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	Provedor de dados 117 (1) 52 (1) Autor Sahayaraj,Kitherian (2) Jeeva,Y. Mary (1) Kalidas,Subramanian (1) Tomson,Majesh (1) Palavra-chave Cotton pest (1) Cotton pests (1) Functional response (1) Nymphicidal (1) Ovipositional (1) Pest management (1) Reduviid predator (1) Seaweed (1) Stage preference (1) Mais... Tipo do documento Info:eu-repo/semantics/article (1) Journal article (1) Ano 2012 (2) País Brazil (1) Chile (1) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Stage preference and functional response of Rhynocoris longifrons (Stål) (Hemiptera: Reduviidae) on three hemipteran cotton pests 52 Sahayaraj,Kitherian; Kalidas,Subramanian; Tomson,Majesh. In this work, the stage preference and functional response of the indigenous reduviid bug Rhynocoris longifrons feeding on five different densities of the cotton aphid Aphis gossypii, Phenacoccus solenopsis, and Dysdercus cingulatus was examined in Petri dish arenas containing cotton leaves under laboratory conditions. The reduviid predator exhibited a Type II functional response at all hemipteran pests evaluated when data were fit to Holling's disc equation. Predatory rate gradually increased while the predator grew older and adults consumed maximum number of D. cingulatus and P. solenopsis. An opposite trend was observed, while the reduviid was provided with Aphis gossypii. The rate of attack on P. solenopsis was quite low but fairly consistent, with the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Cotton pests; Functional response; Reduviid predator; Stage preference. Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132012000500013 Nymphicidal and Ovipositional Efficacy of Seaweed Sargassum tenerrimum (J. Agardh) against Dysdercus cingulatus (Fab.) (Pyrrhocoridae) 117 Sahayaraj,Kitherian; Jeeva,Y. Mary. We investigated the role of a brown seaweed alga, Sargassum tenerrimum (J. Agardh), against Dysdercus cingulatus (Fab.), which is an economically important cotton pest in many parts of Asia. Sargassum tenerrimum has been used as a source of fertilizers and drugs, but there is no information available in the literature about its use in ecofriendly pest management. The impact of benzene (BN), chloroform (CH), and a mixture of benzene and chloroform (BNCH) extracts, as well as two chromatographic fractions of BNCH (FR1 and FR2) were investigated for their insecticidal and ovipositional properties against D. cingulatus. The BE extract showed the best insecticidal activity (LC50 = 0.009%), higher than BNCH (LC50 = 0.021%) and CH extracts (LC50 = 0.2481%), and... Tipo: Journal article Palavras-chave: Cotton pest; Nymphicidal; Ovipositional; Seaweed; Pest management. Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000100024 Registros recuperados: 2 Primeira ... 1 ... Última

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