In a wind tunnel trifluoromethyl ketones (TFMKs) have been found to disrupt the orientation flight of male moths to pheromone sources (virgin females or synthetic pheromone). This is demonstrated by comparison of the flight parameters of the Egyptian armyworm Spodoptera littoralis and the Mediterranean corn borer Sesamia nonagrioides, which had been topically treated with TFMKs, with those calc...

Despite the importance of heterosis and the efforts to comprehend this phenomenon, its molecular bases are still unknown. In this study, we intended to detect Quantitative trait loci (QTL) for mid-parent heterosis under infestation with the Mediterranean corn borer (MCB, Sesamia nonagrioides Lef.) using a North Carolina design III approach with a RIL population derived from a European flint inb...

There are two major rhythms of the biosphere, a daily cycle of night and day, and an annual seasonal cycle marked by changes in day and night length. The daily cycle is traced by an internal circadian clock that rules a large array of daily biochemical and physiological responses, while the seasonal cycle motivates photoperiodic responses that can be critical to survival, as in the case of inse...

The behavioural sequence of courtship and mating of Sesamia nonagrioides Lefèbvre males and females in laboratory cages is described. The attractant capacity of both sexes was studied by tethering males or females. The courtship and mating sequence of tethered females was the same as untethered ones, but tethered males were absolutely inactive. Age (1 day versus 2 days) did not affect the matin...

Misión Biológica de Galicia, Spanish Council for Scientific Research, Apartado 28, 36080 Pontevedra, Spain Butrón et al. 355 Abstract—The pink stem borer (PSB) (Sesamia nonagrioides Lefèbvre, 1827; Lepidoptera: Noctuidae) is the main insect pest of maize (Zea mays L., Poaceae) in the Mediterranean area. Maize varieties partially resistant to PSB have been identified, but few studies have docume...

1Department of Plant Protection, College of Agriculture, Shahid Chamran University of Ahvaz Ahvaz, Iran; E-mail: [email protected] 2Departments of Biology, College of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran; E-mail: [email protected]; [email protected] 3Department of Agronomy and Plant Breeding, College of Agriculture, Shahid Chamran University of Ahvaz, Ahvaz, Iran; E-m...

To develop efficient and safe biological control, we need to reliably identify natural enemy species, determine their host range, and understand the mechanisms that drive host range evolution. We investigated these points in Cotesia sesamiae, an African parasitic wasp of cereal stem borers. Phylogenetic analyses of 74 individual wasps, based on six mitochondrial and nuclear genes, revealed thre...