Biological basis for adoption of an isoline of Telenomus remus (Hymenoptera: Scelionidae) for an augmentative biological-control program for Spodoptera frugiperda (Lepidoptera: Noctuidae).

The widely distributed, polyphagous fall armyworm, Spodoptera frugiperda (J.E. Smith, 1797), is one of the most important crop pests worldwide. The egg-parasitoid wasp, Telenomus remus Nixon, 1937, is frequently described as a possible control agent for S. frugiperda. We selected an isoline of T. remus and evaluated its parasitism potential (for 24 h) in S. frugiperda eggs, in laboratory conditions, and also its ability to fly at different temperatures and relative humidity levels, aiming to provide basic information about this isoline. The selected isoline maintained good flight capacity without affecting its parasitism efficiency or developing inefficient haplotypes for biological-control programs, compared across generations to a regularline laboratory-reared for more than 60 generations. The flight capacity of the isoline was best at 25-30 °C and relative humidity 70-90%.

Biology at Different Temperatures, Thermal Requirements, and Ecological Zoning of Opogona sacchari (Lepidoptera: Tineidae).

The banana moth, Opogona sacchari (Bojer, 1856), is a polyphagous pest that causes serious damage to different crops around the world, particularly to bananas in southern Brazil. The insect is designated a quarantine pest in several countries including Argentina, the main consumer market for bananas produced in southern Brazil. To provide support for the management of O. sacchari, the present study investigated the biology and thermal requirements at eight temperatures (18, 22, 25, 28, 30, 32, 33, and 34 ± 1°C) and constructed a fertility life table at five temperatures (18, 22, 25, 28, and 30 ± 1°C). Above 30°C, the mortality of all life stages was 100%; the best temperature for development was 25°C. Based on this information, an ecological zoning of the pest was developed for Brazil. The lower temperature threshold was 8.6°C. The zoning indicated that the pest does not occur in regions with warmer climates, corresponding to the actual distribution of this pest in Brazil.

Avaliaçäo do comportamento morfodimensional de materiais de moldagem utilizados em implantes dentais / Evaluation of the morphodimentional behavior of impression materials used in dental implants

Próteses com assentamento passivo sobre os implantes säo um dos requisitos fundamentais no controle das cargas transmitidas à interface implante-osso. Sua construçäo requer o uso de materiais de moldagem que registrem precisamente a posiçäo de implantes, bem como suas relaçöes com os dentes adjacentes. O presente trabalho avaliou o comportamento morfodimensional de seis siliconas de adiçäo, um poliéter, um polissulfeto, uma silicona de condensaçäo e um hidrocolóide irreversível, quando empregados em uma técnica de moldagem e transferência da posiçäo de implantes dentais. A análise dos dados obtidos demonstrou que todos os materiais testados apresentaram alteraçöes dimensionais estatisticamente significantes. A silicona de adiçäo President apresentou a menor alteraçäo dimensional, enquanto que o hidrocolóide irreversível Orthoprint apresentou a maior alteraçäo. Finalmente, todas as siliconas de adiçäo produziram modelos semelhantes, seguidas do poliéter, do polissulfeto, da silicona de condensaçäo e o hidrocolóide irreversível