Eight of the invasive plants, including water hyacinth, water peanut, purple stem zephyr, rice grass and Mikania micrantha, have brought serious harm to agriculture and forestry, while the most harmful pests include 14 species, including the American white moth, pine wood nematode and potato beetle. The 16 harmful exotic species announced by SEPA are: purple stem zephyr, Mikania micrantha, hollow lotus grass, ragweed, poisonous wheat, mutualistic ricegrass, plane grass, phoebe (water hyacinth), false sorghum, cane flatworm moths, wetland pine mealybugs, the mighty codling moth, the American white moth, the African giant snail, fusulinid snails, and bullfrogs. /view/39004.htm?fr=ala0 Baidu under a lot of. Bichhornia crassipes (Bichhornia crassipes is commonly known as "water hyacinth" by the Chinese), which has been described as a "purple devil", has been breeding rampantly in waters all over the world, which is one of the most typical examples of invasive alien species. In 1884, native to Venezuela, South America, the wind-eye lotus was sent to the United States in New Orleans on the Fair, from all over the world to see its flowers are very colorful, it will be as an ornamental plant to bring back to their respective countries, unaware of the strong ability to reproduce the lotus has since become the number one harmful plant of the countries hurt. In Africa, Anemone all over the Nile River; in Thailand, Anemone all over the Chao Phraya River; and the southern United States along the Gulf of Mexico inland rivers and waterways, but also by dense layers of Anemone blocked the water, not only leading to the passage of the boat, but also lead to the extinction of the fish and shrimp, the river stinks; and China's Yunnan Pond, Yunnan, has been because of the crazy spread of water hyacinth was accused of experts suffering from "ecological cancer". Cancer". Author: Shangguan Yi Yi 0 fans 2007-12-30 15:30 Reply to this statement 4 Re: Biological invaders ...... information Case (2) In addition, Australia's "rabbit plague", the Mediterranean Sea's "poisonous algae In addition, the "rabbit plague" in Australia, the "toxic algae" in the Mediterranean, the "zebra mussels" in the Great Lakes of the United States, the "frogs" in Hawaii, and the "stemmed zeylan" that has invaded our country, "rice grass", "pine wood nematode", "Canada's one flower", "crayfish", "American white moth", and so on, there are countless examples of invasive alien species. Due to the lack of natural enemies, these invaders not only destroy the food chain and threaten the survival of other organisms, but also bring huge economic losses to the world. According to the International Union for Conservation of Natural Resources (IUCN), the global economic loss caused by invasive alien species exceeds 400 billion dollars per year. Fujian Province Relies on Science and Technology to Fight Biological Invasions Date: 2009-12-11 Author: Source: China Environment News, Page 8 Copy Link According to a report by China Guanghan Net, Fujian Province, which is located in the frontline of biological invasions, has been using effective scientific research in recent years to stop the proliferation of exotic and harmful species, and has received certain results. The orange fruit fly is a worldwide fruit killer, seriously harming more than 250 kinds of fruit trees and vegetables, and the country loses tens of billions of yuan every year as a result. Through research, experts in Fujian Province, found a biological method to deal with the orange fly. The staff first captured male orange fruit flies and irradiated them with a certain amount of cobalt 60 rays to make them lose their fertility. The staff then released the flies back into nature. This way the females and males will not have children after mating. Native to Brazil, hollow lotus grass is found all over field ridges, rivers and vegetable fields, competing with crops for water and fertilizer and becoming a vicious weed. Fujian Provincial Academy of Agricultural Sciences to specialize in eating hollow lotus grass lotus grass straight chest flea beetles, effectively curbed this pest grass on the ecological infringement. In order to avoid the water hyacinth flooding, fujian agricultural science and technology personnel after research, found a spray mixture of herbicides in addition to water hyacinth way. A new method developed by the Fujian Academy of Agricultural Sciences is expected to make water hyacinth a water purifier for rivers. Rice grass in the mudflat crazy growth, occupation of mudflats, resulting in fish, shellfish, algae and a large number of biological loss of growth and reproduction sites, known as "mudflat killer". Only the eastern part of Fujian, the annual direct economic losses caused by the fisheries industry amounted to more than 464 million yuan. The reporter learned that the Fujian Agriculture and Forestry University, the Academy of Agricultural Sciences and other units have also found a way to deal with the growth of rice grass, rice grass can be rotted in the mud, into the sea mud.