Contribución al conocimiento de la biología de Helicoverpa gelotopoeon (Lepidoptera: Noctuidae) en condiciones de laboratorio en Argentina

HERRERO M. INES; FOGLIATA SOFIA; AUGUSTO CASMUZ; LUCAS FADDA; CASTAGNARO ATILIO; G. GASTAMINZA; M. GABRIELA MURÚA

REVISTA INDUSTRIAL Y AGRíCOLA DE TUCUMáN

Estación Experimental Agroindustrial Obispo Colombres

Año: 2017

Helicoverpa gelotopoeon (Dyar) (Lepidoptera: Noctuidae) is a polyphagous pest that causes damage in thevegetative and reproductive plant growth stages. Although its importance as a soybean pest in the Northwest of Argentina,there are no studies about biological and reproductive aspects, which are important to develop an integrated pestmanagement for this pest. The objective of this study was to examine biological and reproductive parameters of an H.gelotopoeon population collected in soybean (Glycine max L.; Fabales: Fabaceae) crop in Tucumán province. Larvaecollected were placed in breeding chambers under controlled conditions (25 ± 2°C, 70?75% RH, 14L:10Dphotoperiod).The parameters analyzed were: incubation period, duration of larval instars and pupal stage, pupal mass,adult longevity, sex ratio, number of spermatophores, preoviposition, oviposition and postoviposition periods, fecundityand fertility. Results of our study showed that H. gelotopoeon has an incubation period of three days, five larval instars, alarval stage of 14 days, a pupal and adult duration of 11 and 17 days respectively. This species completes a singlegeneration in 45 days and has a fecundity of 330 eggs per female with a fertility of 78%. These results were compared withthose obtained for other Helicoverpa species raised under similar conditions. This is the first report of biological andreproductive studies of H. gelotopoeon under controlled conditions