egg cocoons Learn more about egg cocoons
-
What are the natural enemies of aphids? Does aphid cocoon wasp control aphids?
For growers, aphids are the biggest headache. How to eliminate aphids? Who are aphids most afraid of? Aphids are becoming more and more difficult to treat nowadays, especially in April and May, when aphids are at a high incidence. Let's take a closer look at what are the natural enemies of aphids. Aphid cocoon
2020-11-09 Aphids aphids natural enemies what are aphid cocoons bees control Mo for -
Growth process of Silkworm, Bombyx mori
Growth process of Silkworm, Bombyx mori
2018-09-08 -
Experience of separation of cultured earthworms and egg cocoons
For earthworms raised in boxes or beds in large farms, due to the addition of feed for many times, it is necessary to separate fecal particles from earthworms after 2-3 months, and the egg cocoons produced in feed also need to be separated from fecal particles. the methods of separation are as follows: 1) basket leakage method has been done several times.
2020-11-08 Breeding earthworms and egg cocoons how separation experience box culture -
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 -
A detailed picture of the growth process of silkworm babies
A detailed picture of the growth process of silkworm babies
2018-09-08 -
How do leeches grow in plastic foam boxes? Culture technique of attached leech
The use of water tanks, large plastic buckets, plastic foam boxes, buckets and other containers to cultivate leeches is simple, flexible and easy to operate, and can be used when raising a small number of leeches in rural areas. So how do leeches grow in plastic foam boxes? The following is the introduction of leech culture technology. 1. Water
2020-11-11 Leech how to use plastic foam box culture attachment culture technology -
Control Methods of Common Pests on Flowers and Plants--Silkworm Moth
Philosamiacynthia Walker et Felder belongs to Lepidoptera. The host plants mainly include walnut, pomegranate, citrus, castor, prickly ash, ailanthus, Chinese tallow, ginkgo, laurel, camptotheca acuminata, white orchid, sophora, willow, etc.
2018-08-19 -
Linyi Xiangcheng's special delicacies: smelly cinnamon fish, hairy eggs, cocoons, hairy eggs, how many have you eaten?
1. Although the smelly osmanthus fish smells a little smelly, the meat is very tender and tastes great! 2. A baked cake baked with charcoal. As soon as it comes down, it smells a very deep aroma. The cake is soft and delicious with a slightly crunchy edge. 3. Silkworms.
2018-05-26 -
New technology of rearing silkworm scientifically
The silkworm, Bombyx mori, is a completely metamorphosed silk-spinning insect among the thermophilic animals. After four times of sleep and five instar periods of 26-28 days, the larvae ate more than 20 grams of mulberry leaves to mature silk cocoon, the cocoon was white, the weight was about 1.8-2.3g, the cocoon shell rate was 20-23%, the silk length was 1000-1400 meters, and the silk diameter was 2.63.2 points. Usually, there are 1.8-20000 silkworms in a piece of silkworm eggs, which need 50,600kg mulberry leaves and can produce 30-40kg silkworms. At present, the new scientific breeding techniques have the following five points
2019-01-16 -
How to improve the quality of cocoon
How to improve the quality of cocoon
2018-07-23 -
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 -
Control of diseases and pests of diamondback moth in walnut tree
1. The symptoms of distribution and damage are omnivorous pests. The common pests are Spodoptera litura, Plutella xylostella, Spodoptera litura and Spodoptera litura, which are distributed all over the country. Feeding on leaves by larvae affects tree potential and yield, and is an important pest of walnut leaves. Young larvae feed on leaves
2020-11-27 Walnut trees stinging moths diseases and insect pests control distribution and damage -
Mastering six major measures can improve cocoon quality.
The poor quality of cocoon is directly related to the silk yield. The average silk yield of fresh cocoons in China has been maintained at about 11% for many years, while that in Japan is 19%. The reason is that apart from the influence of cocoon harvesting and drying technology and silk reeling process, the key lies in the cocoon quality.
2020-11-08 Master good six measures energy improve cocoon quality -
The breed knowledge of silkworm
The varieties of silkworms can be divided into three categories: 1. Due to different varieties, only one generation of diapause eggs occurs in a year. This variety develops slowly, after many days, the larva eats a large amount of mulberry, the silkworm body and cocoon shape are also large, and the silk is the most, but its physique is weak and can not adapt to the climatic conditions of high temperature and humidity, so it is suitable for breeding in temperate zones. 2. The second generation of diapause silkworm varieties occurs within one year, that is, the first generation produces non-diapause eggs and the second generation produces diapause eggs. This kind of product
2019-01-16 -
What to do after silkworm cocooning?
What to do after silkworm cocooning?
2018-09-07 -
How do earthworms reproduce?
The reproduction mode of earthworms: hermaphroditism, heterogamy, reproduction by banding to produce egg cocoons, reproduction of the next generation. Earthworms are androgynous, and the male reproductive organs are in the 10th. At the back of verse 11, there are two pairs of seminal vesicles, each with a testis and a seminal funnel.
2020-11-11 Earthworms how reproduction offspring earthworms way male and female -
Why is it difficult for traditional superior industries to move forward?
Zhejiang is known as the "house of silk", but now the silkworm, a traditional agricultural industry, is in crisis and going from bad to worse. A recent survey by the Department of Agriculture of Zhejiang Province shows that since 2008, the amount of silkworm eggs and cocoons in Zhejiang have been under six years in a row.
2016-03-20 Traditional advantageous industries why it is difficult to move forward Zhejiang has always been " -
How to raise silkworms
Silkworms are white and tender, slow and lovely. In addition to mass breeding in the aquaculture industry, many people are willing to raise silkworms in their own homes to relieve boredom. Today, let's learn how to raise silkworms. 1. How to raise silkworms. 1. Silkworms reproduce with eggs, like silkworm eggs
2020-11-11 Silkworm how raise silkworm whole body white tender tender -
A preliminary report on the study of larch leaf wasp
The main results are as follows: 1 Distribution and harm the silk leaf wasp after Larix gmelinii is mainly distributed in Heilongjiang and Jilin provinces. It is a dangerous pest in the leaves of Larix gmelinii, the damage period is from June to September, and it mainly harms the 10 ~ 30-year-old larch. The insect spreads quickly and does serious harm. The occurrence area of the Hailin Forestry Bureau was 300mu in 1985, and the area of the third generation larvae reached 150000 mu in 1986, of which 67000 mu were seriously damaged, and the highest population density was 21000 plants.
2019-01-16 -
How to raise silkworm pupa
Silkworms become silkworm pupae after spinning and cocooning, and many people are at a loss in the face of silkworm pupae and do not know what to do with them. So how to raise silkworm chrysalis? First, how to raise silkworm pupae to prepare silkworm rooms, silkworm tools and mulberry leaves, and thoroughly disinfect silkworm tools and silkworm rooms. Wait for the spring
2020-11-11 Silkworm pupa how to raise silkworms silkworms