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Revista Colombiana de Entomología

Print version ISSN 0120-0488
On-line version ISSN 2665-4385

Abstract

GARCIA, JOSÉ F.; PRADO, SIMONE S; VENDRAMIM, JOSÉ D.  and  M. BOTELHO, PAULO S.. Effect of sugarcane varieties on the development of Mahanarva fimbriolata (Hemiptera: Cercopidae). Rev. Colomb. Entomol. [online]. 2011, vol.37, n.1, pp.16-20. ISSN 0120-0488.

The sugarcane spittlebug, Mahanarva fimbriolata (Hemiptera: Cercopidae), is considered the most important pest of sugarcane harvested without the burning of trash, or green cane, in Brazil. The objective of this work was to compare the biology of M. fimbriolata on six sugarcane varieties: SP79-1011, SP80-1816, SP80-1842, SP81-3250, RB72454, and RB835486. The experiments were conducted at a temperature of 25 ± 1°C, RH of 70 ± 10%, and a photoperiod of 14:10 [L:D]. Variety RB72454 outperformed the rest, reducing the nymphal population that fed on its roots by 50%. With regard to adults, variety SP81-3250 allowed greater mean longevity of males (38 days) and females (51 days), greater mean oviposition period (46 days), and higher mean fecundity (1215 eggs/female); these parameters were statistically different from those obtained with other varieties. For the eggs, there was no significant effect of variety on developmental time or viability. Consequently, the variety SP81-3250 should be avoided in areas predisposed to the occurrence of M. fimbriolata.

Keywords : Plant resistance; Antibiosis; Tolerance; Saccharum.

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