Nematode of the genus Steinernema sp. as a possible controller of Frankliniella occidentalis in the propagation of cuttings of four standard carnation crops in the Bogotá plateau

Abstract

The thrips, Frankliniella occidentalis (Pergande) (Thysanoptera: Thrypidae), are a polyphagous quarantine pest that causes damage throughout the plant development cycle; for nailing cuttings their damage is identified as scrapes on the leaves, tissue deformations and reduction in the size of the cuttings, which affects their marketing Entomopathogenic nematodes are efficient biological controllers, are symbiotic associated with gram-negative bacteria and kill prey in a short time. The aim of the research was to determine the effect of the nematode of the genus Steinernema, evaluating the incidence of F. occidentalis, the efficacy of Steinernema sp. With respect to the production of cuttings and a cost-benefit ratio Comparing biological control and chemical control in a commercial clavel propagation crop in La Sabana de Bogotá. The evaluation was carried out on four cultivars of standard navel mother plants between weeks 44 and 52 of 2018. Polyurethane foams containing 1 x 106 of infected juveniles of Steinernema sp. Applied by a flute irrigation system were used and compared with a control group (commercial chemical).