It is understood that there are a total of 400 pesticides enterprises in Chinese, the registered avermectin and missible oil products have 1,300. Chinese Avermectin production in 2009 had reached 1,600 tons or so. Of which 45% to 50% are exporting, China consumes more than 800 tons avermectin original drug, except 1/3 used for emamectin, but calculated with 1.8% levels avermectin, it can produce 30,000 tons avermectin preparations, farmland use is at least 20,000 tons. For this reason, abamectin suppliers believe that demand for avermectin production is basically balance, currently, avermectin price is 700,000 yuan per ton, according to market applications, the next year market season is expected to reach 800,000 to 900,000 yuan/ton, avermectin formulation prices is basically stable.
Prior to 2007, due the high cost of Avermectin, it is mainly for economic crops, has been unable to promote in farmland. By the end of 2006, in the high-toxic pesticide alternatives project, the application of avermectin on the crop was officially recommended. So far in the high-toxic pesticide alternatives demonstration projects, avermectin has been key recommendation in four batches on rice, soybean, cotton, citrus, apples and other crops; wherein the highly toxic pesticide alternatives appeared typical cases, succeeded in discovering the activity and efficacy of 1.8% avermectin on rice leaf roller, in coordination with the relevant enterprise avermectin formally entered the farmland.
Currently, the main application areas of avermectin registered in China: vegetables (cabbage worm, diamondback moth, leafminer, root-knot nematodes), fruit (citrus leafminer, rust ticks, spider mite, two-spotted spider mite Apple, peach fruit moth, pear psylla, etc.), cotton (cotton bollworm, spider mites, etc.) as well as on the prevention and control of rice leaf roller. With the application of Chinese avermectin, Southeast Asia, Taiwan and other places, in recent years, the application of avermectin is significant increasing and exports soared, the information shows that Thailand annual consumption of Avermectin is about 250 tons, Vietnam 350 tons, and other areas totaling approximately 200 to 250 tons, these areas in the future will be a major increase avermectin regions. Avermectin become the world's most widely used pesticide.
Industry experts pointed out that there are two phenomena in Chinese avermectin and formulations manufacturing enterprises and should attach the attention of relevant departments, first, the majority of abamectin manufacturers only sell original drug, basically no brand agents, rarely promote the application of preparations. Second, most of the avermectin formulation manufacturing companies themselves because they do not produce the original drug, lack of systematic understanding of the original drug, the original drug formulations without in-depth study, preparation batches vary greatly, resulting in many companies avermectin preparations quality instability, farmers use reflection are different.
Since the preparation quality and agricultural service differences, resulting in the rate of avermectin produce resistance to different pests is different. According to the relevant plant protection monitoring stations showed that: In recent years, the sensitivity of diamondback moth to avermectin has gradually declined, and even reached the middle anti level. Flies, Diamondback has certain resistance. The resistance mechanism of insects, mites to avermectin is controlled by multiple genes, and most of them are recessive inheritance, resistance develops slowly, but once generated resistance it will be difficult to deal with.
Source:http://www.cospcn.com