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What kind of food does the "abnormal insect" silkworm eat? Why are you spinning?
China is the country of origin of sericulture and the main source of silk raw materials. It plays an important role in human economic life and cultural history. When I was in primary school, my favorite was to raise a few silkworm babies at home. What kind of food do silkworms eat? Why are you spinning? one
2020-11-11 "abnormal insects " Bombyx mori want to eat what food medium -
About the question of fish spinning!
About the question of fish spinning!
2018-07-10 -
How do silkworms spit out flat silk
Flat silk can be directly processed into calligraphy and painting silk paper, silk stickers, silk quilts and a variety of handicrafts, which can get a better price than ordinary silk products. So how to make the silkworm spit flat silk? the way is not to give cocoon harness in the process of silkworm rearing, but to put the silkworm on the plane and naturally spit out the flat silk; then after degumming. The following introduces several points that need to be paid attention to to let silkworm spit flat silk: the preparation of plane objects: each box of silkworms should prepare 35-40 square meters of Reed curtains, bamboo curtains and other plane objects before they are ripe. And
2019-01-15 -
Growth process of Silkworm, Bombyx mori
Growth process of Silkworm, Bombyx mori
2018-09-08 -
Use a rotary tiller to spin the land year after year so that crops can grow well.
Rotary tiller is also a new operation mode with the popularization of agricultural production mechanization in our country in recent years. It is certain whether rotary tiller operation is helpful to agricultural production, but rotary tiller operation also brings a lot of problems. Spin.
2018-05-15 -
The law of cocooning in silkworm spinning
The life of silkworm goes through four stages: egg, larva, pupa and adult. The larval stage of silkworm is called the stage of silkworm baby. Sericulture usually refers to the rearing of larvae. The larvae go through four molting times from hatching to cocooning. As a result, the process of the larva is divided into five instar stages. For a period of time before molting, silkworms do not eat or move, which is called sleeping. From the first to the fourth instar, the silkworm sleeps four times, and the fifth instar silkworm no longer sleeps in the later stage, but forms a cocoon and pupates in the cocoon, thus completing the larval stage of the silkworm. The newly hatched silkworm is called ant silkworm, which has just molted its skin.
2019-01-15 -
How do silkworms become silkworm moths? How many days does it take for the eggs to hatch? How many times do you have to shed your skin in your life? Four growth processes of silkworm babies
Bombyx mori, also known as silkworm, silkworm, is a common economic insect in southwest China, Jiangsu and Zhejiang, Anhui and other places, because it can spin silk and can be made into a variety of silk fabrics, how does the silkworm become a silkworm moth? How many days does it take for the eggs to hatch? You have to shed your skin several times in your life.
2020-11-11 Silkworms how to become silkworm moths eggs hatching need how many days silkworms -
Why do silkworms shed their skin?
Why do silkworms shed their skin?
2018-09-07 -
Let you raise silkworms in summer and autumn at ten o'clock.
I think we are still very familiar with silkworms. Sericulture has a history of thousands of years since ancient times. In ancient China, some people have planted mulberry and sericulture, so we should pay attention to certain techniques and skills in the process of sericulture. Let you have summer and autumn at ten o'clock
2020-11-08 Ten o'clock let you summer and autumn raise silkworms for silkworms I think everyone -
What kinds of silkworms do you have? What's the use of the tip on the tail?
Silkworm is the main raw material source of silk and plays a very important role in human cultural history and economic life. Bombyx mori are abnormal insects, the most common of which are silkworms, also known as silkworms, economic insects that usually use mulberry leaves as food to spin cocoons.
2020-11-11 Silkworm have what species tail upper pointed function -
The countryside saw the old coarse cloth again, full of memories.
The countryside saw the old coarse cloth again, full of memories.
2019-02-20 -
The reason why silkworms do not cocoon
1. Pathological factors. For example, purulent disease and malacia are easy to be infected before the upper cluster, which destroys the secretory function of silk glands of silkworm, or pathogens produce a large number of toxic metabolites in silkworm body, so that the nerves of silkworms are paralyzed and cannot be cocooned. 2, physiological factors. The first is the abnormality of the central silk gland, mainly because the feeding temperature is too high or too low, the leaf quality is too tender, the secretory gland is maladjusted, and the silk gland is abnormal, and the second is the abnormality of the anterior silk gland. it is mainly due to excessive exposure to bad gases such as gas, fishy gas, alcohol and so on.
2019-01-15 -
Control methods of Populus tomentosa pests
The larvae of Populus tomentosa, Populus tomentosa and holly were used as nests to damage host plants, and the damaged leaves showed yellow withered spots at the beginning, and then the whole leaves fell off. Silk spinning binds the leaves and the fallen leaves together, so that the leaves can not be extended, the growth and development is seriously affected, and the whole plant dies when the damage is serious. Shanghai has three to four generations a year, with serious overlap of times. In the vertical year, March activities began to pupate in mid-April, and Eclosion began in late April.
2019-01-11 -
A detailed picture of the growth process of silkworm babies
A detailed picture of the growth process of silkworm babies
2018-09-08 -
What to do after silkworm cocooning?
What to do after silkworm cocooning?
2018-09-07 -
Control methods of wild borer, Chilo suppressalis
The larvae of Populus tomentosa, Populus tomentosa and holly were used as nests to damage host plants, and the damaged leaves showed yellow withered spots at the beginning, and then the whole leaves fell off. Silk spinning binds the leaves and the fallen leaves together, so that the leaves can not be extended, the growth and development is seriously affected, and the whole plant dies when the damage is serious. Shanghai has three to four generations a year, with serious overlap; in the vertical year, it is active in March, pupation begins in mid-April, Eclosion begins in late April, and the first generation in early May
2019-01-16 -
Control methods of privet inchworm in garden ornamental trees
Distribution and damage of privet inchworm NaxaseriariaMotschulsky, also known as lilac inchworm. It belongs to Lepidoptera, Geometridae. Distributed in Northeast, North China, Northwest, Southwest and East China. The larvae are martyr, Beijing clove, weeping clove, lilac, Liaodong clove, white clove, privet, big leaf privet, sweet-scented osmanthus, camellia, tea, water wax, Fraxinus mandshurica and Fraxinus mandshurica. The larvae gather to feed on the leaves, often nibbling away at the leaves. The larvae have the habit of spinning and netting, and when it is serious, the net covers the tree crown.
2019-01-16 -
Prevention and control methods of silkworm without cocooning
First, the reasons why silkworms do not cocoon: 1. Pathological factors. For example, purulent disease and malacia are easy to be infected before the upper cluster, which destroys the secretory function of silk glands of silkworm, or pathogens produce a large number of toxic metabolites in silkworm body, so that the nerves of silkworms are paralyzed and cannot be cocooned. 2, physiological factors. The first is the abnormality of the central silk gland, mainly because the feeding temperature is too high or too low, the leaf quality is too tender, and the secretory gland is maladjusted, which causes abnormal silk gland, and the second is the abnormal silk gland in the anterior part, mainly because of feeding.
2019-01-16 -
Matters needing attention of sericulture in summer and autumn
Sericulture in China has been a thousand years of culture and history, so our country can be regarded as a large country with rich experience in sericulture. The matters needing attention in each season and stage of sericulture are different. Therefore, breeders should first understand the living habits of silkworms.
2020-11-08 Sericulture in summer and autumn points for attention in our country -
How to control mites in apple trees in summer?
How to control mites in apple trees in summer? Please introduce the harm of apple tree mites in summer: first, harm symptoms 1. Hawthorn spider mite. Also known as Hawthorn red spider, it mainly harms the leaves, buds and young fruits of apple trees. When the leaves are damaged, the red spiders live in groups on the back of the leaves, spinning and pulling the net, adhering to fine soil particles and eggs.
2018-07-19