What medicine does the leaf curler insect on the mulberry tree use to eat it without hurting the sil

Common insect pests of mulberry trees include mulberry beetle, mulberry caterpillar, and mulberry weevil; Diseases of mulberry trees include mulberry plaster disease and scale insects.

Mulberry pest management and control methods:

1. Before the mulberry pest stings, the dead stump is sawed off, the weak branches are pruned, and the mulberry garden is burned.

2. Spring plowing and weeding, and remove unreasonable crops in the garden.

3. For fields that have not been fertilized, fast-acting nitrogen fertilizer should be applied before mid-April.

4. Renovate the ditch system to ensure that it can be irrigated and drained.

5. For mulberry trees with plaster disease and scale insects, first wipe out the adult scale insects, scrape off the protective layer of the plaster disease, and then spray with laundry detergent (preparation ratio: 1 kg of laundry detergent and 5 kg of water).

Mulberry pest control methods:

1. Spray 3500 times of 90% mettocarb wettable powder on all mulberry gardens before April 20, with a safety interval of 12 days.

2. Pesticide varieties with reliable quality should be selected, and organophosphorus pesticides should not be used in 71-1 varieties of mulberry to prevent the induction of stalk-type bacterial diseases. The spraying should be comprehensive, so that the branches up and down, especially the mulberry fist, should be sprayed wet and sprayed thoroughly.

3. In the fields where there are more mulberry thrips, 40% dimethoate emulsifiable concentrate can be added to the solution.

4. The mulberry tree with mulberry blight should be cut off in time to remove the diseased branches and leaves, burned in a centralized manner, and used mulberry blight inhibitors to prevent and control it, once a week, 2 or 3 times in a row.

4. If it is found that there is a mulberry beetle that harms the mulberry tree, inject 50 times the liquid of 80 dichlorvos emulsifiable concentrate into the cavity, kill the larvae of the mulberry beetle, and do not use other pesticides to inject the cavity at will, so as to prevent the drug residue from affecting the safety of silkworms.

In the early stage of the disease after summer, after pruning the diseased branches and leaves, 300 500 units of oxytetracycline hydrochloride solution or 100 units of agricultural streptomycin solution were selected, and sprayed once in 7 10 days, sprayed 2 3 times in a row, which had a good control effect; It can also be sprayed once every 3 days (50 grams of copper sulfate plus 12% ammonia 400 450 ml, plus 50 kg of water), sprayed once every 2 3 days, and sprayed 2 times in a row, which has a preventive effect. In acidic soil areas, lime nitrogen is applied to the soil at the beginning of winter or early spring before mulberry germination, and 25 30kg per mu can kill overwintering bacteria in the soil.

Most pesticides are absorbed into the plant after spraying, and cannot be washed off with water. Therefore, the mulberry leaves that have been sprayed cannot be fed to the silkworm babies during the pesticide interval.

The Ming Dynasty poet Gao Qi once mentioned in "Silkworm Raising Words": Sanmian silkworms eat many leaves, and the mulberry trees are empty. In other words, after the silkworm molts for the third time, the amount of food increases greatly, and it can eat several mulberry leaves in a day.

According to people who have many years of experience in raising silkworms, a silkworm generally eats kilograms of mulberry leaves in its lifetime.

It's not easy to find enough mulberry leaves in the city now. The proprietress said that she planted mulberry trees at home, but she didn't need to worry about how many mulberry leaves. can be replaced by ordinary people, it is really "hard to find".

Even if there are mulberry trees in the community, most of them will spray pesticides to prevent pests and diseases, which is not suitable for consumption.

I went to search on the Internet, and there are really people who are selling fresh mulberry leaves for 20 yuan per kilogram, which is not the most expensive.

Are there anything else silkworms can eat besides mulberry leaves? It was mentioned in the "Compendium of Agricultural Mulberry" that "lettuce can also feed silkworms". This is undoubtedly good news, lettuce in the vegetable market is not difficult to find, and lettuce leaves, many people do not enter the vegetable, rather than throwing away, you might as well use it to improve the food for silkworms.

Extended Materials. Silkworm (scientific name: bombyx mori) is a lepidopteran insect, the main raw material of silk**, which occupies an important position in human economic life and cultural history. Native to China, South China and Taiwan, commonly known as silkworm babies or mothers.

The silkworm is called "silkworm" (meaning "silkworm") because it uses silk to weave cocoons. The cocoon is woven from a single piece of silk 300-900 meters long. Nowadays, China's cocoon silk production and export volume account for more than 70% of the world's total, and has become a major cocoon silk country that can dominate the world's cocoon silk trend.

It must be fed at the age of one, it is best to cut it into cubes when it is tender, and it is best to ask three to three to five slices when it is two to three years old.

Just start bai2 3 tablets, be a little more tender.

du mulberry leaves, preferably on the top zhi

Tear the mulberry leaves a little bit and give it to the silkworms to eat. Clean the mulberry leaves in a timely manner.

Slowly, when the silkworm grows up, you can choose the mulberry leaf in the middle, feed 3 or 4 mulberry leaves, tear it a little smaller, and give it to the silkworm to eat. Clean the mulberry leaves on time.

When the silkworm baby grows very big, you can first use the bottom of the old mulberry leaves, 5 or 7 mulberry leaves, without tearing them apart, directly to the silkworms. Clean the mulberry leaves on time.

Is it one coming or a lot. But. Silkworms are born with different origins, and they must be bai

Eating mulberry leaves, so far for du, silkworms can eat no less than 20 kinds of leaves, such as dandao gongxin, elm leaves, lettuce leaves, lettuce leaves, etc., but silkworms love to eat mulberry leaves, this is because silkworms feed on mulberry leaves for the longest time, generation after generation on mulberry trees, gradually formed the most accustomed to eating mulberry leaves, but also became hereditary. A silkworm eats about 20-25g of mulberry leaves in its lifetime, basically they are not sleeping, and they are eating when they are excreting.

The larvae (silkworms) are newly hatched copy silkworms, black hairy bai, much like ants, called ant silkworm du. As soon as the ant silkworm comes out of the shell, it will eat mulberry leaves, eat it day and night, stop eating after 4 or 5 days, and enter the sleep period. After a day or so, after shedding a layer of skin, I start to eat mulberry leaves again.

It takes 27 to 30 days from the ant silkworm to the silk cocoon, there are four dormant periods, four molts, and each molt grows a little more. The interval between each molt is called "instar", and the silkworm that molts four times is the fifth instar. The fifth-instar silkworm eats mulberry leaves for about seven days, and the silkworm body becomes transparent and begins to spin silk as a cocoon.

The transparent thing of the silkworm body towel is the raw material for making silk, which is called silk fibroin and sericin. After silk fibroin and sericin are spit out by silkworms, they turn into filaments when they encounter air. A silkworm spits silk about 1,500 meters long.

Won't bite.

silkworms, which are divided into two categories; A type of silkworm, that is, mulberry silkworms. It feeds mainly on mulberry leaves. The other type is called mountain silkworms, that is, quercus silkworms, which feed on oak leaves.

Silkworms go through 4 stages in their life: eggs, larvae, pupa and moths. It is the larva of silkworm moth, the main raw material of silk products, and has an important position in human economic life and cultural history.

Native to southern China, ancient texts record that the Yellow Emperor Xuanyuan began to raise silkworms, and the most famous in Jiangnan is the well-known Yellow Emperor's wife ancestor. The staple food of mulberry silkworms is mulberry leaves, which can also be supplemented with a small amount of castor leaves. The cocoon is woven from a continuous silk with a length of about 300,900 metres (1,000,300 ft).

The adults and pupae of silkworms are edible and have therapeutic effects.

Silkworm babies feed on mulberry leaves, and silkworms are also known as mulberry silkworms! China has a long history of silkworm raising, and it has begun to raise silkworms as early as four or five thousand years ago.