ABSTRACT The Crop-Livestock Integration system has sustainable potential. But pests such as the defoliating caterpillar Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae) can reduce the productivity of this system. The objective was to report transgenic maize and Brachiaria brizantha (A. Rich.) (Poaceae) plants attacked by S. frugiperda in the Crop-Livestock Integration system. Feroz VIP3 ® transgenic maize (SYN8A98 TLTG Viptera) and B. brizantha MG-5 Xaraés plants attacked by S. frugiperda were evaluated 20 days after planting, weekly and for 28 days. The transgenic maize plants were less attacked by S. frugiperda than those of B. brizantha. The negative impact of this pest on B. brizantha suggests the planning and adopting strategies for its control, such as the use of traps, resistant cultivars, and biological or chemical products, minimizing losses in animal production and, consequently, in human food.

ABSTRACT Sweet potato, Ipomoea batatas (L.) Lam (Convolvulaceae), is an essential crop for food security in developing countries. Euscepes postfasciatus (Fairmaire) (Coleoptera: Curculionidae) is one of the main pests of I. batatas in tropical and subtropical regions. It feeds on the tuberous roots of I. batatas and induces perforations tunnel-shaped with excrement. The objective of this study was to register, for the first time, the occurrence of E. postfasciatus in I. batatas in the municipality of Diamantina, Minas Gerais, Brazil. Individuals of E. postfasciatus were found in the larval, pupal and adult stages feeding on the roots, in the genotypes, Brasilândia Branca, Rubisol, UFVJM01, UFVJM02, UFVJM03, UFVJM04, UFVJM08, UFVJM18, UFVJM91, UFVJM291 and UFVJM526 in a greenhouse at the Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM). Euscepes postfasciatus injuries formed superficial and deep galleries with the presence of excrement and unpleasant odor. The record of E. postfasciatus in I. batatas in the municipality of Diamantina is important to develop local strategies for integrated pest management of the crop in the region.