What question did this study set out to answer?

The research aims to evaluate the stability of zeta-cypermethrin resistance in Drosophila suzukii populations.

March 29, 2026Pest Management Science0 citationsOpen Access

Investigating zeta‐cypermethrin resistance stability in California Drosophila suzukii populations

NBNicolas BuckUniversity of California, Davis FGFatemeh GanjisaffarUniversity of California, Riverside FZF. G. ZalomUniversity of California, Davis

Key Points

The research aims to evaluate the stability of zeta-cypermethrin resistance in Drosophila suzukii populations.
Assessed resistance under laboratory conditions following field exposure to zeta-cypermethrin.
Evaluated population bottleneck effects on resistance persistence.
Resistance to zeta-cypermethrin was found to persist even after selection pressure was removed.
The study noted implications for the management of Drosophila suzukii due to the stability of resistance.

Abstract

Field derived resistance to a commonly used pyrethroid insecticide in D. suzukii can persist post-selection and following a population bottleneck in a laboratory environment. These are the first studies to assess insecticide resistance stability in this economically important pest, and results warrant consideration for pest management programs. © 2026 The Author(s). Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

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