Large Silkworm Cocoons Of Spring Silkworm &Nbsp In Danyang, Jiangsu Were Identified.

In recent days, many silkworm farmers' faces in Danyang, Jiangsu are full of melancholy. After hard work, they should have been harvested. However, many silkworms fed their own silkworms do not cocoon.

In view of the phenomenon that Danyang silkworms did not cocoon in June 8th, the sericulture Research Institute of Chinese Academy of Agricultural Sciences initially identified: toxic substances poisoning.

The average cocoon yield is about 50%, and the economic losses of silkworm farmers are serious.

Beginning in the middle and May of May, silkworm farmers in Danyang fed silkworms.

According to past experience, from

In early June, it should be time for silkworms to spin cocoons, but the silkworms fed by silkworm farmers in the towns such as Cao Tang Village, visiting Xian town and ER Ling town in Ling Kou Town of Danyang city can see that cocoons and selling silkworms are shrinking, dying and dying.

According to the survey conducted by the Danyang Municipal Commission of agriculture, more than 2000 Zhang Chuncan in Danyang did not produce cocoons and silkworms at 20-90%. The average number of silkworms was 50-60%, and some silkworm farmers even lost their crops, which caused serious losses to sericulture production in Danyang.

Danyang City sericultural technology guidance station responsible person said, spring silkworm appeared large area serious cocoon phenomenon, in Danyang and Jiangsu province has no historical record.

In the morning of June 8th, the reporter walked into Shen Suofu and Shen Shunlong's family of silkworm in Shenjia village, er Ling Town, Danyang. Only a few cocoons were seen in the silkworm chamber of the two families.

Shen Suofu, who is picking cocoons and cleaning silkworm eggs, said that silkworms had always been the best to raise, and two days later they were white silk flowers, but this year's silkworms were unable to "spin", "paralyze" or crawl all over the floor.

"4 half spring silkworms raised by my family this year, the cocoon yield is at most 30%.

We have been raising silkworms for more than 40 years, and have never met this year's situation. "

Shen Suofu said that in this year of drought, mulberry leaves are not afraid of drought. Because of the application of a fertilizer, mulberry leaves grow very well. I hope this year's price reduction will increase some income, and it will result in a loss of over 5000 yuan.

There are nearly 100 silkworm farmers in the gate village of Cao Tang and its surrounding areas in Ling Kou Town, Danyang.

Huang Zhengfa, a more than 70 year old villager, said that before the spring silkworm ripening, he could hardly see anything unusual, but he never dreamt that he would not vomit for three days.

Spring silkworms do not cocoon, so that some large silkworms are miserable.

Qian Rusong, a villager in the village of Wa Xi, a visiting town in Danyang, told reporters heartache that his family had raised 16 silkworms this year. If there is no accident, a cocoon that can weigh 60 kilograms, according to this year's 38-40 yuan per kilogram, he expects to earn nearly 40 thousand yuan this year.

However, in the face of a large number of silkworms not cocoon their cocoons, their families began to manage mulberry trees for half a year in vain, but they lost more than 30 thousand yuan by buying artificial fertilizers and so on.

Sericultural cooperatives are more worried about appealed to boost sericulture and sericulture confidence

On the afternoon of June 8th, when the reporter interviewed Huang Linzhong, a local sericulture farmer, who sold a small bag of cocoons to the cooperative, he said, "I raised two spring silkworms last year, sold more than 190 kg of cocoons, and an average of more than 90 catties per silkworm. But this year, a silkworm has only been taken to 15 kg of cocoons!"

"When spring cocoons were bought, members of cooperatives and sericultural farmers such as visiting fairy, er Ling, Lu Cheng and other towns in Danyang were queuing up for sale, but this year, this situation is beyond expectation."

Huang Jinzhu, President of the new sericulture professional cooperative in Ling Kou Town, Danyang, told reporters: "last spring cocoon purchase price was 14-15 yuan per catty. This year rose to 20 yuan per catty. Under normal circumstances, a spring silkworm can yield more than 2000 yuan.

Danyang's more than 400 sericultural households, in the two season of spring and autumn, raise silkworms. They can sell thirty thousand or forty thousand kilograms of cocoons a year, and at present, the cooperative only purchases 1500 kilograms of silkworm cocoons, and the damage of silkworm farmers is too great! "

The gold pillar told reporters without worry, "the number of cocoons collected from cooperatives is small, and the loss of sericultural interests is a very important event."

Huang Jinzhu said that in the past few years, the market price of cocoon has been rising and falling.

Facing the economic losses of large quantities of silkworm farmers, the gold pillar hopes that relevant departments will do their best to help the affected farmers to tide over difficulties and do everything possible to help sericulture farmers restore their confidence in raising silkworms.

Mulberry leaf pollution is the main cause of drought without rain.

This year, the phenomenon of "no more cocoons" on the top of Danyang has attracted the attention of the leaders of the Danyang municipal government and the Danyang Municipal Committee of agriculture. The silkworm technical guidance station has been rapidly observed in the silkworm farms, and has been investigated and analyzed.

In view of the silkworm problem raised by some silkworm farmers in June 8th, silkworm cocoon samples from the silkworm technology guidance Station in Danyang were sent to the sericultural Institute of Chinese Academy of Agricultural Sciences for identification and testing. After pathogeny examination, there were no pathogens found in the sample silkworms, such as spores, virus polyhedra, bacteria and fungi. The silk glands in the middle part of silkworms were slightly smaller than those in the normal silkworms. Through comprehensive analysis of the growth of silkworms in silkworms, the use of pesticides in mulberry and surrounding crops and the climate in the silkworm period, it was preliminarily identified that the main cause of silkworm cocoon production was toxic substances poisoning.

Zhuang Ying, director of Danyang silkworm technical guidance station, introduced two main reasons for poisoning of silkworm poisoned this spring: first, this spring suffered 50 years of natural drought, so that during the whole spring silkworm breeding and breeding period, there was no continuous heavy rainfall process. Because there was no scour and wash of heavy rainstorms, air pollution and pollution of dust accumulated on mulberry leaf by Peasanda Osa were not effectively purified.

Zhuang Ying said that although there was a artificial rainfall in the western township of Danyang in mid April, due to the uneven distribution of rainfall, only a few silkworm farmers in the area had a relatively small impact, and only about 80 kg of cocoons per individual silkworm farmer.

The two is that the silkworm is a long-term domesticated insect, and the ability to resist the disease and resistance to the disease is very weak. At the same time, the silkworm period also appears the climate of the development of the silkworm and the silkworm.

Due to the superposition of the above factors, mulberry leaves are contaminated by mulberry leaves for a long time, resulting in uneven development of silkworms, weak silkworms, difficulty in feeding, slow cocoon production, and no cocoons and silkworms.