Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

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Studies on Diaporthe eres (Phomopsis oblonga) as a new pathogen of water hyancith (Eichhornia crassipes) in Romania.

Abstract

Water hyacinth (Eichhornia crassipes) is a free-floating aquatic weed, known as the worst invasive one in many tropical and subtropical regions worlwide. This weed affect agricultural crops, navigation, irrigation and water quality as well. Sustainable management of water hyacinth is based on chemical, physical and biological means. The aim of this study, conducted at USAMV of Bucharest in 2018, was to identify fungal pathogens of water hyacinth in Romania as candidate for biological control agents and an environmentally safe solution. Diaporthe species are known as saprobes, endophytes or pathogens in many plants. As fungal pathogens, some species are associated with foliar spots, twig canker, shoots blight, wood and fruit rot. We report here the detection, morphological and molecular identification, the pathogenicity and host specificity on water hyacinth of one isolate of D. eres (Phomopsis oblonga). To our knowledge, this is the first report of D. eres a pathogen specific to water hyacinth in Romania.