Drought-induced positive feedback in xylophagous insects: Easier invasion of Scots pine leading to greater investment in immunity of emerging individuals

► Higher temperatures may result in drought stress of pines. ► Carbon starvation can lead to decreased resistance against forest pests. ► Maximum ambient temperature is lower near forest lakes than away from lakes. ► Immunity of bark beetles emerging from pines away from lakes is weak. ► Warmer microclimate lowers resistance of pines to bark beetle attacks.