Influence of Mahanarva fimbriolata (Stål) (Hemiptera: Cercopidae) injury on the quality of cane juice
Leonardo Lucas Madaleno,Gisele Cristina Ravaneli,Leandro E. Presotti,Miguel Angelo Mutton,Odair Aparecido Fernandes,Márcia Justino Rossini Mutton +5 more
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Evaluating the quality of sugarcane juice from plants attacked by spittlebugs found that chemical treatment was efficient in reducing spittlebug population, and elevated both stalk yield and juice pH, and the concentration of phenolic compounds increased with pest infestation.Abstract:
Mahanarva fimbriolata (Stal) is an important pest in Latin America and causes significant reduction in sugarcane productivity. There is no information regarding the effect of this pest on the quality of cane juice used for sugar and alcohol production. This work aimed at evaluating the quality of sugarcane juice from plants attacked by spittlebugs. The experiment was arranged in a completely randomized design with 15 replications, and comprised two treatments: control and chemical treatment with thiamethoxam. An average of 9.2 +/- 4.44 spittlebug nymphs m-1 were found in the plots prior to insecticide application. Nymphs were counted 18, 35, 55, and 82 days after the initial sampling (december/2003). During the mid growing season (July 2004), the juice was extracted from stalks and analyzed for Brix, Pol, RS, pH, fiber, purity, TRS, dextran, starch, and total phenolic compounds. Stalk yield was also measured. Chemical treatment was efficient in reducing spittlebug population, and elevated both stalk yield and juice pH. The accumulated infestation expressed as insect-days was significantly and negatively correlated to yield, Pol, pH, and purity. The concentration of phenolic compounds increased with pest infestation, while dextran and starch levels were not affected. The infestation of 2.4 and 7.3 nymphs m-1 day-1 caused reductions of 8.3% and 29.8% in yield; 1.9% and 5.8% in Pol; 0.4% and 1.1% in pH and 0.4% and 1.2% in purity, respectively, in comparison to areas where the pest population was extremely low (< 0.1 nymphs m-1).read more
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Book ChapterDOI
The Diversity of the True Hoppers (Hemiptera: Auchenorrhyncha)
Charles R. Bartlett,Lewis L. Deitz,Dmitry A. Dmitriev,Allen F. Sanborn,Adeline Soulier-Perkins,Matthew S. Wallace +5 more
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Characterization and Impact of the Sugarcane Borer on Sugarcane Yield and Quality
José A. de S. Rossato,Gustavo Henrique Gravatim Costa,Leonardo Lucas Madaleno,Márcia Justino Rossini Mutton,Leon G. Higley,Odair Aparecido Fernandes +5 more
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Biological control of pests as a key component for sustainable sugarcane production
TL;DR: Although Brazil is the leading producer of sugar and alcohol in the world, sugarcane is one of the few crops in Brazil where sustainability has been practiced since the 1970s, and biological control has been used for the control of froghoppers for many years.
Journal ArticleDOI
Combinations of Metarhizium anisopliae with Chemical Insecticides and their Effectiveness in Mahanarva fimbriolata (Hemiptera: Cercopidae) Control on Sugarcane
Samir Oliveira Kassab,Elisângela de Souza Loureiro,Camila Rossoni,Fabricio Fagundes Pereira,Rogério Hidalgo Barbosa,Daniele Perassa Costa,José Cola Zanuncio +6 more
TL;DR: The effectiveness of using either thiamethoxam or imidacloprid in combination with M. anisopliae to control M. fimbriolata nymph infestations and effectiveness rates is demonstrated.
Journal ArticleDOI
Resistance mechanisms of sugarcane cultivars to spittlebug Mahanarva fimbriolata
Leila Luci Dinardo-Miranda,Juliano Vilela Fracasso,Dilermando Perecin,Mariana Cecília de Oliveira,Diego Olympio Peixoto Lopes,Tiago Sabongi Izeppi,Ivan Antônio dos Anjos +6 more
TL;DR: The spittlebug Mahanarva fimbriolata (Stal) (Hemiptera: Cercopidae) is one of the most important pests of sugarcane in Brazil and measures for population control are currently restricted to the use of chemical insecticides and fungus Metarhizium anisopliae.
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Spittlebug infestation in sugarcane affects ethanolic fermentation
Gisele Cristina Ravaneli,Leonardo Lucas Madaleno,Leandro E. Presotti,Miguel Angelo Mutton,Márcia Justino Rossini Mutton +4 more
TL;DR: O ataque da cigarrinha-das-raizes influenciou negativamente a qualidade da cana-de-acucar, viabilidade celular e de brotos de leveduras e o teor alcoolico dos vinhos.