When you see this kind of grass, remove it immediately!

"This kind of grass is called dolphin grass,

It is a kind of foreign invasion species,

Its harm to human health and ecological environment

They are all very large,

Must be rooted ... "

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Recently, the "law enforcement blue" of the Garden Greening Department of Shenyang City Management Comprehensive Administrative Law Enforcement Bureau held the harmfulness of foreign invasion of species to invade species of dolphin grass with the newly removed dolphin grass.

According to experts, dolphins are malignant weeds, belonging to the genus Chrysanthemum, and dolphins. It is native to North America. It is one of the world's recognized harmful plants. It is known as the "plant killer". And East China and other places.

This weed breeding is very fast. It can be transmitted through people, animals, birds, wind, and water. It is more than the roadside, fields, rivers, and wetlands. Once invading, it will quickly occupy other plants to survive.

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There are two main aspects of the harm of dolphins: on the one hand, it grows fast. It competes with other plants to fight, water, and glory. The land consumption is two or three times that of the water consumption. Essence On the other hand, its pollen can cause cough, asthma, nasal congestion, sneezing, and even urticaria, chest tightness, and emphysema, which can cause death.

There have been reports in many places. Last July, Ms. Zhang, who lived in Chengzan Town, Pulandian District, found that a plant called triangle of triangular sheets appeared in the center of the town, and some were connected in front of the house.

Peng Laohan, who lives in Xingtai Town, Pulandian District, said that the growth rate of this grass is very fast, and the ability to occupy the land is also very strong. Taking the open space around his house as an example, he found that in the previous year, he had grown up weeds such as watery artemisiamium, but since the previous year, these empty venues have been occupied by triangular dolphin grass. "Local weeds can't do it at all, and it can't be eliminated without using artificially." Peng Laohan said.

In addition, Peng Laohan said that he had cut some of these grass with a sickle, and as a result, he quickly appeared in the case of chest tightness and shortness of breath, eyes and throat, and then relieved the symptoms of medical treatment. "After that, I knew that this kind of grass 'toxic' is easy to cause allergic reactions," he said.

Netizen "Snow in Kanto" is a enthusiast in the three agricultural and rural areas. In recent years, he has been paying attention to the development of tritermia. It states that the distribution of triangular leaf dolphin grass in the rural areas of the city is even more serious.

In June last year, "Snow in Kanto" set off from Jinshan Village, passing through the Miandun, Yongli River, Yuanfa and other places, visiting the growth of the three -fractured and dolphin grass around the Wynn River to the Farmland of the Susangqiao River. Look, you can even be described as "flooding".

There are generally four methods for prevention and control of triangular and dolphin grass:

Physical Law: Artificial removal.

Chemical method: Spray chemical herbicides, but long -term use can cause drug resistance in tritinal.

Biological method: The spread of the natural enemy insects or pathogenic biology of the genus plants to control the spread of triangular leafy grass.

Plant replacement method: Competitive plants with strong competitive plants and triangular dolphin grass by artificial cultivation to inhibit its growth.

Source: CCTV News

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