Overview
Buprofezin is a selective insect growth regulator (IGR) that targets the early developmental stages of pests, particularly whiteflies, leafhoppers, and planthoppers. It inhibits chitin synthesis, disrupting the molting process and preventing nymphs from maturing into adults. Developed in the 1980s, buprofezin is now a cornerstone of integrated pest management (IPM) due to its efficacy and low environmental impact. Unlike broad-spectrum insecticides, buprofezin is highly specific to certain pests, minimizing harm to beneficial insects like pollinators and natural predators. Its systemic action allows it to be absorbed by plants, providing prolonged protection. Regulatory agencies such as the EPA and EU have approved its use in multiple crops, reflecting its safety profile.
Physical and Chemical Properties
Buprofezin is a crystalline solid with a molecular weight of 305.44 g/mol and a melting point of 104-106°C. Its low solubility in water (0.46 mg/L at 20°C) makes it suitable for foliar applications, while its solubility in organic solvents like acetone and methanol facilitates formulation into emulsifiable concentrates or wettable powders. The compound is stable under normal storage conditions but degrades in strong acids or bases. Its vapor pressure is negligible, reducing the risk of volatilization. These properties ensure buprofezin remains effective in diverse agricultural environments, from humid rice paddies to arid citrus groves.
Main Applications
Buprofezin is primarily used in rice paddies to combat the brown planthopper (Nilaparvata lugens), a major pest in Asia. It is also effective against silverleaf whiteflies (Bemisia tabaci) in cotton and vegetables, and citrus psyllids (Diaphorina citri), which spread huanglongbing (citrus greening disease). In addition to field crops, buprofezin is applied in greenhouses and orchards. Its long residual activity (2-4 weeks) reduces the need for frequent reapplications. Some formulations combine buprofezin with other insecticides to broaden the spectrum of control, though resistance management strategies are recommended to prevent pest adaptation.
Safety and Storage
Buprofezin is classified as a low-toxicity compound (EPA Toxicity Category III) but requires standard handling precautions. Avoid direct contact with skin or eyes, and use in well-ventilated areas. In case of exposure, rinse thoroughly with water and seek medical advice if irritation persists. Store buprofezin in its original container, away from food, feed, and flammable materials. Ideal storage temperatures range from 0°C to 35°C. Dispose of unused product or empty containers according to local regulations to prevent environmental contamination.
B2B Procurement Guide
When sourcing buprofezin, prioritize suppliers with ISO or GMP certifications to ensure quality consistency. Request certificates of analysis (CoA) to verify purity (typically 95-98%) and confirm the absence of heavy metals or other contaminants. Bulk buyers should negotiate prices based on volume, with discounts common for orders exceeding 1 metric ton. Consider logistical factors such as shelf life (usually 2 years) and shipping conditions—avoid exposure to extreme temperatures during transit. Check import regulations in destination countries, as some regions require pre-approval for buprofezin use.
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