Tenebrio larvae like to cluster, live at room temperature 13 °C feeding, still able to grow above 5 °C, 35 °C above will cause a large number of deaths, larvae and adults have a large bite of small slaughter, lack of food will kill each other, larvae Sometimes bite the bite. Therefore, the insects, eggs, cockroaches, and adults of the same age should be screened and placed in their own containers. During the growth of larvae, the body surface color appears white, and the pupa changes to yellow-brown after the first rind, followed by pods once every 4 to 6 days, and 6 times during the larval stage. When the larvae reach the age of 2 to 3 cm in the 50-day-old body, they are sterilized in the feed. When phlegm is removed, the head is inverted in the feed, and the rubbing head is moved right and left to carry out phlegm-removal. At room temperature of 20° C. or more, the pupa becomes a week later. Adults. The adults had just white feathered wings and were soft and thin, and they turned hard and turned dark brown after 1 to 2 days. Likes to be active at night, crawls quickly and does not like to fly. One week after emergence, lay eggs. Feeding Tenebrio best place to choose the leeward sun, cool winter and summer house, the light should not be too strong, keep warm, the most suitable temperature is 20 °C ~ 26 °C, relative humidity 70%. When the temperature is high in the summer, the sprinkler cools down on the ground; in winter, it needs to be insulated to ensure the normal growth and development of Tenebrio. Adult breeding: Adults lay eggs 6 to 11 days after emergence. Before laying eggs, put a piece of white paper under a mesh sieve to allow the eggs to fall from the holes onto the paper. Change the paper once every two or three days. To change it one time a day, the date of spawning should be stated on the white paper, and the eggs should be placed in an empty box separately to facilitate hatching at the same time for easy management. After one week, the larvae were hatched, and then the small yellow mealworms were poured into a feeding container containing wheat bran. Can also be placed on a white sheet of adult insects, sprinkle some bran on paper, any adult eggs, every two or three days for a paper, the survival rate of 90%. Every time after taking the eggs, appropriate adult and green materials should be added to the adult insects to timely clean the waste or molting. For about 10 days, the adult insects should be recharged once. There may be eggs in the replaced material. Do not immediately remove them and concentrate them. Adults like evening activities, feeding more until late in the evening, green feed can be directly placed in feeding containers, allowing Tenebrio to eat freely. In summer, the temperature is high, larvae grow faster, and there is more pupa. It is necessary to feed more green material and provide enough water to feed some vegetables and fruits. Feed more when the temperature is high and feed less when the temperature is low. In the early stage of larvae, the concentrate feeds less, and when the skin is pupa it is fed or not fed. After the molting, the feeding amount increases as the body grows. The concentrate can also be mixed into small groups with water, cut into small pieces and placed on a sieve to allow them to freely ingest food. The amount of feed for one day is limited to the amount of feed consumed in the box at night. Use morning and evening bids and supplement at noon. In the feeding period of larvae, attention should be paid to the combination of fine and green materials. In the early stage, concentrates should be used as the main material, and green materials should be used as the supplement. In the later period, the material should be mainly green, and the fine material should be supplemented. Less mature larvae should feed more vegetables, which is beneficial to the growth and development of pupa and adults. Some old larvae have poor appetite performance after the phlegm phase and can add fishmeal to promote pupa. Due to the different growth rates, larvae have different sizes, which are sorted by size and boxing. There are 10,000 to 15,000 larvae per box, and 6000 to 8000 larvae. When the larvae phlegm more cast green material, is conducive to phlegm and eclosion after the pupa. Every day, we must pick up the cockroach in another box and sprinkle it with a layer of fine material. It is advisable not to cover the cockroach, avoid larvae, and keep the temperature and gas exchange. Tenebrio can grow and reproduce all year round. The birth cycle of the egg-larvae-paralysis until the emergence of adults is about 100 days. The length and length of each insect stage of Tenebrio extended and shortened due to the cold and heat of the temperature. Three to five days after the emergence of adult eclosion, copulation began, and the peak period of egg lay was within one or two months after copulation. Each female lays 280 to 369 eggs, an average of 304 eggs. The mating time is from 8 pm to 2 am, spawning on the feed, the eggs are milky white, oval, about 1 mm long, room temperature 25 °C ~ 27 °C, larvae can be hatched in 3 to 5 days, if room temperature At 13.5°C to 23°C, it takes 22 to 24 days. Adults eat their own eggs in the absence of food.
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