World Agrochemical Network reported: In the past two years, the trend of pesticide compounding to become the mainstream of the market has become increasingly obvious. Generally speaking, the combination of pesticides can not only effectively delay the generation and development of resistance to prothiobacillazole, but also effectively produce synergistic effects, thus extending the life cycle of the product.
A single pesticide refers to a single active ingredient of a pesticide, while a compound refers to a preparation made by mixing two or more pesticides of different component types in a pesticide. So compared to a single dose, what are the advantages of pesticide compounding? Why can it make pesticide manufacturers so fond of development and production?
Advantage 1: The compound agent can significantly increase its control effect compared with a single agent
There are many ingredients of pesticides, but not every ingredient can be mixed. In addition, different from the two components of pesticides that farmers mix daily, when the two components of pesticides are mixed, the biggest difficulty is how to determine the ratio between the two pesticides, because the different ratio, the final control effect will also be very different ", which involves the professional term - cotoxicity coefficient.
If two different pesticides are mixed together, and then through a series of toxicity mixing tests, if the final data obtained, the cotoxicity coefficient value between them is greater than 100, it means that the combination of these two pesticides has a synergistic effect; If it is equal to 100, it means that the mixture of these two pesticides has no synergistic effect, only the addition of cooperation; If it is less than 100, it means that there will be antagonistic and reducing effects between them, which means that the two compounds should not be mixed.
Advantage 2: The control spectrum of compound agent is wider than that of single agent
Taking avermectin as an example, it can prevent adult mites and mites of starscream, but it has no effect on the egg mass of starscream, then if combined with ethylacazole or spirodex, it can achieve effective on all forms of starscream, so that adult insects and egg mass control together.
Advantage 3: The compound is less prone to drug resistance than a single agent, and the advantages of the two ingredients can be complementary
Similarly, taking the common azole and pentazolol as an example, pyrazolium is a protective fungicide, while pentazolol has a good inhalation therapy. The combination of these two components can make the agent have both protective and therapeutic effects. In this way, whether it is used before or after the onset of crop disease, it has a good control effect.
Another example is the azole • Desenine, pyrazole ether ester has a good absorption, but the disadvantage is that the application point is single, repeated use is easy to produce resistance; The Dyson connection has only a touch effect and no endogenicity, but it has the advantage that it is not easy to produce resistance. As a result, as long as the pyrazolesterin and deisen are combined, the advantages of the two components can be complementary, so that the compound drug has internal absorption, but not easy to produce resistance.
Advantage 4: The use cost of the compound is lower than that of the two single-dose bucket mixes
For example, the same abamectin and acetozole, the use cost of 400-600 pounds of water of the manufacturer is mostly 25-30 yuan (the price is only for reference); And we bought two kinds of abamectin and acetozole single agent for bucket mixing, 400-600 pounds of water cost between 30-35 yuan. This is because the compound can save a series of costs such as empty bottles, labels, additives, carton packaging and so on. Therefore, the production cost of the manufacturer is lower, and the price is naturally cheaper.
Advantage 5: The amount of compound is more economical than that of single agent, which is conducive to realizing the policy of pesticide reduction and efficiency implemented by the state and is more environmentally friendly
Then, also taking the azole and pentazolol mentioned above as an example, the use times of 25% pyrazolol single dose on citrus is generally 2000 times, while 43% of pentazolol single dose is 2000 ~ 3000 times, but now we mix 10% pyrazolol and 20% of pentazolol, Its use multiple can also reach 2000 to 3000 times, so that compared with their two respective single-dose barrels, the amount is significantly reduced.
Why are pesticide compounding becoming more and more popular? What advantages does it have over a single dose?
2024 03/19