Controle e perdas provocadas por mahanarva fimbriolata (Stal) (Hemiptera: Cercopidae) em cana-de-açúcar
Carregando...
Data
2009-04
Título da Revista
ISSN da Revista
Título de Volume
Editor
Resumo
This work was developed with objective of evaluating the damages and the control
of the sugarcane root froghopper, Mahanarva fimbriolata. The field assay was carried out at
the farms of the Industry Jalles Machado S.A. in Goianésia, Goiás State (15o 18’ 45” S; 49o
03’ 45” W), at variety RB845257, 2nd cut. The experimental randomized blocks design was
employed at three places. The treatments were: thiamethoxam 250WG, 100, 150, 200 and 250
g/ha of active ingredient; carbofuran 350SC, 700 g/ha a.i.; Metarhizium anisopliae 1,0 L/ha
(CB-10 10 12 ), oil formulation and check. It was evaluated the sugarcane productivity and the
infestation level of nymphs of the sugarcane root froghopper until 84 days after the
application. The thiamethoxam insecticide presented effect at infestation up to 84 days after
the application, and they did not differ amongst themselves. The residual effect of the
carbofuran happened, on average, until 63 days after application. The M. anisopliae fungal
did not present effect on the infestation of nymphs during the evaluation period.
Thiamethoxam insecticide presented larger residual effect than other treatments in the
control, and it didn't differ at the applied dosages. There was inverse correlation between
levels of nymphs infestation and sugar-cane productivity.
Descrição
Palavras-chave
Controle químico, Saccharum offcinarum, Cigarrinha-da-raiz, Chemical control, Root froghopper, Saccharum offcinarum
Citação
PEIXOTO, Márcio Fernandes; FERNANDES, Paulo Marçal; SOARES, Rogério Augusto Bremm; BARBOSA, Rafael Vieira; OLIVEIRA, Romário Rodrigues Cunha de. Controle e perdas provocadas por mahanarva fimbriolata (Stal) (Hemiptera: Cercopidae) em cana-de-açúcar. Global Science and Technology, Rio Verde, v. 2, n. 1, p. 114-122, jan./abr. 2009.