ENXOFRE COMO DESALOJANTE PARA Spodoptera frugiperda, INCLUINDO CONSIDERAÇÕES SOBRE SUA MISTURA COM O INSETICIDA ESPINOSADE, EM PLANTAS DE MILHO DOCE

Abstract

The Zea mays (var. Saccharata) (Poaceae) cultivation in the Brazilian Midwest has real prospects for expansion. However, sweet corn plants are susceptible to attack by the corn cartridge caterpillar, Spodoptera frugiperda (Lepidoptera: Noctuidae). Recommended control strategies involve synthetic insecticides. However, this insect takes shelter inside the corn leaves, making difficult to control it. Sulfur-based product have the potential to expose these caterpillars and have even been used in farming practice for this purpose. However, sulfur doses and dosages, as well as its mixture with insecticides, still raise doubts in farmers. Therefore, the objective was to evaluate the biological responses for Spodoptera frugiperda exposed by leaf spraying, under different doses, dosages and mixtures combinations of the products Enxofert and Espinosade as well as according to six sampling time intervals: 0, 1 , 3, 5, 10 and 15 DAA (days after application) in sweet corn plants, under field conditions.