Aplicação do fungo Metarhizium anisopliae por pulverização para controle de Cigarrinha na Cana-de-Açúcar

Abstract

The root spittlebug (Mahanarva fimbriolata) is one of the main pests affecting sugarcane crops, causing significant losses in productivity and technological quality. This study evaluated the effectiveness of the entomopathogenic fungus Metarhizium anisopliae, applied by spraying, for the biological control of this pest in commercial sugarcane fields. Aspects of fungal biology, infection mechanisms, application methodology, environmental factors influencing efficacy, and impacts on production were analyzed. The results demonstrated near-total suppression of the spittlebug population in the short term, although reinfestation occurred later, highlighting the need for repeated applications and integration with other management practices. The study evidences the potential of M. anisopliae as a sustainable alternative to chemical control, promoting Integrated Pest Management (IPM) strategies in sugarcane cultivation.