Recently, the mainland's suspension of the import of pineapples from Taiwan has been making a lot of noise, and the people on both sides of the strait are paying close attention to the development of this incident. As a creator of science, I am more concerned about what happened to the mesozoite that triggered the Taiwan pineapple incident in China, and why did the small mesozoite cause the mainland to suspend the import of Taiwan pineapple?
<h1>Mesothecarpus</h1>
Those who know about agriculture know that mesquitea is an insect that widely harms fruits, flowers, and even trees, and this insect is very widely distributed, and can be seen in many places in China, so it is not surprising that mesozoans appear on Pineapples in Taiwan. However, Taiwan's pineapples need to be imported into the mainland through the inspection and quarantine of imported agricultural products, and only crops that pass the quarantine can be imported into the mainland. Of course, this is not a provision specifically for Taiwan, but a general standard, so before the Taiwan pineapple is imported into the mainland, it is necessary to deal with the problems such as the mesmer insects carried by the pineapples, so as not to be detected.
Mesophora is a gradually metamorphosed insect, one of the incompletely metamorphosed insects. To put it more, incomplete metamorphosis insects refer to the obvious differences in the size of insects in the egg stage, larval stage and adult stage, while gradually metamorphosed insects are not much different from adults, and there is a pseudo-pupa stage between nymphs and adults.
Mesozoan is a very fierce character, once found in the farmland of a mesozoite, if not prevented in time will cause widespread spread. This is because the reproductive ability of mesozoans is amazing, each time can lay 1500 to 2000 eggs, and the survival rate of eggs is very high, reaching about 90%; 1-4 generations can occur every year, in terms of 2 generations per year, 1 mesozoan can breed 90000 cubs per year.
What's more, the mesozoan can actually breed parthenogenesis, which means that if the local mesozoite number is small, there is only 1 female individual, then it can still breed a group of mesenchymal insects, feeding on the farmers' crops. From this, we can see how harmful the mesozoan is to agriculture.
Mesozoans prefer to feed on plant sap, which can cause crops to slow down their growth rate and shoots to die, so that crops will lose yields. In addition, mesophyllum can also cause plant wounds, infect other pests and diseases, such as: black spot disease, etc., hinder plant photosynthesis, can also cause crop yield reduction, and even cause crop death in severe cases.
There are many types of mesosomes, the most common of which are red roundworm, brown roundworm, Kang tablet bug, blowing sponge bug, yam tip worm, etc., and this time on the pineapple in Taiwan, China, the Pacific rump powder shell worm, the new pineapple gray powder shell worm or the sarsaparilla black round shield shell worm and other three kinds of shell worms were detected. Among them, the Pacific glucupine powdery insect is a common disease and pest of pineapple in China, while the other two species of mesenchymal insects are rarely seen in mainland China.
That is to say, if the other two species of mesozoans enter the mainland with the pineapple, then these mesozoans will spread to the wild with the contact between humans and plants, thus endangering the fruits, flowers, trees, etc. of the continent.
Although pacific glutex platycephalus exists in the mainland, but because the mainland and Taiwan are geographically far apart, they can not communicate genes, in the evolution of the two will accumulate many different genes, once they have a gene exchange, will lead to the emergence of more difficult mesozoans, then we will have to spend more cost to eliminate them.
It is precisely because of this that in order to prevent the spread of diseases and insect pests and ensure agricultural safety, the mainland of China has suspended the import of pineapples from Taiwan.
<h1>Testing of imported crops</h1>
China is a country that carries out trade cooperation with many countries, especially in terms of crops, such as: fragrant rice from Thailand, cherries from Chile, soybeans from the United States and Brazil, bananas from the Philippines, etc. However, imported crops will inevitably carry some insects or eggs, if they are allowed to flow into our country, these insects may endanger our crops, and may even cause the risk of biological invasion.
Therefore, when importing crops, we need to test the crops accordingly. Not only us, but any country or region in the world will do this, and in 2004, China's Taiwan was banned from importing American apples because of the detection of beetle moths in the Us apples for 4 degrees, so when the Chinese mainland detected 13 batches of Taiwan pineapples carrying mesmeria, in order to prevent the risk of plant epidemics from the source, in accordance with the "Agreement on the Implementation of Animal and Plant Sanitary Quarantine Measures" formulated by the WTO, the import of Taiwan pineapples was suspended, which complied with relevant laws and regulations and standards, and was scientific and reasonable.
<h1>summary</h1>
From a scientific point of view, no one wants to see pests detected from imported crops, but since things have happened, the most important thing for Taiwan to do is to solve this matter and strengthen the safety quarantine of agricultural products, rather than complaining about the mainland, let alone calling on Taiwanese to eat 18 kilograms of pineapples a day, because it is really difficult to eat 18 kilograms of pineapples every day!