What s the matter with the silkworm s feet facing upwards and motionless? 5

There are two possibilities: one is that the mulberry tree may have just been sprayed with pesticides, and the mulberry leaves will be replaced immediately;

The second is that there may be dew on the mulberry leaves, so be sure to dry each leaf.

Silkworms like to eat mulberry leaves.

After receiving the silkworm seeds, place the silkworm seeds in the prepared silkworm box, which is generally an ordinary paper box, but ensure that the silkworm box is clean and odorless. From the date of delivery, the silkworm seeds will hatch naturally into silkworm ants in a room temperature environment with a temperature of 21-29 degrees Celsius, and will naturally hatch into silkworm ants for about 11 days (including the delivery time).

Silkworm ants have an appetite about 40 minutes after hatching, and the feeding process begins at this time. Take out the prepared fresh young mulberry leaves from the refrigerator, wait for the mulberry leaves to return to room temperature, cut them into small pieces with a knife and put them in the silkworm box, and the silkworm ants will automatically climb onto the mulberry leaves to eat. It generally takes about 27 days (divided into 5 instars) for silkworms to hatch and cocoon up the mountain from hatching to hatching.

The first to third instar silkworms should be fed with more tender mulberry leaves, and the fourth and fifth instar silkworms can use ordinary mulberry leaves.

Silkworms are suitable for growing in an environment with a temperature range of 22-29 degrees Celsius, and their optimal growth temperature is around 27 degrees Celsius. The mulberry leaves that a silkworm eats in its lifetime are about 25 grams. For example, if you feed 40 silkworms, you only need 1 kg of mulberry leaves.

But in the actual feeding process, there will be some mulberry leaves wasted, so that more mulberry leaves will be needed.

After the fifth instar, the silkworm should stop eating mulberry leaves and start looking for a suitable place to spin silk and form a cocoon (also called a mountain cocoon). In rural areas, grassy hills or pine branches made of straw are generally used as silkworm hills. Silkworms that are fed as pets can be replaced by a cardboard box divided into many small compartments.

Precautions for sericulture.

1. Mulberry leaves are fresh.

1. Place the mulberry leaves in the refrigerator (about 5 degrees Celsius) to prevent spoilage.

2. Tie the mouth of the plastic bag tightly to slow down the drying and dehydration time of mulberry leaves.

2. Feeding of silkworms.

1. Take out the mulberry leaves from the refrigerator and wait for a few minutes to restore the mulberry leaves to room temperature before feeding.

2. Do not wash mulberry leaves and keep them in a natural state.

3. For the feeding of second-instar silkworms, please choose tender mulberry leaves, 1-2 pieces per day.

4. The feeding time can be selected in the morning or noon.

3. Other precautions.

1. Don't catch silkworms with your hands, use the soft bristles of the brush to catch up;

2. Do a good job of cleaning the silkworm house every day;

3. The silkworm house should be placed in a cool place (about 25 degrees Celsius).

It's its favorite! It may also be molting.

1. The reason why the living silkworm is motionless is that it is about to molt.

2. The amount of cannibalized mulberry is very large, so it grows very quickly and its body color gradually fades.

3. But its appetite gradually decreases and even fasts completely, it spits out a small amount of silk, fixes its stomach and feet on the silkworm seat, raises its head and thorax, and no longer moves, as if it is asleep, which is called "sleep".

4. The sleeping silkworm seems to be stationary on the outside, but the body is preparing to shed its skin, and after taking off the old skin, the growth of the silkworm will enter a new age stage, from the ant silkworm to the silkworm cocoon a total of 4 times.

5. Sleeping is one of the growth characteristics of silkworms, and sleeping is the genetic trait of silkworms, which is also affected by the environment.

Sunbathe. Or die.

1. Why do silkworms keep swaying from side to side with their heads up.

2. Why does the silkworm keep holding its head still for 2 years?

3. Why does the silkworm keep holding its head up.

4, why did the silkworm crack Kai Zhengmo kept raising his head.

1.The silkworm keeps its head up, indicating that it is molting or preparing to form a cocoon, which is a normal condition for the physiological development of the silkworm. Repentance.

2.Silkworms have four stages, which are egg, larva, pupa, and adult.

3.Among them, the larvae have several molts in the process of growth, and will gnaw on mulberry leaves before molting, and then will enter the dormant period, at this time they will remain motionless, and will come out of the old skin after the dormant period.

4.When the silkworm is about to molt, the body will become a little transparent, and the color of the body will gradually fade.

5.Tips: The temperature of silkworm raising in summer and autumn is high, so it is necessary to open doors and windows and strengthen indoor ventilation.

6.Mulberry leaves are sprayed with clean water, and the indoor electric fan blows a breeze, which is conducive to indoor cooling.

7.If the diseased silkworms are found, they should be cleaned up in time, put into a disinfection basin containing bleaching powder solution or lime slurry, and it is forbidden to feed the diseased silkworms to livestock and poultry to prevent the spread of pathogens and pollute the environment.

8.High temperature in summer and autumn, pathogens multiply quickly, so it is necessary to pay attention to picking leaves on demand, transporting leaves in time, and storing leaves reasonably.

9.The mulberry storage pond should be disinfected once at each age, and mulberry leaves should not be fed overnight.

Summary. Hello, the silkworm head is raised because the silkworm has begun to molt, and the outer skin of the silkworm is about to begin to molt; Before the cocoon, the pulled by the silkworm baby will be abnormally large, and the skin feces will be larger every time it is shed, but this time it is not peeled, and the leaf particles in the feces can be seen, the leaves are almost not digested, and the body is transparent, which is the characteristic of the cocoon. Before molting, it will nibble on mulberry leaves, and then it will enter the sleep period, at this time it will be motionless, and when it has passed the sleep period, it will come out of the old skin.

If it's already large and transparent, it's about to start cocooning. Hope it helps you, <>

Why do silkworms hold their heads high? And it's motionless.

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Hello, the silkworm head is raised high because the silkworm has begun to molt, and the outer skin of the silkworm is about to begin to molt; Before the cocoon, the of the silkworm baby will be unusually large, and every time the skin is taken off, it will be larger, but this time it is not rolled Zen skin, and the leaf particles in the feces can be seen, the leaves are almost not digested, and the body is transparent, which are all characteristics of the cocoon. Before molting, it will gnaw on mulberry leaves, and then it will enter the sleep period, at this time it will be motionless, and after the sleep period, it will be judged from the old skin to be taken out. If it's already large and transparent, it's about to start cocooning.

Hope it helps you, <>

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1. The reason why the living silkworm is motionless is that it is about to molt.

2. The amount of cannibalization mulberry is very large, so it grows very quickly and its body color gradually fades.

3. But its appetite gradually decreases and even fasts completely, it spits out a small amount of silk, fixes its stomach and feet on the silkworm seat, raises its head and thorax, and no longer moves, as if it is asleep, which is called "sleep".

4. The sleeping silkworm seems to be stationary on the outside, but the body is preparing to shed its skin, and after removing the old skin, the growth of the silkworm will enter a new age stage, from the ant silkworm to the silkworm cocoon molting a total of 4 times.

5. Sleeping is one of the growth characteristics of silkworms, and sleeping is the genetic trait of silkworms, and it is also affected by the high environment of Huansong.

1. The reason why the living silkworm is motionless is that it is about to molt.

2. The amount of cannibalized mulberry is very large, so it grows very quickly and its body color gradually fades.

3. But its appetite gradually decreases and even completely fasts, it spits out a small amount of silk, fixes the gastropods on the silkworm seat, raises the cephalothorax, no longer moves, as if asleep, and calls the ruler "sleep".

4. The sleeping silkworm seems to be stationary on the outside, but the body is preparing to peel, after taking off the old skin, the growth of the silkworm will enter a new age period, and the sedan hand will molt a total of 4 times from the ant silkworm to the silkworm cocoon.

5. Sleeping is one of the growth characteristics of silkworms, and sleeping and sleeping is the genetic trait of silkworms, which is also affected by the environment.