Acão de Inseticidas Organofosforados Utilizados no Controle de Leucoptera coffeella (Guérin-Mèneville) (Lepidoptera: Lyonetiidae) Sobre o Ácaro Predador Iphiseiodes zuluagai Denmark &amp; Muma (Acari: Phytoseiidae)

Fragoso, Daniel B.; Filho, Pedro Jusselino; Pallini, Ângelo; Badji, César Auguste

doi:10.1590/s1519-566x2002000300018

Cited by 17 publications

(11 citation statements)

References 11 publications

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“…As inclinações das curvas de concentração x mortalidade são parâmetros indicativos da ação tóxica dos óleos (FRAGOSO et al, 2002). Essa maior inclinação da curva de concentração x mortalidade do óleo de P. hispidinervum indica que pequena variação na concentração ou dose desse óleo provoca grande mortalidade do inseto alvo, quando comparado aos óleos essenciais de P. aduncum e T. nocturnum.…”

Section: Resultados E Discussõesunclassified

Propriedade inseticida dos óleos essenciais de Piper hispidinervum C. DC.; Piper aduncum L. e Tanaecium nocturnum (Barb. Rodr.) Bur. & K. Shum sobre Tenebrio molitor L., 1758

Fazolin

Estrela²,

Catani

et al. 2007

Ciênc. agrotec.

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RESUMOÓleos essenciais das piperáceas Piper aduncum L., Piper hispidinervum C. DC. e da bignoniácea Tanaecium nocturnum (Barb. Rodr.) Bur. & K. Shum foram avaliados para o controle de larvas de Tenebrio molitor L., 1758. Para a avaliação do efeito por contato em superfície contaminada, foram utilizados papéis-filtro impregnados com diferentes quantidades dos óleos essenciais. Para a avaliação do efeito tópico foram aplicados 5 mL de soluções com diferentes concentrações dos óleos sobre larvas de quinto instar do inseto. A taxa de mortalidade foi a variável utilizada para avaliar os experimentos. Todos os óleos essenciais apresentaram efeito inseticida sobre larvas de T. molitor, sendo que as respostas variaram em função da concentração utilizada, assim como do método de exposição do inseto. A toxicidade dos óleos essenciais foi elevada apresentando os seguintes valores de CL 50 : 0,045; 0,033 e 1,515 mL de óleo cm -2 para exposição por contato (papel filtro) aos óleos de P. hispidinervum, P. aduncum e T. nocturnum, respectivamente. Para a aplicação tópica, os valores da DL 50 foram de: 0,000025; 0,009 e 0,000015 mL de óleo mg de inseto -1 para os óleos essenciais de P. hispidinervum, P. aduncum e T. nocturnum, respectivamente. Resultados promissores para o emprego desses óleos essenciais como inseticidas foram obtidos utilizando-se concentrações acima de 3,0% (v v -1 ) para P. hispidinervum e 2,5% (v v -1 ) para P. aduncum e T. nocturnum. Termos para indexação:Pimenta longa, dilapiol, safrol, mandelonitrila, inseticidas botânicos. ABSTRACTEssential oils from Piper aduncum L., Piper hispidinervum C. DC. (Piperaceae) and Tanaecium nocturnum (Barb. Rodr.) Bur.& K. Shum (Bignoniaceae) were tested against Tenebrio molitor L., 1758 larvaes. Filter paper with different amounts of oils were employed for contact toxicity effects study. For topical effect study, aliquots of 5 mL of oils at different concentrations were applied on larvaes of the fifth instar. Mortality rate was used to evaluate the assays. All essential oils possessed insecticidal effect to T. molitor, but the responses varied according to oil concentration and method of exposure. The toxicities of essential oils to T. molitor were elevated, with LC 50 of 0.045, 0.033 and 1.515 mL of the oil/cm 2 for contact (filter-paper) applications of the P. hispidinervum, P. aduncum and T. nocturnum oil, respectively. For topical application the values of the LD 50 were: 0.000025, 0.009 and 0.000015 mL of the oil /mg of the insect, for P. hispidinervum, P. aduncum and T. nocturnum oil, respectively. The most promising results for the use of such oils as insecticide were obtained using concentrations above 3,0% (v v -1 ) for P. hispidinervum and 2,5% (v v -1 ) for P. aduncum and T. nocturnum essential oils.

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Section: Resultados E Discussõesunclassified

Propriedade inseticida dos óleos essenciais de Piper hispidinervum C. DC.; Piper aduncum L. e Tanaecium nocturnum (Barb. Rodr.) Bur. & K. Shum sobre Tenebrio molitor L., 1758

Fazolin

Estrela²,

Catani

et al. 2007

Ciênc. agrotec.

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“…Faria et al [269] have reported a green method using cloud point extraction and gas chromatography, for the extraction and determination of disulfoton [diethyl-S-{2-(ethylthio)ethyl}-phosphorodithioate], an insecticide and acaricide [270,271] for controlling the B. Mineiro in coffee cultivation [272,273], from surface water samples. The extraction was carried out in micellar solution of TX-114 with highest extraction efficiency of 91.4% at a concentration of 1.0% (w/v) of TX-114 and a pH range of 4.0-7.0.…”

Section: Preconcentration Of Pesticidesmentioning

confidence: 99%

Clouding behaviour in surfactant systems

Mukherjee

Padhan

Dash

et al. 2011

Advances in Colloid and Interface Science

159

106

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“…Similarly, Cho et al (1997) observed that deltamethrin was less toxic to adults and larvae of Harmonia axyridis Pallas (Coleoptera: Coccinellidae) than to Myzus malisuctus Matsumura and Aphis citricola Van Der Goot (Hemiptera: Aphididae). Fragoso et al (2002) tested the LC 99 of methyl parathion for Leucoptera coffeella (Guérin-Menéville) (Lepidoptera: Lyonetiidae) on Iphiseiodes zuluagai Denmark and Muma (Acari: Phytoseiidae) obtaining less than 20% mortality of the predatory mite. In contrast, this insecticide was highly toxic to Cotesia sp.…”

Section: Discussionmentioning

confidence: 99%

Conservation of natural enemies in brassica crops: comparative selectivity of insecticides in the management of Brevicoryne brassicae (Hemiptera: Sternorrhyncha: Aphididae)

Bacci

Picanço

Rosado

et al. 2009

Appl. Entomol. Zool.

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In the present study, we evaluate the toxicity of six insecticides to Brevicoryne brassicae (L.) (Hemiptera: Sternorrhyncha: Aphididae), predatory coleopterans Cycloneda sanguinea (L.) (Coccinellidae) and Acanthinus sp. (Anthicidae), and the hymenopteran parasitoid Diaeretiella rapae (McIntosh) (Braconidae, Aphidiinae). Late-instar nymphs of B. brassicae and adults of C. sanguinea, Acanthinus sp. and D. rapae were exposed to nine concentrations of acephate, deltamethrin, dimethoate, methamidophos, methyl parathion and pirimicarb. Selectivity, toxicity, and tolerance ratios were calculated from LC 50 values to determine insecticide toxicity to B. brassicae and natural enemies as well as insecticide tolerance of the natural enemies. Pirimicarb was highly selective to Acanthinus sp., C. sanguinea, and D. rapae. Dimethoate, methamidophos and methyl parathion also showed selectivity to C. sanguinea and Acanthinus sp., but not to D. rapae. Methamidophos was the least potent insecticide against B. brassicae exhibiting the highest LC 50 amongst the products tested and was more toxic to the D. rapae relative to the aphid. Overall, the predators Acanthinus sp. and C. sanguinea were more tolerant to the insecticides than was the parasitoid D. rapae. The role of insecticides in IPM systems of brassica crops is discussed based on the toxicity to B. brassicae and selectivity to natural enemies.

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Acão de Inseticidas Organofosforados Utilizados no Controle de Leucoptera coffeella (Guérin-Mèneville) (Lepidoptera: Lyonetiidae) Sobre o Ácaro Predador Iphiseiodes zuluagai Denmark & Muma (Acari: Phytoseiidae)

Cited by 17 publications

References 11 publications

Propriedade inseticida dos óleos essenciais de Piper hispidinervum C. DC.; Piper aduncum L. e Tanaecium nocturnum (Barb. Rodr.) Bur. & K. Shum sobre Tenebrio molitor L., 1758

Propriedade inseticida dos óleos essenciais de Piper hispidinervum C. DC.; Piper aduncum L. e Tanaecium nocturnum (Barb. Rodr.) Bur. & K. Shum sobre Tenebrio molitor L., 1758

Clouding behaviour in surfactant systems

Conservation of natural enemies in brassica crops: comparative selectivity of insecticides in the management of Brevicoryne brassicae (Hemiptera: Sternorrhyncha: Aphididae)

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