Soak the prepared insect cages and trays in potassium permanganate solution for disinfection, and then rinse the solution with clear water to ensure cleanliness and sterility. The floor, walls, doors, windows and roofs of the insect house should be disinfected with potassium permanganate, and the heating facilities of the insect house should be installed after disinfection. According to the incubation time, heat in advance to make the temperature and humidity in the insect house meet the requirements of hatching nymphs.
Second, temperature and ventilation management.
Newly hatched nymphs are very strict about temperature. The temperature should be controlled at around 28℃, not too high. Nymphs over three years old have strong adaptability to temperature changes, generally at 25-28℃. Higher temperature, shorter molting interval, faster development, but not very strong physique; Low temperature, long molting interval, slow development, strong cold resistance and strong physique are called "hot molting" and "cold molting". You should choose "cold flow" management. The temperature difference between day and night should be as large as possible and can be controlled at around 5℃. If the insect likes to be dry, it generally doesn't need to spray water except to cool down.
If the insect is afraid of sultry heat, it should cooperate with the greenhouse to cool down and ventilate regularly, and open the window for ventilation when the temperature is the highest around noon every day. When the indoor temperature does not drop to the minimum, the ventilation time should be extended as much as possible. The air in the greenhouse should be fresh to prevent the invasion of smoke, wine, spices, cosmetics and other smells, so as to avoid nymph being affected.
Third, feed and feed.
There are three kinds of feed for slugs, namely, soybean (mung bean), sheep liver and carrot. Soybean contains a high content of plant protein, which is more than 36 grams per 100 grams. Sheep liver contains high content of vitamin A, carrots are rich in nutrition, and the crude fiber contained in them has excellent defecation effect, which is indispensable for nymphs. Mix 2 parts of soybean, 2 parts of carrot, 65,438+0 parts of sheep liver and 65,438+0 small bags of dry yeast and grind them into paste with a meat grinder. When feeding, cut the fresh leaves into blocks, spread the twisted feed on them and can them. You can put a few more pieces in each can, up and down, so you can eat nymphs. Because nymphs eat less, don't wrap the feed too thick to avoid wasting. Keep the food fresh every day. Feed it now, not every other day. Feed it regularly, 1 time a day, preferably twice.
Four, cage replacement and big sheath management.
With the increase of molting times, the nymph's posture is getting bigger and bigger, so it is necessary to move from the small cage to the big cage in time to prevent the nymph from affecting molting, movement and growth and development because it can't move in the small cage. The millet broken off the sorghum stalk should be put in a cage, so that the nymph can live and jump.
The last molting of the slug is commonly called "big sheath", and the height of the feeding trough in the big sheath period should be 2-3 times of the slug's body length, so that the molted new body has more room for maneuver. Branches and sorghum stalks usually placed in the pot should be taken out, and T-frames or tripods made of the pulp of sorghum stalks should be put back into the pot, with the top of the frame slightly lower than the mouth of the pot, so as to shed their skins. When molting, the slug climbs to the height of the bracket and hangs upside down under the pulp of sorghum stalk, so the claw flower can be caught in the pulp, which is very reliable. Slugs kept in sarong don't need to stand up. Slugs are strong when they catch the cage wall, and generally don't fall off. When molting, the head is down, and the new body falls off the sheath by gravity. Don't panic when molting, and don't make a loud noise and vibration, so as not to let slugs fall. In some cases, if you fall and bend your hind legs, you can slowly straighten the bent leg joints within 5 minutes. After a period of time, your limbs will become hard, so you won't worry about being disabled. After molting, the limbs are soft and should not be disturbed. Let them move naturally, and after a few hours, their limbs will completely harden.