Resumo -O objetivo deste trabalho foi avaliar a reação de genótipos de arroz irrigado ao dano causado por percevejos adultos (Oebalus spp., Hemiptera: Pentatomidae), confinados nas panículas, durante os períodos de desenvolvimento e maturação das espiguetas. Dez genótipos foram comparados pelas perdas quantitativas, qualitativas e totais provocadas por O. poecilus, no primeiro e segundo experimentos de campo, respectivamente. Paralelamente, cinco genótipos do primeiro experimento foram comparados quanto às perdas quantitativas causadas por O. ypsilongriseus. Ocorreu reação significativamente diferente entre os genótipos com relação às duas espécies de percevejo. O. poecilus causou uma perda geral média, nos dois experimentos, de 52,7%. A porcentagem média de perda total foi maior em Metica 1 e CNA 7545, e menor, na linhagem CNA 8033.Termos para indexação: Oryza sativa, espigueta, perda, inseto. Evaluation of damages caused by Oebalus spp. in irrigated rice genotypesAbstract -The objective of this study was to evaluate the reaction of irrigated rice genotypes to the damage caused by adult paddy bugs (Oebalus spp., Hemiptera: Pentatomidae) during spikelet development and maturation. Quantitative and qualitative losses, as well as total loss, caused by O. poecilus were compared among ten genotypes in the first and second field experiments, respectively. At the same time, five genotypes, in the first experiment, were also compared to damage caused by O. ypsilongriseus. Significant differences were observed among the evaluated genotypes in relation to reaction to insect species. For both experiments, the overall average loss caused by O. poecilus was 52.7%. The average total loss was greater for Metica 1 and CNA 7545 and smaller for CNA 8033.
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