran, mercury preparations, herbamidine, etc.

Or you can also use Bordeaux liquid here, pro-<>

The best insecticidal pesticides for cabbage: biological insecticides, pyrethroid insecticides, phenylformylurea insecticides.

1. Biological pesticides

Biological insecticides are derived from pest-causing microorganisms, which are friendly to the food safety and production environment of agricultural products, and are the types of pesticides that should be preferred in all the pesticides for the prevention and control of cabbage cabbage insects, especially for the production of Chinese cabbage, and such pesticides should be the main pesticides in the prevention and control of cabbage insects. In the process of exerting their efficacy, this kind of insecticide generally needs to go through the process of host infection, expansion and reproduction, and gastric poisoning.

The biological insecticides for the control of Chinese cabbage greenworms include avermectin EC, Bacillus thuringiensis liquid, BT wettable powder, etc., which can be diluted with reference to the product packaging instructions in terms of concentration.

The most efficient application period of this type of pesticide is during the hatching period of the eggs, after the agent is sprayed on the eggs, the hatched larvae are easily infected and killed, and the killing effect is better. In the adult stage, after the cabbage worm eats the leaves with biological insecticides, it can also have a killing effect through stomach toxicity. This kind of drug can not be mixed with alkaline pesticides and fungicides, and the spraying time should avoid high temperature and strong light weather.

2. Pyrethroid insecticides

Pyrethroid pesticides are characterized by fast killing speed, high efficiency and relatively low pesticide residues after application, the principle of action of this kind of pesticide is to play a killing role by interfering with the nervous system of pests, but the disadvantage is that the resistance of cabbage insects will increase after continuous application, thereby gradually increasing the difficulty of control.

There are many types of pyrethroid pesticides, and the control of Chinese cabbage green worms can be used to control such agents including cypermethrin, cyhalothrin, octamethrin, etc., and the dilution concentration during application refers to the product packaging instructions. Special attention should be paid to the fact that this type of pesticide should not be applied more than three times per production season, and it is best to apply it alternately with other types of insecticides, and this type of drug has a toxic effect on bees, fish, etc., so it is necessary to pay attention to safety during storage.

3. Phenylformylurea insecticide

This is a new class of insecticides, which are easily degraded on agricultural products such as Chinese cabbage, as well as in soil and water, with low pesticide residues and almost no pollution to the environment. Phenylformylurea pesticide can inhibit the synthesis of chitin in eggs and larvae through gastric toxicity, and play a killing role in it, but it does not have a killing effect on adult worms, but it can cause sterility of adult worms and reduce the reproduction of pests.

This kind of pesticides for the control of Chinese cabbage green worms include chlorpyramide No. 3, fiproniclone, flubenzuron, pyrethon, bolturon, etc., and the specific dilution concentration refers to the product packaging instructions. This kind of pesticide can be used interchangeably with pyrethroid pesticides, this kind of agent is slightly toxic to fish and shrimp, non-toxic to bees but highly toxic to silkworms, and it is necessary to avoid silkworm breeding areas and mulberry trees where silkworms eat when spraying.