More than 47,000 mature fruits of nine different varieties of rambutan (Nephelium lappaceum L.) were harvested from orchards in Hawaii to assess natural levels of infestation by tephritid fruit flies and other internal feeding pests. PMID:28208159įield infestation of rambutan fruits by internal-feeding pests in Hawaii. Results indicate that likely Vietnam is still an unexplored reservoir of Phytophthora diversity. citrophthora as causal agent of fruit brown rot of Citrus worldwide and the first report of P. This is the first report of a Phytophthora species from Clade 2 other than P. sinensis ‘Washington Navel’ x Poncirus trifoliata). Koch’s postulates were fulfilled via pathogenicity tests on fruits of various Citrus species, including pomelo, grapefruit (Citrus x paradisi), sweet orange (Citrus x sinensis) and bergamot (Citrus x bergamia) as well as on the rootstock of 2-year-old trees of pomelo and sweet orange on ‘Carrizo’ citrange (C. volkameriana) rootstocks grafted with ‘King’ mandarin (Citrus nobilis) and from trees of pomelo, respectively, in other provinces of the Mekong River Delta, indicating a widespread occurrence of both Phytophthora species in this citrus-growing area. mekongensis were also obtained from necrotic fibrous roots of Volkamer lemon (C. meadii and was informally designated as Phytophthora sp. insolita, a species in Phytophthora Clade 9, while the other one, was closely related to but distinct from the Clade 2 species P. prodigiosa, being closely related to but distinct from P. On the basis of morphological characters and using the ITS1-5.8S-ITS2 region of the rDNA and the cytochrome oxidase subunit 1 (COI) as barcode genes, one of the two taxa was provisionally named as Phytophthora sp. Two distinct Phytophthora taxa were found to be associated with brown rot of pomelo (Citrus grandis), a new disease of this ancestral Citrus species, in the Vinh Long province, Mekong River Delta area, southern Vietnam. Schena, Leonardo Jung, Thomas Evoli, Maria Pane, Antonella Van Hoa, Nguyen Van Tri, Mai Wright, Sandra Ramstedt, Mauritz Olsson, Christer Faedda, Roberto Magnano di San Lio, Gaetano Two previously unknown Phytophthora species associated with brown rot of Pomelo (Citrus grandis) fruits in Vietnam sinensis 'Washington Navel' x Poncirus trifoliata). Koch's postulates were fulfilled via pathogenicity tests on fruits of various Citrus species, including pomelo, grapefruit (Citrus x paradisi), sweet orange (Citrus x sinensis) and bergamot (Citrus x bergamia) as well as on the rootstock of 2-year-old trees of pomelo and sweet orange on 'Carrizo' citrange (C. volkameriana) rootstocks grafted with 'King' mandarin (Citrus nobilis) and from trees of pomelo, respectively, in other provinces of the Mekong River Delta, indicating a widespread occurrence of both Phytophthora species in this citrus-growing area. Puglisi, Ivana De Patrizio, Alessandro Schena, Leonardo Jung, Thomas Evoli, Maria Pane, Antonella Van Hoa, Nguyen Van Tri, Mai Wright, Sandra Ramstedt, Mauritz Olsson, Christer Faedda, Roberto Magnano di San Lio, Gaetano Cacciola, Santa Olga Two previously unknown Phytophthora species associated with brown rot of Pomelo (Citrus grandis) fruits in Vietnam.
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