Abstract
ABSTRACTMetarhizium rileyi is an entomopathogenic fungus of Lepidoptera and infects many noctuids, which are key pests of agricultural crops. In this literature review, we summarise the state of art and use of this potential biological pest control agent. Pathogen–host interactions include conidial adhesion, invasion process, and enzymatic activity. Environmental factors that impact the productivity associated with this fungus such as environment temperature, humidity, and availability of spores are discussed. Recent research has focused on enzymatic aspects related to pathogenicity, in which the cause is not fully elucidated yet. More than 60 known host species, mainly lepidopterans, are listed. Non-susceptible species, including predatory insects, are also presented. The difficulty of mass production and the formulation are the principal obstacles in use of M. rileyi. We summarise the challenges necessary to better utilise this agent in biocontrol and suggest novel research approaches, including the development of commercial and technically viable formulations.
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