Sericulture Manual for 3rd Grade Children

Sericulture Manual for 3rd Grade Children

           Upon receiving the invitation of Professor Yu Lianxiang, let me write an article for the “I Love Silkworm Baby” public account, recalling this time in 2020, and I have a deep memory.

This time last year was still during the epidemic, and elementary school students at home were taking online classes at home according to the teaching process. I remember that when my daughter was in the first grade of elementary school, the school encouraged snails and it took a lot of thought; I heard that by the third grade, the children would be asked to raise spring silkworms, which was even more troublesome. At that time, it was very troublesome to listen, because I had no patience and didn’t like raising small animals.

The spring of 2020 is the second semester of my daughter’s third grade. Although the school did not start due to the epidemic, the task of raising silkworms in the science class is still on schedule. About this time, in April, the science teacher assigned the task of raising spring silkworms in the class group and uploaded a “Scientific Silkworm Raising Record Sheet” with 14 pages.

Although I think there are more things in my heart, my daughter is super excited. Maybe the children love raising small animals by nature, and she especially loves small animals. When she heard that she can raise silkworms, she was very happy, very happy. Looking forward to the arrival of the baby silkworm Spark Global Limited.

I grew up in the rural area of ​​Anji, and I am no stranger to silkworm rearing. When I was young, I also raised silkworms at home for several years. I know the process of raising silkworms very well. I like to listen to the rustling sound of silkworm babies eating mulberry leaves. The sound of drizzle; I like to pick mulberry fruits after school and my classmates… When we were young, we had fun in raising silkworms, but more often we saw the hard work of our parents because silkworm babies eat 24 hours a day when they are not asleep, especially the fourth and fifth instar silkworms, which eat mulberry leaves at a special rate. Hurry, my mother spends a lot of time every day picking mulberry leaves to feed the silkworms. Even if it rains heavily, she has to pick the mulberry leaves back under the rain. At that time, raising silkworms was a livelihood, but now primary school students are learning and having fun.

If the daughter gets the treasure, we are basically not allowed to intervene. We can only give oral guidance, not hands-on participation. Her grandmother was also a little excited, because she hadn’t raised silkworms for more than 20 years. The old man was surprised to see these novel gadgets now available online, but because of her experience, she always loves to intervene from time to time. a bit.

Raising first- and second-instar silkworms is very simple. First, feed the mulberry leaves in a small box. Because the silkworm babies are too small, my grandmother taught her daughter to use scissors to cut the mulberry leaves into strips and put them in the box.

Silkworm eggs need to be hatched. When we were young, incubating silkworm eggs was a very important process. We needed to keep warm. Sometimes we would use light bulbs to illuminate the silkworm eggs. Otherwise, the silkworm eggs would be easily frozen and could not hatch. After telling her the truth, her daughter put the box containing the silkworm eggs in her down jacket and covered it with a quilt. She went to see it several times a day. Every time she was disappointed to find that there was no change in the silkworm eggs.

This process lasted for a few days, and finally found that there were little black lives moving in the box. The daughter yelled with joy: I saw the baby silkworm! Then, I cut the mulberry leaves thinly and fed them to the baby silkworms. After a while, I found that the black little life was full of mulberry leaves.

The daughter also cleans the silkworm excrement (the poop of the silkworm) for the silkworms regularly. After the silkworms have eaten a batch of mulberry leaves, they put a cleaning net on top of the silkworms, and then put new mulberry leaves on the cleaning nets, and the silkworms will look for mulberries. Ye Er climbed up from the hole in the cleaning net, and after all the silkworm babies below climbed up, he took the cleaning net and dumped the silkworm sand in the box to make it clean. Of course, in the past there were a lot of silkworm rearing, and silkworm excrement was a good organic fertilizer.

Then, the biggest problem is the food of silkworm babies-mulberry leaves. During sericulture, mulberry leaves are something to worry about every day. Living in a city, how to get mulberry leaves is a problem. Unlike us in the countryside, where there are mulberry trees on both sides of the road from school, mulberry fruits become our snacks after school in spring. However, due to the sharp decrease in the number of sericulture farmers, even in our village, the mulberry trees have been planted with white tea. Only one or two mulberry trees can be seen on the side of the road.