
Na região do Bairro da Ilha, município de Salto de Pirapora, Estado de São Paulo, Brasil, procurou-se observar a utilidade do método de Gómez-Núñez, no selecionamento das casas a serem submetidas ao expurgo seletivo pela aplicação de BHC. Dos edifícios considerados como negativos à inspeção rotineira, foram selecionados 21 nos quais foram instaladas as caixas-abrigo. O resultado revelou a presença de Triatoma infestans em 4 casas e 2 anexos. Além disso, concluiu-se a observação do ecótopo artificial para atração de triatomíneo, e o seu exame, após demolição completa, revelou a presença de 2 adultos e 198 ninfas daquela espécie. Conclui-se pela deficiência da inspeção manual, com ou sem a utilização de substância desalojante, na seleção dos edifícios para o rociado. O método de Gómez-Núñez poderá trazer valiosa contribuição para a melhoria do critério de seleção. Chama-se ainda a atenção do possível poder de dispersão ativa do T. infestans que poderá atingir valores ponderáveis.
The Gómez-Núñez method was used for testing houses considered free of the Triatoma infestans infestation at the routine inspection made before the selective insecticide spraying (BHC). The test was made in the Bairro da Ilha area, County of Salto de Pirapora, São Paulo State, Brazil, and includes fifteen human houses and six domestic animals dwellings. After nine weeks, the results showed that four houses and two animal dwellings were infested by triatomids bugs. Besides this, the observation of an artificial ecotope (chicken house) constructed for atractting triatomids, was concluded after one and a half years. This last inspection was made by its complete destruction and two hundred bugs (two adults and one hundred ninety eight nymphs) were collected. So the defficiency of the house routine inspection for the selective insecticide spraying is concluded. Nevertheless, the Triatoma infestans seems to have an active dispersion power which must not be overlooked.
Triatomids, BHC^i2^sselective spray, Caixas de Gómez-Núñez, BHC^i1^sexpurgo selet, Gómez-Núñez method, Triatoma Infestans, Insect Vectors, Infestação domiciliar residual, House infestations, Chagas Disease, Triatomíneos^i1^sdisper, Triatominae, Brazil, Triatoma infestans
Triatomids, BHC^i2^sselective spray, Caixas de Gómez-Núñez, BHC^i1^sexpurgo selet, Gómez-Núñez method, Triatoma Infestans, Insect Vectors, Infestação domiciliar residual, House infestations, Chagas Disease, Triatomíneos^i1^sdisper, Triatominae, Brazil, Triatoma infestans
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