Estimativa do risco de traça-verde Palpita vitrealis (Rossi) amplificada por co...

• Author(s): Mateus, Helena ; Pereira, Cândido ; Cardoso, Miguel ; Manteigas, Ana ; Sequeira, Manuel ; Figueiredo, Elisabete ; Luz, João Pedro ; Mexia, António
• Date: 2012
• Persistent ID: http://hdl.handle.net/10400.5/5749
• Origin: Repositório da UTL
• Subject(s): Palpita vitrealis; monitoring; risk assessment; sexual pheromone
• Document Type: Article
• Language: Portuguese

Description

Jasmine 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/ week. A contaminant Lepidoptera species, not yet identified, was captured in the SEDQ traps. They were smaller, brownish and they were captured largely than the jasmine moth. Comparing these flight curves to the ones obtained from Castelo Branco, Ribatejo and Alentejo Stations (official Advisory Services), regions where this pest was monitored using the same methodology, a great disparity in the number of individuals captured was observed, which raises the possibility of the contamination found here may also occur in some of these regions