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Related Experiment Video

Updated: May 30, 2026

Bioassays for Monitoring Insecticide Resistance

Bioassays for Monitoring Insecticide Resistance

Published on: December 30, 2010

Bifenthrin longevity at the termiticidal application rate.

Chris J Peterson¹

¹Insects, Diseases and Invasive Plants Unit, USDA Forest Service, Starkville, MS, USA. cjpeterson@fs.fed.us

Pest Management Science

|July 20, 2011

Summary

This summary is machine-generated.

Bifenthrin remains effective against termites for over 30 months, showing minimal soil leaching and degradation. This insecticide maintains its termiticidal activity in soil, even with vegetation present.

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Area of Science:

Environmental Science
Pest Management
Soil Science

Background:

Investigated the persistence, movement, and insecticidal efficacy of bifenthrin.
Focused on termiticidal application rates for perimeter treatments.

Purpose of the Study:

To determine the longevity and mobility of bifenthrin in soil.
To assess its insecticidal activity against termites over an extended period.

Main Methods:

Laboratory and greenhouse studies using packed-soil columns and larger pipe plots.
Biphasic degradation analysis and forced exposure bioassays for termite toxicity.

Main Results:

Bifenthrin was undetectable in eluates for 6 months, indicating low mobility.
Degradation occurred biphasically; soil half-lives were longer in non-vegetated soil.
Soil remained toxic to termites for the entire 30-month study duration.

Conclusions:

Bifenthrin concentrations persist in soil at levels sufficient to kill termites for over 30 months.
The insecticide demonstrates long-term efficacy for subterranean termite perimeter treatments.