Snails for the majority of farmers is a pest, it mainly feeds on crops, seriously can cause crop yield reduction, some snails may also cause children with meningitis, so for snails China has been strictly prohibited from entering.
Recently, when the Beijing Post Office Customs conducted X-ray machine inspection of incoming mail from key countries, it found that the machine-checked image of a certain mail was suspected of shellfish or mollusks, and the product name was not declared as required.
A total of 29 live snails were seized after unpacking. After identification, the batch of living organisms is a large cover snail, which is also the first time that Beijing Customs has intercepted a live cover large snail.
<h1 class="pgc-h-arrow-right" >what is a cap-and-cover large snail? </h1>
The large cover snail is actually a grape snail, mainly found in the grape plantation, according to its name, the snail's diet and grapes have a very strong relationship, mainly based on the stems, leaves, buds, and fruits of the grapes as food. It belongs to the family Macronasaceae, and because of its similar shape to apples, it is also called apple snails.
The large cover snail is mainly distributed in some countries in Western Europe and Eastern Europe, such as France, Austria, Belgium, Italy and other countries, which have common characteristics, rich vineyards, and wines are also famous. The cap-and-covered snail species are not Chinese species and are invasive species.
The living environment of the covered large snail actually has a very high standard, such as the temperature of the environment, air humidity, light, soil and so on. Usually, the living temperature is 20 to 28 degrees Celsius, the humidity is 85% to 90% of the environment, afraid of strong light, most of the time in the wet soil.
According to statistics, the habitat of the covered large snail is relatively hidden, such as in the soil, in the crevices of the rocks, in small caves, etc. are the best habitats for the covered large snails, and the main reason is that the air circulation in these locations is relatively cool and humid, and there is no light.
The living habits of the covered large snails, usually, during the day they all choose to rest in their habitat and come out at night to forage, according to the agricultural department, the covered large snails mainly go out at 23:00 at night to forage.
This is the first time that Beijing Customs has seized a large snail with a cover, but in fact, there are cases of large snails with covered snails seized in Qingdao Customs.
< h1 class="pgc-h-arrow-right" > the threat of large snail entry? </h1>
The biggest threat to the entry of the covered snail is actually the vineyard and citrus fruit trees as the host, and the fruits, stems, leaves and buds of this type of fruit tree are mainly fed on a daily basis. There are also other host tree seedlings, vegetables and flowers, etc., which directly eat these hosts until death.
It is understood that the damage of the cover large snail to the soybean seedlings is very large, the main soybean seedlings in the early stage, the cover large snails feed on it, the light leaf damage, seriously causing some soybean seedlings can not germinate into seedlings, resulting in a state of no seedlings. Therefore, in the field where cash crops are grown, it is very important to prevent the invasion of the covered large snail.
The covered snail is actually a very dangerous creature, eating an amazing amount and being very gluttonous, not only for agriculture or cash crops, but also for more than 100 kinds of herbs, woody and vines, all of which are at risk of harm.
And the breeding rate of the covered large snail is amazing, and once it enters, it will open a large-scale spread, making it more difficult to control. Therefore, it is very important for Chinese customs to keep it out of the country. Why do people, knowing that it is a dangerous creature, still mail it to China?
<h1 class="pgc-h-arrow-right" > mailing harmful organisms into China, what is the purpose? </h1>
In recent years, China's economy has made great achievements and become more and more important in the international arena, and many Western countries are very "unhappy" with China's rapid rise. Taking advantage of various opportunities to mail unidentified organisms into China, they want to destroy the Chinese economy through biological invasion.
In a sense, it's a kind of biological warfare. Invasive alien species, not naturally evolved organisms, invasive species belong to the ecological circle of invasive species, when they enter the country has no natural enemies, in China will spread in a large area, resulting in a sharp decline in cash crops or crops, the original ecological circle of organisms disappeared, serious damage to the ecology.
And naturally evolved organisms, which are an important part of the ecosystem, are a balanced system naturally formed through the survival of the fittest in nature, relatively stable, even if the destruction of crops, are related natural enemies to contain them in a safe range.
Therefore, China Customs has taken key care and strict inspection of some "key countries" and inbound parcels, and strictly prohibits any harmful biological entry to bring threats to China's ecology. Praise for China Customs.