MANEJO DE CIGARRINHA DO MILHO (Dalbulus maidis) COM USO DE PRODUTOS BIOLÓGICOS

Abstract

Corn is one of the major crops that dominate the country's agricultural areas, in addition to the world's areas, reaching around 1 billion tons produced per year. However, one of the biggest problems faced by producers is pest management, especially the corn leafhopper. This key pest is causing more and more work for producers, who, even using traditional chemical management, are unable to control the leafhopper. In this way, we have sought to obtain new control methods, thus creating a greater number of ways to combat this pest that has been causing so much economic damage to crops. The present study aimed to evaluate the effect of applying biological and chemical insecticides in management in the corn system and their effect on the population reduction of Dalbulus maidis. The treatments were control; Galil (Imidacloprid+Bifenthrin); Mig 66 (Beauveria bassiana isolate IBCB 66) + Cordyceps javanica; Galil (Imidacloprid+Bifenthrin) + Mig 66 (Beauveria bassiana isolate IBCB 66) + Cordyceps javanica. Assessments were carried out at intervals of four days and after these assessments, if the leafhopper population was greater than 3 leafhoppers per plant, the application was carried out. The results obtained showed an effectiveness in the consortium between biological products combined with chemicals, where this treatment achieved a production above the national average. It is concluded that the addition of biological products for the management of corn leafhopper favors the management of this key pest.