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- Title
Immobilisation of bifenthrin for termite control.
- Authors
Guan, Yan-Qing; Chen, Jia Mei; Li, Zhi Bin; Feng, Qi Li; Liu, Jun-Ming
- Abstract
BACKGROUND: Termites are worldwide pests causing considerable damage to agriculture, forestry and buildings. While various approaches have been tried to eliminate termite populations, the relevant toxicants are associated with certain risks to the environment and human health. RESULTS: In this study, to combine the merits of effective chemical control by bifenthrin and a drug photoimmobilisation technique, silk fibroin was used as a carrier to embed bifenthrin, which was then photoactively immobilised by ultraviolet treatment on the surface of wood (cellulose). The immobilised bifenthrin embedded in the photoactive silk fibroin was characterised by Fourier transform infrared spectroscopy (FTIR), ultraviolet absorption spectroscopy (UV), fluorescence measurement and CHN analysis. The surface structures and biological activity were examined by scanning electron microscopy (SEM), atomic force microscopy (AFM), electron spectroscopy for chemical analysis (ESCA) and bioassays respectively. CONCLUSIONS: The results indicate that the embedded and immobilised bifenthrin has been very well protected from free release and has a long-term stability allowing slow release with a high efficiency against termites at a low dose of 1.25 µg cm
- Subjects
PEST control; TERMITES; FOURIER transform infrared spectroscopy; SPECTRUM analysis; SCANNING electron microscopy; ATOMIC force microscopy; X-ray photoelectron spectroscopy
- Publication
Pest Management Science, 2011, Vol 67, Issue 2, p244
- ISSN
1526-498X
- Publication type
Article
- DOI
10.1002/ps.2065