Baseline susceptibility of spotted wing Drosophila (Drosophila suzukii) to four key insecticide classes.

摘要: BACKGROUND The invasive drosophilid pest, Drosophila suzukii Matsumura, is affecting berry production in most fruit-producing regions of the world. Chemical control dominant management approach, creating concern for insecticide resistance this pest. We compared susceptibility D. populations collected from conventional, organic or insecticide-free blueberry sites. RESULTS The sensitivity to malathion and spinetoram declined slightly across 3 years monitoring, whereas it was more consistent methomyl zeta-cypermethrin. The all four insecticides (LC50 LC90 values) did not differ significantly among fields using different practices. CONCLUSIONS The baseline has been characterized, allowing future comparisons if field failures chemical are reported. concentration achieving high indicates that effective levels can still be achieved with rates these insecticides. However, declining some key highlights need monitoring. © 2017 Society Industry