American white moth! ~~

The staff carefully observed the growth process of bees. Zhou's biting bees are hatched from these silkworm chrysalis. There are thousands of bees in each test tube. The wasp stung the moth larva. Bitter Bee of Zhou Family under Microscope ■ Community Dialogue No.765438 +0 Station: Bitter Bee Breeding Center of Zhou Family in Shanghe County Time: September 2008 18 Location: Moderator of Bitter Bee Breeding Center of Zhou Family in Shanghe County: Guest of Community News Department:, Liu Qin, stationmaster of Senbao Station of Shanghe County Forestry Bureau, China Garden Network September 19 News. Because of the lack of natural enemies. Does the American white moth have natural enemies? Yes! That's Zhou's biting bee, the length is only1.5 mm. In the breeding center of Shanghe Forestry Bureau, more than 100 million bees will be released to all parts of Jinan in a week. At noon on September 18, the reporter from Life News came to Shanghe County Forestry Bureau, and led by Yan Jiahe, the stationmaster of the forest protection station, came to an inconspicuous courtyard. This small courtyard is very common, but it is the only breeding center of Zhou's biting wasp in Jinan at present. For half a year, they have been trying to control the white moth ecologically. In the laboratory, staff members Liu Qin and Jing Wong are working nervously, and more than 10,000 silkworm chrysalis are placed on supports. According to reports, there are about five or six thousand bees in each silkworm chrysalis, and these bees will exceed 654.38 billion, and they will be released in five or six days. ■ Why kill the white moth with a wasp? As a member of CPPCC Provincial Committee, Yan Jiahe, who has worked in Senbao Station for nearly 20 years, has long been extremely concerned about the American white moth and has been looking for the most effective control methods. He said that mass extinctions are usually carried out in areas where the white moth epidemic occurs. These insecticides are mainly drugs, but there are always residual moths. The drug resistance of these moths has increased, which has brought difficulties to extinction in the future. Drug extinction will also kill a large number of natural enemies of the moths. Yan Jiahe said that it is impossible to spray drugs blindly. In addition, some tall plants can't be sprayed with chemicals and must be controlled in an ecological way. Zhou's biting wasp is the best choice. How do wasps kill American white moth? It is said that Zhou's biting wasp is parasitic in the pupa of American white moth. A wasp can lay 200 eggs in the pupa of a white moth, and the parasitized moth pupa can no longer survive. "A white moth in spring can lay 400 to 1000 eggs at a time, of which 50% are female moths. In this way, autumn will be the third generation, with a total of 30 million to 200 million! Can eat 50 thousand trees! This is an explosive growth and must be controlled by very effective natural enemies. " According to the new idea, if Zhou's biting bees are multiplied in large numbers and released into the wild, a bee can lay 200 eggs in the pupa of a white moth, which is 200 times that of the American white moth in theory. If this continues for several generations, the American white moth will be completely controlled. Will the large-scale reproduction of wasps cause ecological harm? Using Zhou's bite wasp to control American white moth, will a large number of wasps form a new ecological disaster? Yan Jiahe said: Absolutely not. He said that Zhou's biting wasp is only parasitic in pests such as the American white moth, and it is only parasitic in the living body. The wasp comes out after mating in the parasite and then looks for new parasites to lay eggs. Adult wasps basically stop eating and can only survive for a few days. After controlling the number of white moths, the number of wasps will naturally decrease. ■ The reporter explored tussah pupa, glass test tube and artificial climate control room ... Zhou's biting wasp was cultivated like a baby. What does Zhou's bite wasp look like? How is it cultivated? 18 at noon, the reporter came to the breeding center of the white moth Zhou's bite wasp in Shanghe County to visit the secret of the growth of Zhou's bite wasp. Just when Zhou's biting wasp was born, she walked into an ordinary quadrangle in the dormitory of Shanghe County Committee. Pomegranate trees and mulberry trees in the yard are covered with the nets of American moths living in groups, and countless American moths greedily eat leaves. However, unlike the American white moth on the roadside tree in the city, the white moth here was deliberately put on the tree by the staff of the breeding center for only one purpose-to do experiments. When I entered the room, I obviously felt that the temperature was much colder than outside. Liu Qin He, a staff member of the breeding center, said that this is a low-temperature environment specially created for cultivating the Zhou's biting wasp. The culture center has three artificial climate control rooms and two freezers. The thermometer shows that the temperature is 26 degrees Celsius and the humidity is 70%. Hundreds of test tubes are placed layer by layer in the control room. There is a big tussah pupa in each test tube, and the mouth of the test tube is blocked with cotton. On the operator's console, thousands of bees have crawled outside the silkworm chrysalis in some test tubes, and they are densely attached to the test tube wall. Different from the special treatment of bees in test tubes, the other two rooms of about 10 square meters have Xiao Mu drawers, which are piled from the ground to the roof. There are dozens of tussah pupae in each small drawer, and there are tens of thousands more. These tussah pupae are parasitized by hundreds of millions of bees, which bear the heavy responsibility of dealing with the third generation American white moth in the provincial capital. Two amateurs became small experts. "We cross the river by feeling the stones, and study while doing experiments." Liu Qin and Jing Wong, staff members of the Breeding Center, one graduated from economics and the other from medicine. Shortly after they arrived at Shanghe Forestry Bureau, they undertook the task of cultivating Zhou's biting bees. In March and April, after studying in Binzhou for three days, under the guidance of Yan Jiahe, they set up a breeding center in the quadrangle of the county dormitory. ■ Collect and raise Zhou's biting wasp. Come and sign up: 68660096; Time: 19 am; Quota: Five Zhou's Bee Biting Breeding Centers in Shanghe County gave us more than ten tussah pupae. In a few days, five or six thousand wasps will come out of each silkworm chrysalis. We are going to entrust these bees to an enthusiastic community for foster care. Don't worry, this little bee is cute and won't sting. If you are interested, you can apply on behalf of your community. There are only five places. Registration time is 19 in the morning, and the registration telephone number is 68660096. ■ Little common sense Zhou's biting bee Zhou's biting bee can kill the American white moth by hanging it on a tree. Peristichus is a newly discovered species, native to China, but has become the natural enemy of Hyphantria cunea. Since the middle of last century, the harm of Hyphantria cunea in China has become increasingly serious, and the effect of traditional control methods has become worse and worse. From 65438 to 0998, China started the prevention and control project of American white moth, and biological control became a breakthrough. Hosted by researcher Yang Zhongqi of Chinese Academy of Forestry, after screening, a pupa parasitic wasp with high parasitism rate and large number of bees was found, which can effectively control Hyphantria cunea. In order to show his respect for his mentor, insect taxonomist San Marino and academician of China International Academy of Sciences, Yang Zhongqi named this kind of bee "Zhou's Bite of American White Moth". This wasp can find the American white moth pupating, spawning and parasitizing in various hidden places. The research results protect the ecological environment, and it is an advanced technology to control the American white moth.

High-pressure spray gun can spray drugs on the treetops of more than ten meters.

Jinan, September 19 (Reporter Chen Hongfa) The American white moth invaded the provincial capital, and the garden department entered an emergency "combat state". Yesterday afternoon, the reporter set foot on the spraying vehicle of Licheng District Garden Bureau and launched a "moth-killing war" with the staff.

Spray a big tree for ten minutes and a car full of medicine for one hour.

At about 5 pm, the reporter followed the spraying vehicle of Licheng District Garden Bureau of Jinan City to Qilihe Road. At this time, the workers on the spraying car are constantly busy, and two people are responsible for spraying tall trees and bushes respectively. To deal with the tall Fatong, workers can only stand on the spraying car and spray continuously with a high-pressure spray gun to ensure that the leaves are sprayed on both sides. For some plants in special locations, workers need to drag a water pipe more than ten meters long to spray in circles to ensure that every plant is taken care of from every angle. A tree more than ten meters high was sprayed carefully for nearly ten minutes. An hour later, a whole vehicle of drugs has been sprayed, and the reporter followed the staff back to the nearest dispensing point to replenish drugs.

On the way back, the reporter saw that a large number of dead American moth larvae fell to the ground under the tree sprayed with chemicals. When the reporter took pictures, he was drenched by a mist of medicine and smelled a faint strange smell. Spraying workers told reporters that this new medicine has a small taste, good effect and no harm to human body.

Two on-duty telephones in the office of Licheng District Bureau of Landscape Architecture

Spray "don't rest" day and night.

Xu of Licheng District Garden Bureau told reporters: At present, Licheng District has mobilized seven spraying vehicles to spray drugs day and night, and people have been nonstop. However, it is difficult to deal with Hyphantria cunea in urban areas only by the strength of the garden department, and the situation is even more serious in Ganggou, Chua's and Wangsheren in the suburbs of Jinan.

The reporter then went to the office of Licheng District Garden Bureau. At this time, the two consultation telephones kept ringing, and the staff were busy recording the insect situation in each community and making overall arrangements for vehicles to assist in pest control. Director Huang of the office told the reporter that the vehicle answering hotline has been arranged in recent days, and he is working overtime after 7 pm every day. The reporter saw that there are 63 communities waiting for spraying in the record book, and more hotline numbers are being sorted out.

Insufficient insecticidal capacity of residential property

"The work of the garden department in autumn is very heavy, such as the construction and maintenance of green plants, and the ban on burning in autumn harvest. However, in order to focus on eliminating the American white moth, we have to deploy personnel from various departments. Now that the personnel are also stretched, I can only hope that the society will mobilize more forces to join. " Director Huang said.

The reporter then came to Jinan Honglou Community according to the phone call of netizens, and found that all the paulownia leaves in the community had been eaten up by the American white moth, and the adjacent ornamental trees such as locust trees and apple trees were not spared. The staff of the residential property told the reporter helplessly that although the residential area had been sprayed with concentrated drugs, due to limited equipment, the American white moth on the tall tree continued to survive and could not be completely killed. Community residents are worried that if we do not pay close attention to control, the pest disaster will be more serious next year. (Popular Network)