Cucurbit production systems in Australia and biosecurity risks associated with viral pathogens

Abstract

AbstractViral infection is a key limiting factor to cucurbit production globally. The viral population within Australia differs from that elsewhere in the world in that it is represented by relatively few key pathogens from a small number of virus families. Viral infections induce a range of physical deformities and discoloration on leaves and fruit of cucurbit commodities. Typically, viral infections result in the decline of marketable yield and even plant death in extreme cases. Identifying key exotic viral issues and the analysis of existing preparedness plans, surveillance programs and diagnostic options are critical biosecurity strategies required to mitigate the introduction of new pathogens into Australia. This review discusses the biosecurity threat exotic viruses pose to Australian cucurbit production systems and the inherent difficulties associated with managing viral pathogens.