Indirect response to selection for improving resistance to the Mediterranean corn borer (Sesamia nonagrioides Lef) in maize

Courtship and mating behaviour of the Mediterranean corn borer, Sesamia nonagrioides (Lepidoptera: Noctuidae)

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...

Host location behaviour of gravid females in the Mediterranean corn borer Sesamia nonagrioides: external morphology of antennae and ovipositor sensilla

The behaviour of gravid females of Sesamia nonagrioides (Lefebvre) during host plant location in a wind tunnel is described using an ethogram and compared with unmated females, males and gravid females deprived of antennae. The sequence of behaviours exhibited by the majority of the intact gravid females began with a resting period followed by the unfolding of the antennae towards the plant plu...

Toxicity and mode of action of Bacillus thuringiensis Cry proteins in the Mediterranean corn borer, Sesamia nonagrioides (Lefebvre).

Sesamia nonagrioides is one of the most damaging pests of corn in Spain and other Mediterranean countries. Bt corn expressing the Bacillus thuringiensis Cry1Ab toxin is being grown on about 58,000 ha in Spain. Here we studied the mode of action of this Cry protein on S. nonagrioides (binding to specific receptors, stability of binding, and pore formation) and the modes of action of other Cry pr...

Is leaf or sheath antibiosis involved in the resistance of maize composite EPS12 to Sesamia nonagrioides?

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...

Effects of selection for resistance to Sesamia nonagrioides on maize yield , 1 performance and stability under infestation with