research-article | 30-November-2020
During February and May 2021, several potted American pitcher plants (Sarracenia sp.) with roots galls induced by root-knot nematodes were collected from a botanical garden in Los Angeles County, California. Based on the analysis of several molecular markers, the root-knot nematode extracted from the galled roots was identified as the Texas peanut root-knot nematode M. haplanaria (Eisenback et al., 2003) in the Nematology Laboratory, Plant Pest Diagnostics Center, California Department of Food
Sergei A. Subbotin
Journal of Nematology, Volume 53 , 1–7
research-article | 16-April-2020
Peanut (Arachis hypogaea) is an important crop in the United States with 757,000 ha planted in 2018, worth $1.15 billion (NASS-USDA, 2019a, b). Much of the production is concentrated in the Southeast where Meloidogyne arenaria (peanut root-knot nematode (PRKN)) can significantly reduce yields with suppression approaching 50% observed in field research (Rodriguez-Kabana and Robertson, 1987; Rodriguez-Kabana et al., 1994a, 1994b). Damage thresholds for this nematode are 1 egg/100 cm3, so any
Zane J. Grabau,
Mark D. Mauldin,
Alemayehu Habteweld,
Ethan T. Carter
Journal of Nematology, Volume 52 , 1–10
research-article | 30-November-2020
a mixture of two root-knot nematode species: the Parana coffee root-knot nematode, Meloidogyne paranaensis (Carneiro et al., 1996) and the peanut root-knot nematode, Meloidogyne arenaria (Neal, 1889) Chitwood, 1949. To the best of our knowledge, it is the first report of M. paranaensis in the continental United States.
Meloidogyne paranaensis was first described in 1996 in the state of Paraná, Brazil (Carneiro et al., 1996; Campos and Vallain, 2005). This species is considered as one of the
Sergei A. Subbotin,
Julie Burbridge
Journal of Nematology, Volume 53 , 1–6