6 documents found, page 1 of 1
Português Nemátodes entomopatogénicos: agentes de proteção biológica
Borges da Silva, Elsa; Burgos, Francy; Castro, Sandra; Luís, Luís; Esteves, Ivânia; Maleita, CarlaNesta revisão evidencia-se o elevado potencial de utilização de nemátodes entomopatogénicos (NEPs) como agentes de proteção biológica na redução das populações de insetos fitófagos que podem causar estragos e/ou insetos vetores de doenças, em produção sustentável de alimentos, como alternativa ou complemento aos produtos fitofarmacêuticos. Descobertos em 1923, a sua comercialização como biopesticidas iniciou-se...
Half Friend, Half Enemy? Comparative Phytophagy between Two Dicyphini Species (...
Souto, Paula; Abraços-Duarte, Gonçalo; Borges da Silva, Elsa; Figueiredo, ElisabeteDespite their importance as biological control agents, zoophytophagous dicyphine mirids can produce economically important damage. We evaluated the phytophagy and potential impact on tomato plants of Dicyphus cerastii and Nesidiocoris tenuis. We developed a study in three parts: (i) a semi-field trial to characterize the type of plant damage produced by these species on caged tomato plants; (ii) a laboratory ex...
Functional response and predation rate of Dicyphus cerastii Wagner (Hemiptera: ...
Abraços-Duarte, Gonçalo; Ramos, Susana; Valente, Fernanda; Borges da Silva, Elsa; Figueiredo, ElisabeteDicyphine mirids are important biological control agents (BCAs) in horticultural crops. Dicyphus cerastii Wagner can be found in protected tomato crops in Portugal, and has been observed feeding on several tomato pests. However, the predation capacity of this species is poorly studied. In order to investigate the predation capacity of D. cerastii, and how it is affected by prey size and mobility, we evaluated t...
Reproductive output and insect behavior in hybrids and apomicts from Limonium o...
Conceição, Sofia I.R.; Fernandes, Joana; Borges da Silva, Elsa; Caperta, Ana D.Ex situ plant collections established from seeds of natural populations are key tools for understanding mating systems of intricate taxonomic complexes, as in the Limonium Mill. genus (sea lavenders, Plumbaginaceae). Plants show a polymorphic sexual system associated to flower polymorphisms such as ancillary pollen and stigma and/or heterostyly that prevents self and intramorph mating. The main objectives of th...
Intraguild predation and cannibalism among Dicyphini: Dicyphus cerastii vs. two...
Abraços Duarte, Gonçalo; Caldas, Filipa; Pechirra, Ariadna; Borges da Silva, Elsa; Figueiredo, ElisabeteDicyphine mirids are one of themost important groups of predators on tomato. In theMediterranean region, several species in the genera Dicyphus, Macrolophus, and Nesidiocoris (Hemiptera: Miridae, Bryocorinae, Dicyphini) colonize protected horticultural crops. In Portugal, Nesidiocoris tenuis (Reuter) is increasingly abundant in the mirid species complex of tomato crops and appears to be displacing the native Di...
New records of encyrtids (HYmenoptera: Encyrtidae) parasitoids of Coccomorpha (...
Japoshvili, George; Ramos, Ana Paula; Borges da Silva, ElsaOne new record for Iberian peninsula Leptomastix algirica Trjapitzin and three new records: Metaphycus dispar (Mercet), M. maculipennis (Timberlake) and Microterys dichrous (Mercet) for Portugal are given