Resistance in 27 rice cultivars to sugarcane borer (Lepidoptera: Crambidae)

Abstract

Rice (Oryza sativa L.) is considered one of the most important crops in the world, and the sugarcane borer, Diatraea saccharalis Fabricius (Lepidoptera: Crambidae), is among the key pests damaging the crop in the Americas. The objective of this work was to identify rice genotypes as a source of resistance to D. saccharalis. Rice plants were infested in the greenhouse and subsequently evaluated for damage, larval weight and survival, and stem size. The cultivars ‘Bonança’, ‘Caripuna’, ‘IR 42’, ‘Canela de Ferro’, ‘SWA Norte’, ‘BR IRGA 409’, ‘Pepita’, ‘Serra Dourada’, ‘Araguaia’, ‘Xingú’, ‘Tangará’, and ‘Soberana’ showed antibiosis antixenosis, or both to D. saccharalis. These cultivars may be used as donor sources in the breeding program and used directly by Brazilian farmers as a component of rice-integrated pest management.