5 documents found, page 1 of 1
Current distribution of the African citrus psyllid Trioza erytreae in Portugal:...
Duarte, Beatriz; Poeira, Rita; Magalhães, Tomás; Paiva, Paulo; Soares, Celestino; Neto, Luís; Marques, Natália; Duarte, AmilcarThe onset of Trioza erytreae, the African citrus psyllid, in the northwest of the Iberian Peninsula (north of Portugal and northwest of Spain) caused great concern among citrus growers in Europe. This insect is a vector of the bacteria Candidatus Liberibacter spp., the causal agent of huanglongbing, one of the most devastating citrus diseases. The first report of T. erytreae presence in mainland Europe refers t...
Melanaspis corticosa: a new insect pest of olive trees in Europe
Mazzeo, Gaetana; Pellizzari, Giuseppina; Mateus, Célia; Silva, Elsa Borges da; Russo, Agatino; Nucifora, Salvatore; Soares, Celestino; Tomé, DoraThe presence of the South African Obscure Scale, Melanaspis corticosa (Brain) (Hemiptera, Diaspididae), was detected infesting olive trees, in Portugal. The identity of the scale insect was confirmed based on both morphological and molecular studies. Until now, this species was only known in a few African countries, including Guinea, Mozambique, South Africa and Zimbabwe. This is the first record of this specie...
Water vapor pressure deficit in Portugal and implications for the development o...
Paiva, Paulo Eduardo Branco; Cota, Tânia; Neto, Luis; Soares, Celestino; Tomás, José Carlos; Duarte, AmilcarAfrican citrus psyllid (Trioza erytreae (Del Guercio)) is a vector insect of the bacterium Candidatus Liberibacter africanus, the putative causal agent of Huanglongbing, the most devastating citrus disease in the world. The insect was found on the island of Madeira in 1994 and in mainland Portugal in 2015. Present in the north and center of the country, it is a threat to Algarve, the main citrus-producing regio...
Brassica carinata for control of Phytophthora spp. in strawberry field crops
Barrau, Carmen; Porras, Maria; Romero, Eva; Zurera, Carlos; Ramos, Nídia; Soares, Celestino; Neto, Eugénia; Marreiros, António; Entrudo, JoséSoil biofumigation (SB) and soil solarization (SS) are nonchemical methods for the control of soilborne pathogens. SS uses solar radiation to heat soil and SB is based on the action of volatile compounds produced by the decomposition of Cruciferae, essentially glucosinolates (Gs) and isothiocyanates (ITCs). Brassica spp. are used as biofumigant because of their different concentrations and types of ITCs that ar...
Caracterização da problemática da mosca-do-Mediterrâneo, Ceratitis Capitata (Wi...
Larcher-Carvalho, Ana; Monteiro, Carla; Soares, Celestino; Mumford, John; Fernandes, José Entrudo; Carvalho, José Passos; Madeira, EmíliaOs citrinos são afectados por uma numerosa panóplia de pragas e doenças que dão origem a avultados prejuízos. Entre os inimigos que afectam a cultura, a mosca-do-Mediterrâneo, Ceratitis capitata (Wiedemann, 1824), (Diptera-Tephritidae), justifica especial destaque.