Liaoning: Woodlouse Bite Silkworm, Zhuanghe Autumn Tussah Yields Half

Tussah production and processing is a major traditional characteristic industry in Zhuanghe. However, the industry is now facing a fatal blow. This autumn's overflowing woodlouse has eaten countless. autumn-bred silkworms 。 To this end, the sericultural farmers suffered huge losses. Preliminary statistics show that at least half of this year's autumn silkworm production in Zhuanghe is reduced.

Silkworm farmers catch hundreds of woodlouse every day.

Lao Zhang, a Longtan Village in Zhuanghe, is more than 50 years old. Last autumn, he collected nearly 5000 Jin of cocoons, and the selling price was 15 yuan per catty, and the cost of cleaning up was nearly seventy thousand yuan. This autumn, Lao Zhang put the same number of silkworms, "can also receive five hundred or six hundred jin, reduce production to 1/10, not to mention, the price is cheaper than last year, at present a catty of 12 to 3 yuan, go to the cost, basically can not leave anything." "It's all made by woodlouse." Lao Zhang said that woodlouse is an insect that can fly and eats silkworms very much. "Every year, but not in the past year." Lao Zhang said that although he did his best to catch up with woodlouse this year, he failed in the end. "Too many people can catch six hundred or seven hundred people a day. Sometimes there are dozens of trees on the tree. The first day is almost the same. On the second day, there is another tree.

In this regard, Gong Xingyuan, a senior agronomist of Zhuanghe sericulture, said that the number of woodlouse this year is indeed more than that of previous years.

Cocoon production is only half that of last year.

According to Gong Xingyuan, Zhuanghe is the four largest province in Liaoning province. Tussah One of the producing areas is 870 thousand acres of silkworm farm and more than 10 thousand silkworms, which are distributed in 16 townships in Zhuanghe. Because Zhuanghe's Oak varieties are good, and the temperature difference between day and night is small, both silkworm chrysalis and raw silk are of high quality. Last year, the output of cocoons in Zhuanghe was 7000 tons. However, the flood of woodlouse this year has brought great losses to the silkworm farmers. "The silkworm farms in 16 villages and towns have been spared, and the output is half of last year."

Reporters learned that in recent years, Zhuanghe woodlouse endangering tussah is increasing year by year, in 2009 and 2010, the rate of damage reached 100%, some silkworms due to the harm of woodlouse cause autumn silkworm harvest.

Gong Xingyuan said that woodlouse's scientific name walking armor is the main pest that damages the autumn tussah silkworm. It has a special characteristic, even if it is full, it will kill the live silkworms nearby. But for agriculture and forestry, woodlouse is a good insect. It eats insects and can protect trees and crops.

Woodlouse's wrath is related to the neglect of silkworm farmers.

Gong Xingyuan said that in the past, the occurrence of woodlouse was regular, and there was a big annual occurrence every three years. "Now almost every year is a big year." Gong Xingyuan said that in recent years, the Zhuanghe area has been implementing the policy of closing the mountains and banning the grazing, which greatly reduced the destruction of forest and vegetation by people and livestock. This provides a refuge for woodlouse to overwinter, which is one of the reasons for the increasing number of woodlouse.

It is understood that this year, the woodlouse area in Zhuanghe is also related to the neglect of silkworm farmers. Gong Xingyuan said, at present, woodlouse's prevention and treatment methods are mainly two, one is drug control, the two is artificial killing. However, some sericultural farmers hold a fluke mentality and think that, as in previous years, the problem can be solved by manual arrest. "Woodlouse has wings and can fly 1500 meters at a time." Gong Xingyuan said that in this case, if some sericultural farmers fight drugs, some farmers will not fight. Silkworm farmers In vain. Gong Xingyuan said that the harm of woodlouse increased year by year, and hoped that silkworm farmers could learn lessons and make good efforts to prevent and control woodlouse in the coming year.