In recent days
Many netizens reflected
Appeared on the streets of Xuchang
Worms like "white dust"
This "little white worm" is flying everywhere
It often sticks to hair and clothes
Also the entrance is confusing, which is very annoying
However, this "little white worm"
There is no direct harm to the human body
Sensitive groups such as the elderly and young children
You can wear a mask or other ways
A little protection, no need to panic
What is a "little white worm"?
It is understood that this small white insect is scientifically called whitefly, and from August to October of each year is the high incidence period of whitefly, and the host range of whitefly is very wide, including vegetables, crops, flowers, weeds, trees, fruit trees and other more than 600 kinds of plants. Adults and larvae absorb plant sap, make the leaves fade, yellow, wilt, secrete a large amount of honeydew, contaminate fruits and leaves, cause plant growth to weaken or even wither and die, and can also spread certain plant viruses.
Why do "little white worms" appear?
How to prevent it?
☟
Causes of whitefly macroses are:
◆ The source base of overwintering insects is large and its amazing reproductive ability, and there are many generations and overlapping generations;
◆ The ecological environment is favorable and the transmission channels are wide;
◆ Miscellaneous food, wide range of hosts;
◆ The emergence of new and more harmful whitefly biotypes, and the spread of agricultural products, seedlings and plant packaging to our city;
The widespread use of synthetic organic insecticides has led to the development of pest resistance and the destruction of natural enemies.
Why do whiteflies appear in urban areas?
Agricultural experts in many places generally believe that mainly due to the "WenDao effect" of the city and the harvest of field crops, whitefly began to migrate to the green trees and flowers of the city.
How to control "small white worms"?
In order to timely and effectively control the spread of whitefly and eliminate the whitefly infestation as soon as possible, the Xuchang Landscaping Center has issued a special notice to guide the districts to carry out pest control. In the Weidu District Party Building Theme Park reporter saw that the workers of the district's landscaping center were spraying the green plants in the park with drugs to eliminate the whitefly hidden in these plants. On Yongxing Road, a demonstration area for urban-rural integration, the garden department of the district also organized fog cannon trucks and small medicine trucks to administer medicine to the trees on both sides of the road to ensure that diseases and insect pests are effectively prevented.
Other than that
As the temperature drops, the weather turns colder
Whitefly breeding and growth will be curbed
The amount of insects will be significantly reduced
Outdoor whitefly will gradually disappear