Desarrollo de un protocolo preliminar para la crianza de un hemiptera pentatomidae, depredador de Gonipterus sp..

Abstract

The aim of this study was to develop a preliminary protocol for the rearing of a Hemiptera Pentatomidae predator of Gonipterus sp. The collection of Gonipterus sp. and the predatory hemiptera was carried out in the plantations belonging to the company Novopan S. A located in the province of Imbabura, then the samples were transferred to the laboratory located in the ESPOCH, Riobamba canton, province of Chimborazo, from there began the reproduction of Gonipterus sp. to obtain the larval stage that served as a food source for the predatory hemiptera. The establishment of the rearing was carried out in the GDETERRA laboratory, the site conditions were an average temperature of 22 degrees Celsius and an average relative humidity of 43 percent, respectively, with constant light 24 hours a day. The results obtained showed that, in the rearing of the predatory hemipteran at laboratory level, the larval stage of Gonipterus sp. that served as a food source for the predatory hemipteran was not acceptable, so it was decided to supply larvae of Spodoptera frugiperda, being called a generalist insect, it worked correctly as a food source, acting as a biological controller in several insects called pests, in which it was acceptable. It is concluded that the biological cycle of the predatory hemiptera presented hemimetabolous metamorphosis, with a total duration from oviposition to the nymphal stage V of about 40 to 45 days at an average temperature of 22 degrees Celsius, in the adult stage of 60 to 90 days reaching death, fulfilling its life cycle. More frequent sampling is recommended for the rearing of the predatory hemiptera in the change from one nymphal stage to another, since not all of them molt at the same time when they are in controlled conditions.