Introducción. El perforador del fruto tomate Neoleucinodes elegantalis (Guenée) (Lepidoptera: Pyralidae) y los minadores de la hoja Phthorimaea operculella (Zeller) Tuta absoluta Meyrick Gelechiidae), afectan producción en diferentes áreas Venezuela. parasitismo sus huevos por Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) es una valiosa alternativa control bajo costo sustentable...

The paternal sex ratio (PSR) chromosome is a supernumerary chromosome that causes the destruction of the paternal chromosome set in the first mitosis in a fertilized egg. It is known from parasitoid wasps in the genera Nasonia and Trichogramma (Hymenoptera). In these haplodiploids, the egg fertilized by sperm carrying PSR matures as a haploid male that again carries, and is capable of transmitt...

The cabbage looper, Trichoplusia ni (Hübner) (Lepidoptera: Noctuidae) is a generalist species and an important pest of Brassicaceae worldwide. Egg parasitoids are a feasible alternative for the control of this species. We evaluated the suitability of T. ni eggs as hosts for three Trichogramma Westwood (Hymenoptera: Trichogrammatidae) species and their tolerance to survive and develop within a r...