The use of exotic (= alien) arthropods in classical and augmentative biological control
programs has yielded huge economic and ecological benefits. Exotic species of arthropods …

Since the late 19th century, exotic ladybirds (Coleoptera: Coccinellidae) have been used
extensively for suppressing herbivorous insects of economic importance. In recent decades …

The harlequin ladybird, Harmonia axyridis (Pallas)(Coleoptera: Coccinellidae), is native to
Asia but has been intentionally introduced to many countries as a biological control agent of …

Intraguild predation (IGP) occurs when one predator species attacks another predator
species with which it competes for a shared prey species. Despite the apparent …

The chestnut gall wasp Dryocosmus kuriphilus is a global pest of chestnut (Castanea spp).
Established as a pest in the mid-twentieth century in Japan, Korea and North America, this …

In this chapter we present how ecologists and biological pest control researchers can
assess the role of natural enemies in pest insect population dynamics, and how the …

Species of predatory Coleoptera have become abundant in new geographic regions
recently, raising concerns for invaded ecosystems. We address this topic by focusing on …

We review the chemical ecology of the ladybird beetle Harmonia axyridis from the
perspective of its invasiveness and the deleterious effects it exerts in the regions it has …

There are a number of theories and processes relating to invasive alien species (IAS) and
their interactions with natural enemies (predators, parasites and pathogens), including the …

There are currently 1590 terrestrial arthropod species identified as alien to Europe. Of these,
513 are predators or parasites. The largest group is the insects (409 species), followed by …