CATDOLL : CATDOLL: Which month is the best time to raise silkworms? (Which month is the best time to raise silkworms?)

1. Which season is suitable for raising silkworms?

Spring or Summer

Answer 1. Silkworm rearing time: Generally, silkworm rearing takes place in spring and summer (starting around April). Silkworms mainly feed on mulberry leaves, so silkworm rearing needs to be basically consistent with the growth cycle of mulberry trees, so that there are enough mulberry leaves for silkworms to eat. 2. Silkworm rearing frequency: In Jiangsu and Zhejiang silkworm regions, silkworm rearing can be carried out theoretically from April to November each year, but generally only 3-5 times.

2. What is the best time to breed silkworms?

It is best to start growing the mulberry trees after May 1st, because the leaves are already very large at that time and picking them will not affect the growth of the trees. However, you should still grow less at first and gradually grow more.

1. Living habits: Silkworms are metamorphosis insects, the most common of which is the mulberry silkworm, also known as the domestic silkworm, one of the economic insects that feeds on mulberry leaves and spins silk and makes cocoons. The mulberry silkworm originated in China, and its development temperature is 7-40℃, and the suitable temperature for breeding is 20-30℃. Silkworms feed on mulberry leaves, and their bodies turn white after eating mulberry leaves continuously. After a period of time, they begin to shed their skins. The molting lasts for about a day, and they do not eat or move like sleeping. This is called "hibernation". After molting once, it is a second-instar larva. It grows one year older every time it molts. The larvae molt four times in total, becoming fifth-instar larvae, and then eat mulberry leaves for 8 days to become mature silkworms, and begin to spin silk and make cocoons.

2. Distinguish between male and female:

Some characteristics of silkworm eggs, larvae (silkworm babies), pupae, and moths can be used to identify the sex of silkworms. However, the most widely used method is to identify the sex of old silkworms, pupae, and moths.

The most reliable feature for identifying the sex of silkworms is the eighth and ninth abdominal segments: there are four transparent spots on the ventral surface of the eighth and ninth segments of female silkworms; there is a transparent spot in the center of the ventral surface of the ninth segment of male silkworms.

The characteristics of male and female pupae are also used to identify the structure of the eighth and ninth abdominal segments. In the middle of the ventral surface of the eighth and ninth abdominal segments of the female pupa, there is a straight line that separates the eighth and ninth abdominal segments; while in the middle of the ventral surface of the ninth abdominal segment of the male pupa, there is a pair of small protrusions and an x-shaped symbol.

As for distinguishing male and female moths, in addition to identifying features such as antennae and abdomen size, the most reliable way to identify male and female moths is by their external genitalia. For example, the female moth has a black bone plate near its mating hole, and the male moth has a pair of claspers.

3. Is August still suitable for raising silkworms?

August is not suitable because spring silkworms, spring silkworms, spring is a good season for silkworm breeding. August is out of season.

4. When is the best time to raise silkworms?

Generally speaking, it is more suitable to raise silkworms in spring and summer, which is roughly between April and July. The best time to raise silkworms is roughly the same as the growth cycle of mulberry trees, because only at this time can an adequate supply of mulberry leaves be guaranteed and the silkworms can grow healthily.

The advantages of raising silkworms in spring are that the weather is mild and the quality of mulberry leaves is better, so the silkworms are of higher quality and yield. The time for raising spring silkworms cannot be too late, and it can be done around April. Otherwise, if the weather is bad later, the number of silkworms will be greatly reduced.

5. Which month is best for raising silkworms in Sichuan?

The season for raising silkworms is generally spring and summer every year. Since the main food of silkworms is mulberry leaves, the season for raising silkworms needs to be basically consistent with the growth cycle of mulberry trees to ensure sufficient mulberry leaves. In the silkworm areas of Jiangsu and Zhejiang, silkworms can be raised theoretically in the eight months from April to November, but only 3-5 times a year. The silkworm areas in the Pearl River Basin raise silkworms more often than those in Jiangsu and Zhejiang, and some silkworm areas around the Yellow River or in the north raise silkworms less often than those in Jiangsu and Zhejiang.

Generally speaking, the silkworm breeding season is spring and summer every year (starting around April each year). Since the main food source of silkworms is mulberry leaves, the silkworm breeding season and the growth cycle of mulberry trees need to be kept roughly the same to ensure that there are enough mulberry leaves to feed the silkworms.

6. When is the best time to raise silkworms?

Generally speaking, it is more suitable to raise silkworms in spring and summer, which is roughly between April and July. The best time to raise silkworms is roughly the same as the growth cycle of mulberry trees, because only at this time can an adequate supply of mulberry leaves be guaranteed and the silkworms can grow healthily.

The advantages of raising silkworms in spring are that the weather is mild and the quality of mulberry leaves is better, so the silkworms are of higher quality and yield. The time for raising spring silkworms cannot be too late, and it can be done around April. Otherwise, if the weather is bad later, the number of silkworms will be greatly reduced.

7. What is the general season for raising silkworms?

Silkworms are usually raised in spring and summer. The growth cycle of silkworms should be roughly the same as that of mulberry trees to ensure an adequate supply of mulberry leaves. Silkworms are metamorphosed insects, and the most common one is the mulberry silkworm, also known as the domestic silkworm, which is one of the economic insects that feeds on mulberry leaves and spins silk cocoons.

1. Spring silkworm rearing Spring silkworm rearing is characterized by mild weather and good leaf quality. The cold weather in winter kills some pathogens, the environment is clean, and silkworm rearing is easy to obtain high-quality and high-yield. However, the temperature is often low during the young silkworm period, which does not meet the requirements of young silkworm rearing and requires heating. The probability of high temperature and sultry weather in early June is high. Therefore, spring silkworms must be raised as much as possible to achieve high-quality and high-yield; spring silkworm rearing should not be too late to avoid bad weather in the later stage; at the same time, dark fire heating should be implemented during the young silkworm period. The amount of spring silkworm rearing can be estimated by using 650~700g (buds and leaves) of mulberry per box of silkworm seeds to estimate the number of silkworm seeds that can be reared.

2. Summer silkworm rearing The characteristic of summer silkworm rearing is that the rearing period is often the plum rain season in the Jiangsu and Zhejiang silkworm areas, which easily forms a hot and humid silkworm rearing environment. Mulberry trees are mainly used for the sparse buds and leaves that grow again after summer felling, and some of the mulberry leaves that are cut in spring or the remaining leaves during the spring silkworm period are also used. The use of summer leaves combined with sparse buds and leaves is conducive to maintaining a good tree shape. Due to the high temperature and humidity, the rearing is difficult and the quality of the cocoons is poor. Therefore, summer silkworm rearing should be properly controlled. Generally, the leaves should not exceed 4 or 5 leaves at the base of the new shoots grown after summer felling. If you raise two-stage autumn silkworms or only one-stage autumn silkworms, the rearing time should be appropriately postponed.

3. Raising silkworms in early autumn

(1) The characteristics of early autumn silkworm rearing are that the natural environment is in the season with the highest temperature in the year, prone to drought and changeable. During this period, other crops are frequently treated with insect pests, which can easily cause pesticide poisoning. It is the period of the year with the worst safety for silkworm farming and the worst cocoon quality.

(2) The mulberry leaves used for early autumn silkworms are mainly the lower leaves of mulberry branches. The appropriate use of some leaves can promote the continuous growth of branches and help improve the leaf quality of mid-autumn silkworms. However, if the leaves are excessively picked, it will inhibit the normal growth of the mulberry tree, which will inevitably affect the feeding of mid-autumn silkworms and the production of spring leaves in the following year.

4. Mid-Autumn Festival Silkworm Raising The characteristic of Mid-Autumn Festival silkworm raising is that although the natural temperature begins to drop, it still exceeds the suitable temperature range for silkworm raising. Mulberry tree growth reaches its peak. If there are consecutive high temperature and drought years, the mulberry leaves will age; if early autumn silkworms are not raised, the lower leaves will turn yellow; Mid-Autumn Festival is also a season when mulberry tree diseases and insect pests are prevalent. In some years, insects need to take away leaves, so it is a period of poor leaf quality.

5. Late autumn silkworm rearing is characterized by a significant drop in temperature, especially in the late nights when the temperature is often too low; the quality of mulberry leaves is improved due to the use of the Mid-Autumn Festival, and the amount of rearing should be determined according to the situation of the remaining leaves after the Mid-Autumn Festival. Late autumn is the last period of the year. Due to the accumulation of pathogens and the large temperature changes caused by continuous silkworm rearing, silkworm diseases are often prone to occur. At least 3 or 4 mulberry leaves should be left on the branches after the leaves are harvested in late autumn to prevent the winter buds from sprouting in autumn and affecting the yield of spring leaves in the next year.

8. When should silkworms be raised?

The silkworm breeding period is generally from April to November, that is, from the time when mulberry leaves sprout and open to the time when mulberry leaves turn yellow and fall off. It takes about 40-50 days for silkworms to transform from eggs into moths, which is related to factors such as temperature, humidity, and feeding in the growing environment.