Longge was invented by the Japanese Pesticide Company (called Corporation) and obtained a patent. At that time, its detection code was NNI-000 1, commonly known as fipronil. At the time of registration, it was changed to fipronil, and the trade name was Longge. The process of Longge's invention is roughly as follows: Earlier, a Japanese doctor named Tsuda discovered a compound that can kill bacteria and weeds. Later, Japan Pesticide Co., Ltd. studied this compound and inadvertently invented a brand-new compound called o-phenylenediamine, which has a brand-new mechanism of action on pests. After this result was made public, many large companies in the world, such as Bayer and DuPont, invested a lot of manpower and material resources to study, improve and optimize their structure in order to launch a commercial product. Through hard work, Japanese pesticides and Bayer company are better. They finally invented fipronil at 1998. So now we say that fipronil was jointly developed by Bayer and Japanese pesticides. Longge obtained the pesticide registration certificate of China in 2008. 0cGO* G2Xr
Now people often ask, which is more active, Brother Long or Kang Kuan? Longge is fipronil and Kangkuan is chlorantraniliprole. Among all chemical structural formulas, the total activity of fluoride ion is the highest. Why did Bayer introduce fipronil instead of bromothalonil? The reason is that fipronil has the highest activity and the best effect in the same series. According to this reasoning, it seems that Brother Long is more active than Kang Kuan. But I tell you, Long song is as active as Kang Kuan. The reason is that Kang Kuan and Brother Long are not the same substance. Although they have the same insecticidal mechanism and similar structure, they are not the same kind of substances. Kangkuan is called chlorantraniliprole, which belongs to o-formylaminobenzamide pesticide, and Longge is called flubendiamide, which belongs to phthalamide pesticide. A brief review of Kang Kuan's invention process may be more impressive. As mentioned above, in the competition of phthalamide research, Japanese pesticides won the first game and launched the first commercial product fipronil. Almost at the same time, DuPont also invented similar substances, but Japanese pesticides have been patented, and DuPont has no choice but to make persistent efforts. Dupont Company, with fipronil as the forerunner, carried out great transformation on this kind of compound, changed the structure of the compound, and got a new compound called o-formylaminobenzamide. Then it made a lot of improvement, optimization and screening in this new compound, and finally invented the first commercial product Kangkuan in 2000. Therefore, Kangkuan is actually an improved substitute product of Longge, and its nature and effect are equivalent to that of Longge. AGY
Some people also asked, since longge contains fluoride ions, it is a fluorine-containing substance, so how toxic is it to beneficial insects such as bees and aquatic organisms such as fish? We know that general fluorine-containing substances have high activity, but pesticides containing fluorine ions are generally very toxic to aquatic organisms and beneficial insects, such as hexaflumuron, such as fipronil (which is also the reason why fipronil is banned). Fortunately, longge has low toxicity to bees and carp (the representative of aquatic organisms). No activity (almost non-toxic) to beneficial insects at general dose. This is good news, which is conducive to the promotion of Longge in rice and other crops and avoids the tragic fate similar to fipronil. U3 UKu/ Z
Will Brother Long become a hot spot this year? Brother Long's effect is beyond doubt. It has good activity on almost all LEPIDOPTERA pests, not only on adults and larvae, but also with fast action speed and long duration. The effect on rice stem borer and leaf roller is absolutely first-class. Long song's effect is so good that many people are very optimistic. But I think Long song is hardly a hot topic this year. The reason is that (1) Longge is not registered in rice, but only in the control of Plutella xylostella and Spodoptera exigua. A pesticide that is not registered on the most important crop in China has become a hot spot in the market, which is not common, but rather difficult. This is determined by the basic national conditions of China. A product can not be fully promoted in China without plant protection departments at all levels, agricultural extension departments at all levels, that is to say, government departments at all levels. Who are the people who work in government departments at all levels? It's just some civil servants or institutions, that is, what we ordinary people call officials. What officials are most afraid of is the rice bowl on their heads and the rice bowl in their hands. To put it bluntly, they are most afraid of taking responsibility. A pesticide that is not registered on rice, if you let them go to the disease information and tell the people how good it is, it will definitely not work. Because if the medicine is really good, then the credit belongs to the medicine itself. If the medicine is not good for some reason, then the responsibility is entirely on you. This kind of thing that benefits others and harms oneself is definitely not done. As for why longge didn't register on rice, I'm not very clear. Perhaps only Japanese pesticide companies know this. (2) Another reason is that this medicine seems to be distributed to Dragon Lantern (South). A dragon lantern cannot make its own Long Ge. The top is subject to Japanese pesticides, and the bottom is faced with competition from products such as Kangkuan and Fuguo, which will greatly reduce the flexibility of market operation. However, I believe that in the near future, Longge may be registered on Rice, which may become a hot spot in the market. +、IMN)？ ; z
As for the price, we know that the price is very important. (The whole western microeconomics, that is, China's current market economy, can be summed up in two words: "price". No wonder kotler, the father of marketing, set the price at the top of 4P. Regarding the price of Longge, if Longge wants to be promoted to rice, he must consider the price of competitive products such as Kangkuan. The retail price of Kangkuan this year is 7 yuan/bag, 2 bags per mu of field, and the cost of medicine per mu of farmers 14 yuan. The price of Fogo may be slightly higher than that of Kangkuan. Some people estimate that it is around 8-9 yuan/bag, which is also 2 bags per mu. The retail price of Longge is also said to be set at 7 yuan/bag (5g package), with 2 bags per mu. However, Longge gives Dragon Lantern an agent (South), and Dragon Lantern pays more attention to the profit of channels, especially dealers, and may operate more smoothly in the market.