CATDOLL : CATDOLL: Beanworm breeding cycle and conditions technology (Beanworm breeding cycle and conditions technology paper)

1. Which month is best for raising bean worms outdoors?

Bean worms will pupate in the soil in May and June every year. At this time, soybeans need to be planted again in the breeding fields to provide food for the bean worms. Wait until late June to early August, when the bean worms will hatch into bean hawk moths and then lay eggs on the surface of soybean leaves. Each female moth can lay 200-300 eggs.

Feeding method

When raising bean worms, you need to wait for the eggs to hatch and then raise the newly born larvae indoors. You need to choose a well-ventilated greenhouse or bungalow as the breeding place, put wooden boxes or cardboard boxes in the breeding place, and then place the bean worms in the box. Feed the bean worms with soybean leaves 1-2 times a day.

2. What are the conditions for breeding bean worms?

Preparation for bean worm farming

Preparation for outdoor bean worm breeding: soil, bean seeds, pest control. A good start is half the battle. The more thorough the preparations for breeding, the easier it will be later.

1.1 Soil treatment: deep ploughing, artificial killing, root pesticide killing

1.2 Soybean planting: Soybeans are planted around June. You can choose yellow beans and green beans.

1.3 Pest control for bean plants: 20 days before laying eggs, use emamectin benzoate insecticide to remove pests

Mid-term preparation for bean worm farming

How to breed bean worms? High-quality bean worm eggs are essential. Novice breeders lack seed production technology and can only buy eggs for bean worm breeding in the early stage.

2.1 Egg selection: Be sure to choose a regular bean worm breeding organization, which has high quality and is guaranteed

2.2 When to buy eggs: If you don’t want to harvest beans, you can hang eggs when the bean plant is 50cm tall. Otherwise, you have to hang eggs after flowering.

2.3 Egg hatching: The eggs will hatch within a week and need to be attached to the bean plants in time

Mid-term management of bean worm farming

Want to grow bean worms well? Careful field management is a must! The more you put in, the more you gain, and the more money you can make.

3.1 Environmental assessment: Stay away from pesticide-contaminated areas. If there are many birds in open-air breeding, insect-proof nets are required for protection.

3.2 Field management: Careful management and solving various problems in the process of raising first-instar bean worms to fifth-instar adults

3.3 Sales: The wholesale price of open-air breeding is 40-60 yuan per catty. Choose a suitable price for sales.

Advanced bean worm farming

How can we raise them better? Advanced research on greenhouse farming Greenhouse farming is more challenging than open-air farming, and can also bring more profits.

4.1 Adults hibernate: Select the seeds, bury them in the soil, and control the soil temperature and soil covering depth.

4.2 Film insulation: In the wintering period, use insulation film to ensure the safety of the hibernating larvae of the bean moth

4.3 Emergence and egg laying: The bean worm pupae will pupate and emerge next year, and the successfully paired bean worms will be collected for centralized egg laying.

3. How long does it take to grow bean sprouts?

Bean Dan breeding cycle:

If the breeding period is calculated from the time the bean worms hatch, the breeding period of bean worms is generally about 27 days. They can be harvested about 27 days after hatching, but the breeding methods are different, so the specific breeding period needs to be determined according to the actual situation. Bean worms are also called bean worms. They mainly parasitize crops such as soybeans, mung beans, cowpeas, locusts, and grapevine leaves. Adults hide during the day and come out at night. They like to eat nectar and have strong flying ability, and can fly long distances.

4. How to raise bean worms and where to buy the larvae?

1. Set up breeding fields

Find a field with high terrain, sunny and windproof, well-drained and ventilated as a breeding field. Set up a breeding field about 3 meters long and wide. Then surround the field with a fine net, generally more than 1 meter high. If it is less than 1 meter, it is easy for the slugs to escape. After selecting the land, prepare the land at the end of May, and plant soybeans in June after fertilizing.

2. Seed collection

You can go to the wild to catch mature larvae and then raise them in the field. About 80 wild larvae should be raised in 1 square meter of breeding field. Then the larvae can feed on the soybeans planted, and after a period of feeding, they will begin to hibernate in the soil in September. Then cut the soybeans, do not plow, and maintain the environment. You can also directly buy larvae and raise them.

3. Pupation, egg laying, hatching

In April, the temperature rises and the insects pupate in the soil. During the pupation period, soybeans should be planted again. In June, they will emerge as adults and then start to lay eggs. The eggs are usually laid on the back of soybean leaves. Adults lay eggs three hours after mating. During this period, they should be prevented from flying away from the breeding fields. An adult insect lays more than 200 eggs at a time. In July, most of the eggs will hatch.

4. Feeding

Plant soybeans for food before pupation. Larvae in a 9-square-meter breeding field need one or two acres of bean leaves for feeding during the entire larval period. The hatched larvae can be raised indoors, just like raising silkworms, in separate pools, covered with gauze to prevent escape, and fresh bean leaves can be picked and spread for feeding. The amount of feeding leaves increases as the larvae age increases.

5. Seed saving

In September, we need to select strong and mature larvae and put them in the breeding field to let them overwinter, and then pupate and hatch new larvae in the next year. This is to save the insect seeds for the next year, and it is necessary to save seeds in this way every year.

Friends who want to raise bean worms can also search and purchase bean worm seedlings on the Huinong website.

5. What is the whole process of bean worm breeding?

If you want to grow bean worms, you must first build a greenhouse in a relatively high place with good drainage. When choosing bean worms, you must choose those that are about to be buried in the soil or have already been buried in the soil. Then you need to deep plow and shallow harrow the soil in the greenhouse and make ridges after leveling. The film and net should be buried deep in the soil, with a depth of 15-20cm. Put the selected bean worms in the ridges and cover them with soil. The depth of covering should be 10-15cm.

1. Bean Dan breeding technology

1. Site selection

Taking the cultivation of bean worms in greenhouses as an example, the greenhouses are generally built in places with relatively high terrain and good drainage.

2. Seed selection

(1) When selecting the source of bean worms, you must choose bean worms that are about to be buried in the soil or have already been buried in the soil as the source of seeds.

(2) In terms of characteristics, it is generally necessary to select beans with a ring-shaped or straight stick-shaped shape. Do not choose beans with strong vitality as seed sources.

3. Breeding management

(1) Land: The soil in the greenhouse needs to be deeply plowed, shallowly harrowed, and leveled before making ridges.

(2) Covering with film and net: Generally, the film and net should be buried deep in the soil, at a depth of 15-20 cm, to prevent the bean worms from escaping.

(3) Depth of soil covering for bean worms: Place the selected bean worms in the bed and cover them with soil. The appropriate depth of soil covering is 10-15 cm. If the soil covering is too thick or too thin, it will affect the growth of bean worms.

(4) Soil nutrients: After the bean worms enter the soil, the moisture content in the soil must be maintained. When the soil moisture is insufficient, water should be sprayed in time to replenish it, but there should be no stagnant water in the soil.

(5) Temperature: In winter, the temperature of the greenhouse should be maintained at around 10-25°C; in March and April, the temperature should be maintained at around 25°C; when the bean sprouts are about to enter the pupation period, the temperature of the greenhouse needs to be above 25°C.

4. Prevent and control natural enemies

(1) Generally, during the winter, the main control measures are ants and other natural enemies. Ants can be killed by luring them with cooked meat, while other natural enemies can be killed by mixing wheat bran with agricultural trichlorfon.

(2) In the first 20 days of soybean emergence and after soybean planting, natural enemies such as blind bugs, ladybugs, and mantises need to be controlled. When using pesticides, be careful not to use pesticides that soybeans are sensitive to.

5. Induce Bean Dan to lay eggs

(1) Because the bean pods lay eggs irregularly and in large numbers both in the shed and on the ground, it is necessary to induce the bean pods to lay eggs.

(2) During the bean larvae's egg-laying period, a sweet and sour solution should be evenly sprayed on the bean leaves to allow the bean larvae to lay their eggs on the leaves, which can increase the survival rate of the larvae.

6. Planting soybeans

(1) Choosing soybean varieties: Choose soybean varieties with high protein content, tall plants and large leaves, such as Dongxin No. 3.

(2) Sowing period: The sowing period of soybeans should be determined according to the emergence and egg-laying period of soybeans. Generally, soybeans should be sown 40 to 50 days before the emergence and egg-laying period.

(3) Planting density: The soybean planting density is 5,000-8,000 plants per mu, and the row spacing is not less than 67 cm.

(4) Managing soybeans: Before soybeans bloom, regularly inspect the soybean fields to ensure ventilation and light penetration between the rows, increase the number of green leaves, and make the leaves larger, thicker, and of higher quality.

7. Feeding and management

(1) Because adult bean moths lay eggs unevenly, when the larvae are in the 2nd or 3rd instar, it is necessary to sparsely plant the leaves so that the larvae can eat enough leaves in time.

(2) At the same time, the larvae’s exercise volume should be reduced to lower the nutrient consumption in the body.

8. Harvesting Bean Dan

(1) Considering the quality of the bean curd, it is generally necessary to harvest it in time before it enters the soil at the fifth age.

(2) Considering the market situation, the bean larvae can be harvested when they are in the fourth instar.

(3) Generally, when harvesting, you should choose larvae with flat heads. Larvae with pointed heads have low nutrition and are not edible.

9. Things to note when raising the next batch of bean curd

(1) Before breeding the next batch of red beans, the greenhouse should change the crop rotation to reduce the base number of insect pests, which is conducive to breeding the next batch of red beans.

(2) If the crop rotation cannot be changed in time, it is also necessary to remove all the films and nylon nets in the greenhouse, then deep plow and water, and repel insects to reduce the pest coefficient.

6. How long does it take to cultivate bean worms?

About 27 days

If we count the breeding period from the time the bean worms hatch, the general breeding period of bean worms is about 27 days, and they can be harvested about 27 days after hatching.

It is required to build a greenhouse for breeding bean worms in a relatively high place, and the surrounding environment should be conducive to drainage.

The soil needs to be deeply plowed and shallowly harrowed, and then leveled to make ridges.

Generally, you need to choose bean worms that are about to enter the soil or have already entered the soil as the seed source. When selecting based on characteristics, the bean worms should have a ring-shaped or straight rod-shaped appearance. Note: do not choose bean worms with strong vitality as the seed source.

Place the selected bean worms in the bed and cover them with soil (10-15 cm is appropriate). If the soil is covered too thickly, the soil temperature will be too low and the development and pupation will be slow. If the soil is covered too shallowly, the soil surface temperature will be too high and the surface moisture will evaporate easily. The bean worms will run to the surface, reducing the moisture in their bodies and even die.