Recently, many citizens have reported that there are many caterpillars in the community and on both sides of the road, which seriously affects daily travel and quality of life. Jinyun News reporters visited a number of communities and found that the walls, trees, and doors can be seen everywhere with squirming American white moth larvae, the ground is full of black insect droppings, and many trees and flower shrubs are nibbled leaves that only have petioles, and the situation should not be underestimated.
Subsequently, the reporter interviewed the relevant departments and a number of residential properties and learned that the current problem of white moth larvae in the United States has attracted attention throughout the city, and the garden department has released its natural enemy - white moth Zhou's wasp from September 27 to achieve the purpose of "treating insects with insects". At the same time, the garden department will issue pest control measures, and the competent garden units at all levels will also take measures to control the harm.
American white moth larvae infestation: affecting tree growth
The reporter came to the Four Seasons Xinyuan Community located in Chentangzhuang Street, Hexi District, the main road in the community is relatively clean, but when he walked into the building group, the walls were crawling with American white moths, and on the ground and parked vehicles, he also saw the squirming American white moth larvae from time to time. Ms. Liu, who lives in Building 37, told reporters that because of the flood of caterpillars, residents are very uncomfortable, "even the bushes at the entrance of the building are on, sometimes accidentally rubbed from the side, the skin feels painful and uncomfortable." My car was parked under a tree, and there were several mirrors crawling on it as I drove away, and sometimes caterpillars fell on my body as I walked, and I was really scared. ”
Four Seasons Xinyuan Community
In addition to affecting the normal life of citizens, the larvae of the American white moth are more lethal to the trees, and many trees and flower shrubs in the community are eaten by the leaves of the petiole, bare. Ms. Liu said the sudden increase in caterpillars had been going on for about two weeks, and she had a rough estimate that at least a third of the trees in the community had been eaten.
The larvae of the American white moth in the Vanke New Town community located in Pudong Street, Beichen District, are equally serious, not only the walls of the community are crawling with American white moth larvae, but also the bugs that suddenly appear on the doorknobs of the building are often frightening. "A few times I came home and came in the door and saw the dog licking something at home, and I used to see a caterpillar moving. Sometimes I come out of the neighborhood to get on the subway, feel the itch in my neck, touch it with my hand, and there are caterpillars crawling on the mask around my neck. Ms. Li, a resident of the community, said.
The express delivery station in the Vanke New Town community is also deeply affected, "Caterpillars crawl everywhere, on the box, on the ground, on the body, it is really annoying." A staff member said.
In addition to the community, there are also cases of American white moth infestation with larvae in some communities and on both sides of the road. According to Mr. Zhu, a resident of GejingQi Garden in Hexi District, a large number of American white moth larvae have recently appeared around the community, which has seriously affected the lives and ecological environment of surrounding residents. Stepping out of the Metro Line 9 Steel Pipe Company Station, the wall on the side of Jintang Road is also crawling with American white moth larvae.
Residential property: Has been taking medicine, but the effect is not obvious
Ms. Liu, who lives in the Four Seasons Xinyuan Community, said that she has reflected the situation many times, and the relevant forestry departments have also replied, "The staff said that they received complaints from many residents in our community, but the medicine work in the community is the property responsible, and they have repeatedly urged the property to spray medicine as soon as possible, and the style of medicine has been given to the property." ”
Walking into the office of the property service center of Four Seasons Xinyuan, you can see the "enemy killing" insecticide on the table, and a staff member said that these drugs are aimed at the American white moth larvae, "We have finished the stored medicines, this is a newly bought batch, and the community is gradually sprayed according to the building." But because there are no natural enemies, these drugs have limited effect. The staff said they will continue to spray, targeting severe areas, and will also spray repeatedly to address the harm of the American white moth larvae.
The staff of Vanke New Town Community Property told Jinyun News that it will carry out a two-day concentrated, large-scale, dead-end spraying activity on September 29 and 30 to eliminate the American white moth larvae in the community. I had been taking medicine before, but because it rained frequently, the effect of the medicine soon disappeared, and the effect was not good. After playing tomorrow, it will definitely work within 24 hours. ”
And Mr. Zhu reflected that there are a large number of American white moths around the Geqiyuan community, and the Haihe Construction Company, which is responsible for developing this area, replied: The problem has been found in daily inspections, and then the construction unit was organized to start a special pest control action in the new Badali area in early September, and has completed three sprays to kill insects so far. After inspection, except for a few trees in Jiajiang Road, which still have residual insect pests, other areas have been effectively treated. But the reporter walked on the road outside the community and still found the larvae of the American white moth that were squirming from time to time.
In order to kill insects, the garden department issued a guiding opinion "support"
The reporter learned from the interview that due to the increase in the frequency of rainfall in Tianjin this year and the large amount of rainfall, the insect infestation of garden trees has been caused, and the harm of the American white moth is more serious. According to the plant protection center on the municipal jurisdiction of the main and secondary trunk road trees of the third generation of American white moth occurrence, statistical insect plant rate summary shows that the number of three generations of white moth screens in the city compared with the first and second generations significantly increased, compared with previous years also increased, some sections of the insect plant rate in about 50%, some even as high as 80%.
The American white moth is an important pest in the city's gardens, endangering a variety of major garden plants, three generations a year, of which the third generation is from the end of August to the beginning of October, which is the most harmful throughout the year, the damage time is long, the spread speed is fast, and it is easy to cause a large outbreak. If three generations of American white moth larvae are not killed as soon as possible and the number of pupae overwintering is reduced, the following year will be even more harmful.
In this regard, the Tianjin Urban Landscaping Service Center issued the "Emergency Guidance on Strengthening the Prevention and Control of the Three Generations of American White Moths" on September 15, which put forward six requirements in the guiding opinions, including "strengthening the work of cutting the net curtain, immediately spraying prevention, focusing on the prevention and control of residential areas, preparing for pupal prevention and control and releasing natural enemies".
As of September 26, according to the survey of the Plant Protection Research Office of the Municipal Urban Landscaping Service Center, the occurrence of the american white moth in Tianjin is serious, and the prevention and control of the main trunk roads in various districts is basically better, but the phenomenon of trees eating up in some secondary sections and remote sections is frequent, "The leaves of trees and flower shrubs that are eaten by the trees only have petioles, and the ground is full of black insect feces." The older larvae have broken the net to disperse the damage, and the old mature larvae climb to the cracks in the trunk or the wall, and spread in an all-round way to find a pupae place, which not only seriously affects the normal growth of the tree, but also affects the normal life of the residents. ”
In response to this, on September 27, the Tianjin organization released the natural enemy of the American white moth: the white moth Zhou's small bee, to achieve the purpose of "treating insects with insects". The competent garden units at all levels have also carried out prevention and control arrangements such as strengthening the cutting of the net curtain, the prevention and control of carpet spraying, and the full coverage of joint prevention and joint treatment.
Citizens said that they are full of expectations for the results of prevention and control and hope to control it as soon as possible.