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	Provedor de dados BABT (1) Scientia Agricola (1) Autor Pereira,Alexandre Igor de Azevedo (2) Ramalho,Francisco de Sousa (2) Zanuncio,José Cola (2) Malaquias,José Bruno (1) Rodrigues,Karjoene Cassimiro Vilar (1) Souza,Jefferson Virgínio da Silva (1) Mais... Palavra-chave Biological control (1) Cotton (1) Cotton leafworm (1) Food consumption (1) Natural enemies (1) Nutrition (1) Predator (1) Pyrethroid (1) Selectivity (1) Stinkbug (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2010 (1) 2005 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Susceptibility of Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidea) to gamma-cyhalothrin under laboratory conditions Scientia Agricola Pereira,Alexandre Igor de Azevedo; Ramalho,Francisco de Sousa; Zanuncio,José Cola. Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae) is an important biological control agent of the cotton leafworm [Alabama argillacea (Hübner)] in the cotton crops in Brazil. The use of selective products such as pyrethroids has been emphasized in this agroecosystem. Then, the susceptibility of the predatory stinkbug P. nigrispinus to the pyrethroid insecticide gamma-cyhalothrin was studied in the laboratory. Nymphs and adults of the predator were exposed to seven concentrations of the gamma-cyhalothrin via topical contact and ingestion through treated water. The concentrations studied of this insecticide via topical application were relatively harmless for adults of P. nigrispinus (females: LC50 = 143.5 ppm a.i., and males: LC50 = 145.1 ppm a.i.)... Tipo: Info:eu-repo/semantics/article Palavras-chave: Cotton; Biological control; Pyrethroid; Selectivity; Natural enemies. Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000500012 Food extraction by the males of Podisus nigrispinus (Dallas) (Hemiptera: Pentatomidae) from cotton leafworm larvae BABT Pereira,Alexandre Igor de Azevedo; Ramalho,Francisco de Sousa; Rodrigues,Karjoene Cassimiro Vilar; Malaquias,José Bruno; Souza,Jefferson Virgínio da Silva; Zanuncio,José Cola. In this work, the effect of different densities (1, 3, 5, 7 and 9) of 3rd instar Alabama argillacea (Huebner) larvae on food consumption by Podisus nigrispinus (Dallas) males was evaluated. The densities established were converted to weight of prey offered: 13.4 mg (one larva), 33.3 mg (three larvae), 54.3 mg (five larvae), 81.8 mg (seven larvae), and 110.34 mg (nine larvae). The quantity of food consumed by P. nigrispinus increased with the prey density. The density of preys did not affect the time spent by the predator to ingest the food. The quantity of food extracted per minute was always higher in smaller densities and lower in higher densities. Males mean body weight did not differ statistically between the treatments tested, and weight gain was... Tipo: Info:eu-repo/semantics/article Palavras-chave: Cotton leafworm; Predator; Stinkbug; Food consumption; Nutrition. Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000500004 Registros recuperados: 2 Primeira ... 1 ... Última

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