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The cupuassu (Theobroma grandiflorum (Willd ex Sprengel) K. Schum.) is a native tree from the tropical rainforest and one of the most important fruit trees in the Amazon region. Its pulp and seeds are widely used in the alimentary industry, as well as food by the people of northern Brazil. Among the factors that can compromise the production of cupuassu are the attack of diseases and insect pests. The aim of this work is to report the attack of a wood-borer lepidopteran in commercial cupuassu plantation located in the district of Nova Califórnia, Rondônia State, Brazil. In April 2019 an infestation of a wood-borer insect was observed causing the death of branches. Branches containing caterpillars in their inside were collected and taken to the Entomology Laboratory of the Embrapa Acre, where they were placed in a screened cage. After about 60 days, an adult insect emerged, which was identified as Magulacra nigripennata, a lepidopteran associated with cocoa and cupuassu plantations in that country. A random survey of 100 plants in the plantation area detected an infestation level of 36%, indicating the harmful potential of this pest to the cupuassu crops in the Amazon region. Made available in DSpace on 2020-10-07T09:14:35Z (GMT). No. of bitstreams: 1 27032.pdf: 986600 bytes, checksum: 4c0ca83d81f4763af2c6e44d2ccaeec6 (MD5) Previous issue date: 2020

Resumo. Uma alta infestacao de Corythaica passiflorae (Berg) (Hemiptera: Tingidae) foi observada em plantas de jilo ( Solanum aethiopicum L. - grupo gilo) e berinjela ( Solanum melongena L.), em uma area de cultivo comercial no municipio de Paraiso do Tocantins, estado do Tocantins. Os insetos popularmente conhecidos como percevejos-de-renda foram observados em um alto numero populacional, na face inferior das folhas, provocando injurias e consequente prejuizo economico, com elevada queda na producao e mortalidade de plantas. Alem disso, tambem foi observada a associacao do tingideo com plantas de ocorrencia espontânea, tais como a jurubeba ( Solanum paniculatum L.) e o joa ( Solanum viarum Dunal), comuns na regiao e, que podem contribuir para a disseminacao dos insetos em outras areas produtoras de solanaceas. Este trabalho registra a primeira ocorrencia de C. passiflorae em plantios comerciais de jilo e berinjela no estado de Tocantins, alem do registro de novas plantas hospedeiras desse tingideo (joa e jurubeba) no Brasil. Occurrence of Corythaica passiflorae (Berg) (Hemiptera: Tingidae) on commercial plantations of gilo and eggplant in Tocantins state, Brazil Abstract. A high infestation of Corythaica passiflorae (Berg) (Hemiptera: Tingidae) was observed in gilo plants ( Solanum aethiopicum L. – gilo group) and eggplant ( Solanum melongena L.) in a commercial plantation area in the municipality of Paraiso do Tocantins, Tocantins state, Brazil. The insects popularly known as lace bugs were observed in a high population on the underside of the leaves, causing damages and consequent economic loss, with a high drop in plant production and plant mortality. Therefore, the association of the tingid with plants of spontaneous occurrence, such as jurubeba ( Solanum paniculatum L.) and tropical soda apple ( Solanum viarum Dunal), common in the region, which may contribute to the dissemination of insects in other solanaceous producing areas. This work reports the first occurrence of C. passiflorae in commercial plantations of gilo and eggplant in Tocantins state, besides the registration of new host plants of this tingid (joa and jurubeba) in Brazil.