Genotypic response of brachiaria (Urochloa spp.) to spider mite (Oligonychus trichardti) (Acari: Tetranychidae) and adaptability to different environments

•The is a wide variation in resistance to the red spider mites Oligonyshus trichardti and yield potential in brachiaria.•Rainfall reduces spider mite infestation and increased biomass yield of the genotypes.•A few genotypes combined moderate resistance to O. trichardti and high biomass yield across different environments.