Longevity and parasitic capacity of the azorean type of Trichogramma cordubensi...

• Author(s): Pinto, Francisco ; Tavares, João
• Date: 1991
• Persistent ID: http://hdl.handle.net/10400.3/782
• Origin: Repositório da Universidade dos Açores
• Subject(s): Agricultural Pests; Biological Control; Trichogramma cordubensis Vargas & Cabello; Island of São Miguel (Azores)
• Document Type: Article
• Language: English

Description

3rd International Symposium "Trichogramma and other egg parasitoids". 3ème Symposium International "Les trichogrammes et autres parasites oophages", San Antonio (USA), 23-27 Sep 1990. The recent capture at the island of São Miguel-Azores of a local type of Trichogramma cordubensis Vargas & Cabello (Hym., Trichogrammatidae) gave rise to the question of its epigenetic characterization, according to parameters indentical to those of the continental type. This characterization was carried out with the objective of recognizing its ability to be used as a biological control agents against agricultural pests in this region. It was verified, for this local type, that, in similarity with the continental type, the maximum of its parasitic capacity occurs in the first day after emergence. This seems to indicate that this insect should be introduced in the inundative release fields before its emergence. The local type of T. cordubensis diverged significantly from the continental type in its longevity.