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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.

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RESUMO: Avaliou-se a resistência de quatro cultivares de amendoim de hábito de crescimento rasteiro e cinco cultivares de hábito de crescimento ereto ao dano de Stegasta bosquella (Chambers, 1875) (Lepidoptera: Gelechiidae) em condições de campo na safra das águas, nos anos 2009/2010 e 2010/2011. Os cultivares utilizados nos experimentos foram: IAC 147, IAC 213, IAC Caiapó e IAC Runner 886 (porte rasteiro) e IAC Tatu ST, IAC 5, IAC 8112, IAC 22 e IAC 88-1 (porte ereto). O delineamento adotado foi em blocos ao acaso, com parcelas subdivididas ao longo do tempo, e quatro repetições. Para a infestação de S. bosquella , foram realizadas avaliações semanais dos 18 aos 67 dias após a emergência (DAE), com contagem de lagartas e avaliações de danos. Para a contagem do número de brotos por planta, coletaram-se 5 plantas por parcela a partir dos 30, 60 e 90 DAE. Independentemente do cultivar, as maiores infestações de S. bosquella ocorrem dos 53 aos 67 DAE. O cultivar IAC Runner 886 apresenta a maior emissão de brotos apicais, uma característica desejável na defesa da planta em relação à S. bosquella .

Chickpeas (Cicer arietinum L.) belong to the Fabaceae family and are one of the most grown crops in the world and an important source of protein for humans. Spodoptera frugiperda (JE Smith) (Lepidoptera: Noctuidae) is a polyphagous pest that causes significant crop damage. The objective of this study was to examine antibiosis to S. frugiperda in chickpea genotypes. The following genotypes were studied: Jamu 96 and Blanco Sinaloa 92 (Mexico); Nacional 29 (Cuba); BG 1392 (Spain), and BRS Kalifa, BRS Cristalino, BRS Toro, Nacional 27, 004UP, 003UP, BRS Cícero, and BRS Aleppo (Brazil). The chickpea genotypes influenced the biological parameters of S. frugiperda, of which larval period, larval weight, and pupal period were most affected. Nacional 29 caused high mortality in the larval and pupal stages of S. frugiperda. The larvae on BRS Aleppo had the longest larval stage, lowest weight, and longest pupal stage. The genotypes Nacional 29, Nacional 27, and BRS Cícero showed antibiosis resistance to S. frugiperda. These genotypes could be used as a source of resistance to S. frugiperda in conjunction with other methods of pest control in integrated pest management programs for chickpea crops. These resistant genotypes could also be used as donor sources in breeding programs for insect resistance.