FITNESS COMPARISON IN AMBLYSEIUS SWIRSKII POPULATIONS RESISTANT AND SUSCEPTIBLE TO AN ABAMECTIN AND BIFENAZATE MIXTURE FORMULATION

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Doğan C., Kumral N. A.

the X EurAAc Symposium, Athens, Greece, 2 - 06 September 2024, vol.1, no.1, pp.53, (Summary Text)

  • Publication Type: Conference Paper / Summary Text
  • Volume: 1
  • City: Athens
  • Country: Greece
  • Page Numbers: pp.53
  • Bursa Uludag University Affiliated: Yes

Abstract

The predacious mite Amblyseius swirskii AthiasHenriot (Acari: Phytoseiidae) is an effective biocontrol agent of whiteflies, thrips and spider mites. A native Turkish population of the predator were artificially selected by an acaricide formulation that is a mixture of bifenazate and abamectin. Compared with its native population, selections in the laboratory for 6 consecutive generations resulted in 25 folds bifenazate and abamectin resistance. To examine the relative fitness of the abamecin and bifenazate-resistant population of A. swirskii, the life table parameters of resistant and susceptible populations of A. swirskii feed on eggs of Tetranychus urticae (Koch) (Acari: Tetranychidae) were observed under controlled conditions (27±1°C, 80±5% RH, L:D, 16:8).