cyhalofop butyl ester CAS:122008-85-9

Cyhalofop-butyl ester is an important herbicide used primarily in rice cultivation but also finds application in other crop systems. Classified as a member of the aryloxyphenoxypropionate group, it is known for its selective action against grass weeds while being safe for broadleaf crops, which is critical for integrated weed management programs. Mechanistically, cyhalofop-butyl functions by inhibiting acetyl-CoA carboxylase (ACCase), an enzyme vital for the fatty acid biosynthesis pathway in plants. By disrupting this metabolic process, the herbicide effectively stunts the growth of sensitive grass species, leading to their death while allowing the crop to thrive. This selective action is attributed to the specific biochemical pathways targeted by the herbicide, which are present in grasses but not in the broadleaf crops it typically accompanies. The application of cyhalofop-butyl can be executed via ground and aerial spraying, often in conjunction with other weed management strategies. Its systemic nature means that it is absorbed through the leaves and roots, allowing for effective control of both emerged and potentially germinating weed seeds. In terms of environmental impact, cyhalofop-butyl is evaluated for its safety profile, with studies conducted to assess its effects on non-target organisms and potential for groundwater contamination. Proper application methods and adherence to recommended dosage are essential for minimizing risks to surrounding ecosystems. Overall, cyhalofop-butyl ester represents a critical asset in the herbicide arsenal for farmers, particularly in regions where grass weeds pose a significant challenge to crop yields, ensuring effective weed management while promoting sustainable agriculture practices.