Türkiye Entomoloji Dergisi

Yazarlar: Melis YALÇIN, Serhan MERMER, Leyla KOZACI, Cafer TURGUT

Konular:-

DOI:10.16970/ted.63047

Anahtar Kelimeler:Tuta absoluta,Resistance,Enzymes,Leaf dip

Özet: In this study, the resistance of two (Aydın and Urla) populations of T. absoluta against five commonly used insecticides (indoxacarb, spinosad, azadirachtin, chlorantraniliprole and metaflumizone) were determined. Further, the activity of insecticide detoxifying enzymes [gluthation-S-transferase (GST) and esterase (EST)] was also evaluated to confirm the resistance. Aydın population of T. absoluta had higher resistant values 8-fold, 3.79-fold, 6.4-fold and 1.84-fold for indoxacarb, metaflumizone, spinosad and chlorantraniliprole, respectively against all insecticides except azadirachtin compared to the Urla population. It was determined that in comparison with T.absoluta population from Aydın, the Urla population can be more susceptible to other insecticides except azadirachtin. GST enzyme activity was 1.5-fold higher in Aydın than the Urla populations, however, EST enzyme had similar activity in both the populations. The results of study imply that T. absoluta populations from Aydın (Turkey) can be resistant against indoxacarb, metaflumizone, spinosad and chlorantraniliprole. Increased GST enzyme activity in resistant populations confirms this resistance development. Insecticides of plant origin like azadirachtin, for which least insecticide resistance was recorded, may be applied in combination with other methods to effectively control T. absoluta.

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