Do you know which Chinese species invaded the United States? Some species that are regarded as delicacies and treasures in the mainland, after being introduced to the United States, have begun to flood, making Americans anxious, today we will take stock of the six major invasive species that invaded the United States, see how many do you know?
Pueraria
Kudzu, kudzu in China since ancient times has had the reputation of "Asian ginseng", but in the United States has been everywhere, Americans spend 5 billion a year can not completely eliminate kudzu, can only helplessly call it a demon.
Kudzu root was first recorded in the "Shennong Materia Medica" as a legume, which was originally used by people to fight the plague, relieve heat and relieve heat, not only has a sweet and delicious taste, but also is rich in a large number of minerals such as calcium. In 1867, Americans discovered that the purple flowers from kudzu were very beautiful, so they introduced them to decorate the garden.
Later, Americans found that cattle like to eat the stems and leaves of kudzu, so they used kudzu as cattle feed for a large number of promotions, and soon Americans found that things were out of control, because the vitality of kudzu was extremely tenacious, and the climate in the United States was more suitable for kudzu growth, and in just a few years, it had been flooded in the United States.
Iron broom
Where there is kudzu, the pastures are occupied, the farmland is deserted, even the trees can not grab the nutrients and directly die, kudzu is also called an ecological killer by the Americans, listed as a harmful plant, prohibited to introduce seeds. Equally powerful as Kudzu is the Iron Broomstick, which was introduced to the United States.
Iron broom is a very strong vitality of wild plants, our rural broom is made of it, iron broom can grow to more than a meter high, young leaves can also be eaten as vegetables, in 1896, the United States in order to restore vegetation as soon as possible, choose easy to live iron broom into the domestic planting.
But it didn't take long for the iron broom to begin to grow wantonly, even the native plants of the United States were eliminated, the degree of diffusion was also very fast, seriously threatening the entire ecological chain, the Americans in order to eliminate it burned, sprayed, the method was exhausted, but also with little effect. In addition to plant invasions, there are also animals from the mainland that have invaded the United States.
carp
Asian carp. Carp on the mainland is a common delicacy on the dinner table, whether it is steamed, braised, sweet and sour or stewed soup, the taste is very delicious, usually we go to the aquatic market to buy a large carp for dozens of dollars, but in the United States, the number of these carp has become a disaster.
In 1960, in order to solve the problem of algae in the Great Lakes, the Americans followed the advice of Japan and introduced a large number of Asian carp from the mainland. Unexpectedly, these Asian carp have a strong reproductive ability, not only to deal with the problem of algae in a short period of time, but also to eat most of the fish in the United States, and the carp also eats a huge size.
carp
In response to this, the Americans built three power grids to prevent Asian carp from escaping to other waters, encouraged local residents to fish, and promised some rewards, but the flood of carp was already strong enough to snap their tails and throw people in the face, and for a time the United States could not do anything with these carp.
By 2009, the United States could not bear the situation, and put a fish vine ketone toxin into the river, but it did not kill many carp, but the native fish of the United States turned their bellies one by one.
Black tiger shrimp
Also flooding in the United States waters is also the Asian tiger shrimp, in China, because of the delicious taste of black tiger shrimp, even can sell to more than a hundred pounds, the United States also introduced black tiger shrimp for breeding after seeing it, but a storm will be black tiger shrimp from the farm into other waters, the Originally did not take seriously Americans found a few years later, black tiger shrimp has been thicker than the arm.
In order to deal with black tiger shrimp, Americans harvested a lot of fish and crushed it into feed, which was exclaimed by Chinese netizens that it was a violent creature, and Americans did not eat black tiger shrimp entirely because they did not know how to cook, so they could flood. In addition, the United States has been invaded by Chinese insects.
Black tiger shrimp
Heterochromatic ladybirds, distributed all over the continent, look very beautiful in color, but in fact, they are carnivorous insects that can help catch agricultural pests, and after the Americans found them, they introduced some ladybirds to their own country's farmland. The initial eradication of agricultural pests was really good, but within a few years, the problem arose.
Heterochromatic ladybirds not only eat pests, but even native insects in the United States are on its diet, and heterochromatic ladybirds like to fly around, and american homes often appear in their homes. If heterochromatic ladybirds only disturb the lives of Americans, then tiger-headed bees are insects that Americans smell discolored.
Heterochromatic ladybirds
Tiger head bee not only looks like a tiger, there are tiger-like markings on the body, don't look at this tiger head bee looks small and cute, but it has a terrible name "killer bee", fierce and fierce, the light poison needle is 0.3 cm long, even the beekeeper's protective clothing can be pierced.
According to statistics, a tiger head bee can easily kill forty ordinary bees in one minute, such a fierce tiger head bee is a large number of pets bred by Yunnan people on the mainland, and Yunnan people will use tiger head bees to brew wine and eat their nutrient-rich bee pupae.
Tiger bee
After the invasion of the United States, there were almost no natural enemies, and even people who were stung had to suffer a lot of sins. In 2011, after a person in France was stung by a tiger-headed bee, the venom quickly spread all over his body, and the person died before he could be taken to the hospital.
Some people in the United States also wanted to try what it was like to sting the tiger-headed bee, and he put the tiger-headed bee on his arm, and soon shouted in pain, and his arm was swollen into a pig's trotter. Therefore, I have to say that we are still great in China, and the invasive species that flood the United States can only be obediently tamed on the mainland.