How to tell if a silkworm is sick?

1, healthy silkworms develop and grow neatly. If the body is large, develops too fast, and the age is obviously shortened, we should be alert to the occurrence of silkworm abscess. If you are too thin and of different sizes, you should be alert to silkworm shortening, caterpillar pinching, waste gas poisoning and so on.

2, look at eating mulberry: eating mulberry has a sound, if the sound is small or silent, be alert to silkworm disease. Pesticide poisoning. Silkworms will crawl around, gradually stop eating and spit out milk silk.

3, look at the body color: silkworms suffering from suppurative disease and chlorosis are milky white, shiny and easy to break, and discharge pus. The chest and tail of sick silkworm are sunken, and the tail and back are yellow-brown, which is its unique symptom. Before and after the cluster, if there are thick purple silkworms, it is caused by fly maggots drilling into the silkworm body. After the silkworm bodies with white and yellow stiff diseases are stiff, pink first appears from the tail and then gradually spreads to the whole body.

4, look at the posture: the junction or internode membrane of silkworm is swollen, so be alert to purulent disease, bacterial wilt and poisoning. The body of septicemia silkworm first becomes stiff, then becomes soft and decays quickly. Stiff silkworm carcasses gradually hardened.

Extended data:

Precautions:

1. Don't spray organochlorine pesticides, such as dimehypo, on the farmland near the silkworm house during the silkworm rearing period. Its fumigation will lead to silkworm poisoning. After feeding the silkworm leaves, make sure they are non-toxic. ?

2. It is forbidden to use mosquito-repellent incense or mosquito killer and insecticide in the silkworm room. When used in the house adjacent to the silkworm house, the doors and windows of the silkworm house should also be closed to prevent silkworm poisoning. ?

3. Screen doors and screens should be installed in the silkworm room to prevent flies from entering the silkworm room and hurting silkworm children, and silkworm emulsion or spray should be added to kill flies and maggots. ?

4. Before raising silkworms, block the rat hole, keep the silkworm frame at a certain distance from the wall, and sprinkle lime powder or silkworm medicine around the foot of the silkworm frame to prevent rats from climbing up. To raise ground silkworms, it is necessary to do a good job of killing rats with drugs. ?

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