Weeds in wheat fields are difficult to prevent oxazoline herbicide opportunities

Weeds in wheat fields are difficult to prevent oxazoline herbicide opportunities

Triazolinic acid ester is a new phenylpyrazoline herbicide developed by Swiss Syngenta. In recent years, the predominant species of weeds in the wheat field has changed greatly, especially grass weeds are on the rise, and resistant weeds are developing rapidly, which makes it more difficult to control weeds. This is the current situation for the cereals headed by oxazoline oxalate. Tian Lu undergraduate weed herbicide brings development opportunities.

The oxazoline oxalate has good immediate effect. Generally, the sensitive weeds stop growing 48 hours after application, and the weeds completely die in 3 to 4 weeks. The barley and wheat have high safety and do not affect barley and wheat under adverse climatic conditions. Normal growth and final yield; The drug degrades rapidly in the soil and is rarely absorbed by the roots. The activity of the soil is very low and has no effect on the post-planting crops. The rain-resistance washout does not affect the weed control effect. Because of these advantages, oxazoline oxalates are more competitive than other wheat field herbicides currently used in production.

In most markets around the world, Syngenta is the only registered holder of the oxazoline glucoside original drug, and is also the owner of most formulation registrations. In terms of registered products, Syngenta has registered a large number of single agents worldwide. And compound products. The oxazoline oxalate is mainly formulated with a safener or herbicide, such as clofibrate, diflufenachlor, fluoxyl, and clodinafop-propargyl, and the common formulation is emulsifiable concentrate.

In China, the registered preparations include Syngenta's Ai Xiu 5% oxazolindifom EC and DaNeng 5% oxazoline clodinafop EC. In addition, oxazoline oxalate can also be combined with tribenuron, diflufenachlor, and 58 g/l biflorapyramine suspensions to control broad-leaved weed herbicides to achieve a one-time application. The purpose of the grass, but pay attention to the mixed sulfonylurea herbicides such as tribenuron-methyl, sulfonamide herbicides such as 58 g / l biflorapyramine suspension may reduce the zidoxalate grass weeds Control effect, should increase the dosage when mixing.

At this stage, many companies in the country have begun field trials of oxazoline. According to statistics from the China Pesticide Information Network, there are currently 15 domestic companies applying for 16 field trials, and the applications for the preparation are mainly 5% oxazoline EC (8) and 2.5% oxazoline + 2.5% clodinafop-propargyl Emulsifiable concentrates (3), and three other companies such as Anhui Jiuyi Agriculture Co., Ltd. also applied for a new formulation of the cyclodecadiol dispersible oil suspension.

Since the first registration of oxazoline oxalate in the United States in 2005, the market has spread over more than 50 countries and regions such as Europe, South America, North America, Asia Pacific and South Africa after a short span of 10 years. The most important market is Europe and North America. The cereal crop herbicide market has annual sales of more than 100 million U.S. dollars. In recent years, the prevention and control of weeds in wheat fields have become more difficult and brought development opportunities. In China, after Syngenta has been promoted and sold in recent years, the market is gradually maturing. Triazolyl is also a very promising herbicide product in China.

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