Abstract

A catalogue of classical biological control introductions of entomopathogens (fungi, microsporidia, viruses, bacteria, and one oomycete) and nematodes attacking arthropod pests, updated from a 2005 first edition, was published in 2016. This paper summarizes and discusses the 2016 catalogue. Classical biological control with pathogens or nematodes has been used to target insect or mite pests in 55 countries. A total of 164 release programs using 49 species or isolates of entomopathogens and nematodes for control of more than 85 target pest species were included in the analysis. For the 119 programs where results after release were reported, 71% of agents became established, and of those that established 51% resulted in successful control of the target pest and an additional 36% provided partial control. The most frequent pathogen groups used have been fungi, viruses, and nematodes, and the most frequent target hosts have been Coleoptera and Hemiptera. Releases of viruses were most successful at establishing (97%). The great success of some programs using pathogens highly specific to pest species suggests that this strategy should be further explored.

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