Symbionts in insect biology and pest control: An introduction

Microorganisms associated with insects can have substantial impact on diverse life-history traits of their hosts. This opens the opportunity to modify the insects' microbiome to support and improve insect performance, e.g. for insects used in biological control and breeding for food and feed. For this special issue, we have invited a range of contributors that explore the various aspects of the association of insects and their microbes.