Effect of different temperatures on the degradation rate and half-life of termiticides in tropical soils under laboratory condition

Mohd Fawwaz Mohd Rashid, . and Abdul Hafiz Ab Majid, . Effect of different temperatures on the degradation rate and half-life of termiticides in tropical soils under laboratory condition. pp. 33-48. ISSN 1394-7990

Soil termiticide treatment is a fundamental method to control termite population and infestation by creating a continuous barrier surrounding the structures. Dissipation of termiticides depends on half-life degradation rate leaching activity and storage method. The use of termiticides without understanding their fate would lead to environmental contamination. This study determined the degradation rate and half-life of three commercially available termiticides (bifenthrin fipronil and imidacloprid) in soils having different textures a sandy loam and loamy sand under a laboratory setting. The remaining termiticides in the soils were extracted and analysed using an Ultra-Performance Liquid Chromatography (UPLC) system. It was found that bifenthrin had the highest half-life (166.88 days) and the lowest degradation rate (4.28ppm/day) compared to fipronil (56.05 days and 5.43 ppm/day) and imidacloprid (50.02 days and 5.46 ppm/day). On account of the high half-life lower degradation rates and good soil bonding capacities fipronil and bifenthrin are recommended as termite control in this study. These features make fipronil and bifenthrin termiticides suitable for buildings environmental protection.

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Abstract

Soil termiticide treatment is a fundamental method to control termite population and infestation by creating a continuous barrier surrounding the structures. Dissipation of termiticides depends on half-life degradation rate leaching activity and storage method. The use of termiticides without understanding their fate would lead to environmental contamination. This study determined the degradation rate and half-life of three commercially available termiticides (bifenthrin fipronil and imidacloprid) in soils having different textures a sandy loam and loamy sand under a laboratory setting. The remaining termiticides in the soils were extracted and analysed using an Ultra-Performance Liquid Chromatography (UPLC) system. It was found that bifenthrin had the highest half-life (166.88 days) and the lowest degradation rate (4.28ppm/day) compared to fipronil (56.05 days and 5.43 ppm/day) and imidacloprid (50.02 days and 5.46 ppm/day). On account of the high half-life lower degradation rates and good soil bonding capacities fipronil and bifenthrin are recommended as termite control in this study. These features make fipronil and bifenthrin termiticides suitable for buildings environmental protection.

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Item Type:	Article
AGROVOC Term:	Pesticides
AGROVOC Term:	Termites
AGROVOC Term:	Soil treatment
AGROVOC Term:	Laboratory experimentation
AGROVOC Term:	Temperature
AGROVOC Term:	Tropical soils
AGROVOC Term:	Sandy soils
AGROVOC Term:	Loam soils
AGROVOC Term:	Chemical degradation
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:54
URI:	http://webagris.upm.edu.my/id/eprint/9338

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