Buprofezin

Buprofezin structure

Buprofezin is a pesticide used in agriculture to control sucking insects on rice, vegetables, ornamental plants, and other crops. It belongs to the chemical class of thiadiazines and functions as an insect growth regulator (IGR), specifically inhibiting the synthesis of chitin, which is a critical component of the insect exoskeleton. By interfering with chitin synthesis, buprofezin effectively disrupts the molting process, leading to the death of immature insects or preventing them from reaching maturity.

Chemistry

Buprofezin is a thiadiazine compound, characterized by its systemic action as an insect growth regulator. Its chemical formula is C16H23N3OS, indicating the presence of carbon, hydrogen, nitrogen, oxygen, and sulfur atoms. The mode of action of buprofezin is primarily through the inhibition of chitin synthesis, which is crucial for the development of the insect's exoskeleton. This mode of action categorizes buprofezin within a specific group of insecticides that target the physiological processes unique to insects, thereby offering a selective approach to pest control.

Usage

Buprofezin is widely used in the management of a variety of sucking insects, including planthoppers, whiteflies, and scale insects. Its application is most common in the cultivation of rice, where planthoppers are a significant pest, as well as in vegetables and ornamental plants where whiteflies and scale insects pose threats to plant health. Buprofezin is applied as a foliar spray, and due to its selective mode of action, it is considered safer for beneficial insects, making it compatible with integrated pest management (IPM) programs.

Environmental Impact

The environmental impact of buprofezin has been studied to ensure its safety for non-target organisms and its compatibility with sustainable agriculture practices. Being an insect growth regulator, buprofezin is less toxic to mammals and birds compared to traditional insecticides. However, its persistence in soil and water and potential effects on aquatic invertebrates necessitate careful management of its application to minimize environmental risks.

Regulation

The use of buprofezin in agriculture is subject to regulation by national and international bodies to ensure its safe application and to mitigate potential risks to human health and the environment. Regulatory agencies assess the toxicity, persistence, and ecological impact of buprofezin, setting guidelines for its use, including permissible residue levels on food crops.

Conclusion

Buprofezin represents a valuable tool in the management of sucking insect pests in agriculture. Its specificity as an insect growth regulator allows for targeted pest control measures that are less harmful to beneficial insects and non-target organisms. However, the responsible use of buprofezin, in accordance with regulatory guidelines and integrated pest management practices, is essential to maximize its benefits while minimizing potential environmental and health risks.

Buprofezin Resources
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