Speaking of the most concerned insecticides in recent years, It must be chlorantraniliprole which is what we usually call “Kangkuan”. It is not only small in dosage, high in safety, fast in killing insects, Although the price is a bit high, it is still the first choice for many growers to control lepidopteran pests. Today we will talk about the “Prince of Insecticides” Chlorantraniliprole.
1.Chlorantraniliprole
Chlorantraniliprole is a bisamide insecticide, which is a hot spot in the field of insecticide research for major agrochemical companies around the world in recent years. The origin of bisamide insecticides is a plant extract called “ryanodine”, which can cause weakness and paralysis of animal muscle regulation. Before the middle of the 20th century, it was only smeared by Indians in South America. Bows and arrows are used for hunting. After its function was discovered by modern chemical science, it has been continuously developed and improved by major agrochemical companies, and it has become a high-efficiency agricultural pesticide category that has attracted widespread attention in recent years.
At present, there are 8 products that have been commercialized or are about to be commercialized. In addition to the chlorantraniliprole we are going to share today, we are more familiar with flubendiamide (launched in 2006), cyantraniliprole (launched in 2013) ), tetrachlorantraniliprole (launched in 2014), etc. Up to now, there are 34 valid registration information of chlorantraniliprole that can be inquired on China Pesticide Information Network, including 4 technical registrations and 14 single-dose registrations, except the effective content of 5% and 200g for routine spraying. /L suspending agent, 35% water dispersible granules, 0.01%, 0.03%, 0.4%, 1% granules, 50% seed treatment suspending agent, and 5% ultra-low mainly used for flight defense Volumetric liquid preparations; 16 registered mixtures, mainly the complex preparations of chlorantraniliprole and clothianidin, thiamethoxam, pymetrozine, abamectin, beta-cyhalothrin, etc.
Chlorantraniliprole is a bisamide insecticide that DuPont first promoted and entered the market in 2007 with flubendiamide as the leading compound. It was registered in China in 2008 and its trade name is “Kangkuan”. It has been registered and sold in more than 100 countries. Its mechanism of action is mainly by activating the ryanodine receptors of the pests, leading to the abnormal opening of the receptor channels, so that the calcium ions in the pest cells are released unrestrictedly, causing muscle regulation. Weakness, paralysis, and ultimately the death of the pest.
Since the active ingredient of chlorantraniliprole shows a significant difference in selectivity for ryanodine receptors between mammals and pests, it is only effective against pests, while it is relatively safe for humans and other animals.
2.Features
①High efficiency and broad spectrum. When chlorantraniliprole first appeared on the market, only a few grams per mu can be used to achieve a better control effect. After a few minutes of application, the pests can stop feeding, and the dead insects can be reached within 2-3 days. It is widely used in various crops such as vegetables, fruit trees, food crops, ornamental plants, etc., and is used for the control of leaf rollers, borers, diamondbacks, and nocturnal plants. A variety of pests such as armyworms, cotton bollworms, heartworms, diamondback moths, borers, noctuid moths, bemisia tabaci, leafminers, weevil
②At the same time, it has contact killing and stomach poisoning effects, as well as good systemic permeability. Chlorantraniliprole is mainly stomach poison, has contact killing effect, and has strong systemic permeability. The agent can penetrate through the surface of the plant (spray on stems and leaves) or absorb through the roots (granule or seed treatment). In the body of the crop, it enters the xylem through the epidermal cell layer of the plant, so that it can be transmitted up the xylem to other unapplied parts, bringing comprehensive protection to the crop.
③ Low toxicity, no residue, good compatibility with other agents, and high egg and juvenile activity. Chlorantraniliprole has extremely high activity on young larvae. Since chlorantraniliprole exerts insecticidal effect by affecting muscle contraction, and eggs have no muscles, chlorantraniliprole is ineffective against eggs, but when eggs are When the larvae are about to hatch, chlorantraniliprole can penetrate into the egg shell to contact the larvae; or kill the larvae through stomach poisoning when the larvae bite through the egg shell.
3.precautions
①Do not mix with alkaline chemicals and fertilizers. When the temperature is high and the evaporation in the field is large, the medicine should be used before 10 am and after 4 pm, which can reduce volatilization, increase the amount of liquid medicine received by crops, and improve its permeability, thereby improving the control effect.
②Resistance and countermeasures. As the pest grows, the resistance will also increase, and then the effect of the insecticide will be greatly reduced. The same is true for p-chlorantraniliprole, which has a reduced control effect on older pests, and it is best to use it when the pests are at a young age. At the same time, with the wide application of chlorantraniliprole in recent years, certain drug resistance has been shown in many places. For the situation where drug resistance has already appeared, it is recommended that you should give priority to products with high content when using them, and try not to use them as much as possible. Products with low effective content, and at the same time, the control effect can be improved by mixing and compounding other types of pesticides; You can also choose different formulations such as seed treatments and granules, and try different spraying methods and spraying periods; if the resistance is too severe, there is no need to continue using it. You can try to choose indoxacarb, lufenuron, insecticide Other insecticide products such as nitrile.
③Chlorantraniliprole is toxic to algae and some aquatic organisms, low toxicity to birds and bees, and highly toxic to silkworms. It must be kept away from these organisms and places when using it. Do not use more than 3 times per crop or one pest.
Post time: Nov-02-2022