Lester Antonio Núñez Rodríguez, H. Rivedal, A. Peetz, C. Ocamb, I. Zasada
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First report of the root-lesion nematode, Pratylenchus penetrans, parasitizing hemp (Cannabis sativa) in the United States
In 2022, during a survey of plant-parasitic nematodes affecting hemp in Washington and Oregon, a Pratylenchus sp. was found parasitizing hemp roots. Morphology and morphometrics as well as molecular techniques confirmed the identity of the nematodes extracted from hemp roots as Pratylenchus penetrans. A pathogenicity assay done in the greenhouse confirmed hemp as a host to P. penetrans with an average reproduction factor of 2.2 after 60 days post inoculation. To our knowledge, this is the first report of P. penetrans on hemp in the United States. Key words: DNA, identification, morphology, Pratylenchus penetrans, Cannabis sativa Funding: This project was funded by USDA-ARS NACA Grant no. 2072-21000-056-004-S.
期刊介绍：
Plant Health Progress, a member journal of the Plant Management Network, is a multidisciplinary science-based journal covering all aspects of applied plant health management in agriculture and horticulture. Both peer-reviewed and fully citable, the journal is a credible online-only publication. Plant Health Progress is a not-for-profit collaborative endeavor of the plant health community at large, serving practitioners worldwide. Its primary goal is to provide a comprehensive one-stop Internet resource for plant health information.
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