Encontrados 36 documentos, a visualizar página 1 de 4
Impacto da traça-verde Palpita vitrealis (Rossi) em diferentes cultivares de ol...
Mateus, Helena; Figueiredo, Elisabete; Luz, João Pedro; Silva, Maria do Céu; Mexia, AntónioThe attacks of jasmine moth were monitored in three olive cultivars, ‘Arbequina’, ‘Cobrançosa’ and ‘Galega Vulgar’, in a five years old olive grove and also in a plot of ‘Galega Vulgar’ one year old near Belmonte. The observations were carried out in 2000, from April 5 to November 7 and the first symptoms were observed on July 7. ‘Cobrançosa’ was significantly less attacked throughout the observation period and...
Estimativa do risco de traça-verde Palpita vitrealis (Rossi) amplificada por co...
Mateus, Helena; Pereira, Cândido; Cardoso, Miguel; Manteigas, Ana; Sequeira, Manuel; Figueiredo, Elisabete; Luz, João Pedro; Mexia, AntónioJasmine moth population was monitored in olive groves in Cova da Beira, using traps baited with three commercial formulations of pheromone: Russell (in tricoloured funnel traps), SEDQ and Suterra (both in delta traps). Counts were carried out weekly from March to November 2010 for SEDQ’s pheromone and from September to November for Russell’s and Suterra´s pheromones. The scouts ranged among 0 and 4 insects/trap...
Parasitismo oófago de traça-do-tomateiro por Trichogramma evanescens (Hymenopte...
Payer, Rosângela; Mexia, António; Pratissoli, Dirceu; Figueiredo, ElisabeteTuta absoluta eggs were evaluated as host for Trichogramma evanescens with the aim of using indigenous species for biological control of the South American tomato moth. After being proved that T. evanescens could parasitize and achieve the complete development inside this host, parasitism rate, proportion of eggs within the parasitoid that reach the adult stage and viability of development rate, at three differ...
Avaliação de prejuizos causados pela mosca-da-azeitona Bactrocera (Daculus) ole...
Menezes, Carla; Azevedo, Jorge; Pimentel, Reinaldo; Lopes, David Horta; Mexia, AntónioIn the Azores archipelago, the olive tree only occurs in 2 Islands, Terceira and Pico. The olive fruit fly, Bactrocera oleae (Gmelin) is the key pest for this crop on the Island of Terceira, by causing important damage. Monitoring of B. oleae adults showed the occurrence of 2 population peaks, one of greater intensity in October and another of lesser intensity, in August. For the assessment of the damage caused...
Armadilhas de feromona sexual com luz para captura em massa de Tuta absoluta (M...
Matos, Tiago; Figueiredo, Elisabete; Mexia, AntónioIn an assay performed in November 2010, adults captured in sexual pheromone water traps with and without light were counted. In traps with light a part of the insects were sampled for sex identification. Water traps for mass trapping which combined the attractive effect of sexual pheromone and light captured higher levels of Tuta absoluta adults than the traditional ones, with pheromone bait only. However, thes...
Ensaio de eficácia de duas feromonas na captura de adultos de Cosmopolites sord...
Ventura, Lúcia; Santos, Ana; Cabrera, Raimundo; Lopes, David Horta; Mexia, AntónioThe objective of the survey was to evaluate the efficacy of 2 pheromones, in Cosmotrak traps, to control Cosmopolites sordidus Germar on banana orchards, in Terceira Island, Açores. The Cosmotrak traps with two pheromones were arranged in line, spaced by 20 meters. The pheromone cosmoplus has showed a greater efficacy than the pheromone sordidine, overcoming the pheromone sordidine by 41% from the captures of t...
Avaliação de feromonas na monitorização de bichado-da-castanha Cydia splendana ...
Santos, Ana; Azevedo, Jorge; Pimentel, Reinaldo; Ventura, Lúcia; Mexia, António; Lopes, David HortaChestnut moth, Cydia splendana, is the most important pest affecting the chestnut production on Terceira Island, Azores, responsible by important damages at the quality level. To evaluate the economic impact of this pest, was determinated the fruits infestation rate on a sample of 500 fruits collected in each parcel, in total of 6 parcels 4 of them distributed at the southern part of the Island in the villages ...
Avaliação da eficácia do isco com lufenurão a 3% no combate a Ceratitis capitat...
Lopes, David Horta; Pimentel, Reinaldo; Azevedo, Jorge; Mexia, AntónioThe main goal of this survey was to evaluate the effectiveness of a new method to control Mediterranean fruit fly, Ceratitis capitata Wied. (Diptera: Tephritidae), which could be less hazard for the human health and for the environment. This method uses baits with 3% of lufenuron. For this survey, 1056 of baits were installed covering an area of 44 ha in the North Island of Terceira. The experiment has started ...
Impacto da traça-verde Palpita vitrealis (Rossi) em diferentes cultivares de ol...
Mateus, Helena; Figueiredo, Elisabete; Luz, J.P.; Silva, Maria do Céu; Mexia, AntónioOs ataques de traça-verde foram monitorizados em três cultivares de oliveira, ‘Arbequina’, ‘Cobrançosa’ e ‘Galega Vulgar’,numolival de cincoanos de idade e na ‘Galega Vulgar’ também numaparcela com um ano de idade, na zona de Belmonte. As observações decorreram de 5 de Abril a 7 de Novembro de 2010, tendo sido observados os primeiros sintomas em 7 de Julho. ‘Cobrançosa’ foi significativamente menos atacada ao l...
Estimativa do risco de traça-verde Palpita vitrealis (Rossi) amplificada por co...
Mateus, Helena; Pereira, Cândido; Cardoso, Miguel; Manteigas, Ana; Sequeira, Manuel; Figueiredo, Elisabete; Luz, J.P.; Mexia, AntónioA monitorização da população de traça-verde foi efectuada, em olivais da Cova da Beira, em armadilhas com três formulações comerciais de feromona sexual: Russell (em armadilha funil tricolor) e SEDQ e Suterra (ambas em armadilha delta). As contagens, semanais, decorreram: nas armadilhas iscadas com feromona SEDQ, entre Março e Novembro de 2010; nas armadilhas com feromona Russell e Suterra, de Setembro a Novemb...
| Financiadores do RCAAP | |||||||
|
|
|
|
|
|
||