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Mahanarva fimbriolata (Stal, 1854) (Hemiptera: Cercopidae) can cause significant losses in crops of sugarcane and insecticides are used to the control of nymphs and adults spittlebug. However, there is no information on the effectiveness of biological and chemical methods of control for producing regions of sugarcane in Mato Grosso do Sul State MS. Therefore, the objective of this study was to evaluate the efficiency of chemical and biological insecticides in the control of leafhopper root in a sugarcane plantation, located in the municipality of Angelica MS. The experimental design consisted of randomized blocks with three treatments and eight replications. The treatments tested were: 1) control (untreated), 2) Thiamethoxam (Actara 250 WG®) – 1 Kg ha-1, 3) Metarhizium anisopliae – 10 Kg ha-1 (Biometha G®). The efficiency ratings of treatments obtained at 15, 30, 45, 60, 75 and 90 days after application (DAA) were: in treatment with the chemical insecticide, at 15 and 30 DAA, low infestation of nymphs and adults of M. fimbriolata was recorded; at 45, 60, 75 and 90 DAA, it was observed smaller infestations of leafhopper root where the fungus M. anisopliae was used. Thus, it is suggested to opt for the use of entomopathogenic fungi for the control of the leafhopper root on sugarcane.

Chemical and biological control of Mahanarva fimbriolata Stål, 1854 (Hemiptera: Cercopidae) in sugarcane producing regions of Mato Grosso do Sul