Fig. 4From: Thermal experiments with the Asian bush mosquito (Aedes japonicus japonicus) (Diptera: Culicidae) and implications for its distribution in GermanyAverage number of frost events with three days or longer at 0 °C or lower temperatures per year (1950–2016) in Germany. The temperature threshold was experimentally assessed and is valid for the larval stage, i.e. larvae do not survive such frost eventsBack to article page