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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
11/01/2008 |
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Data da última atualização: |
24/03/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
POLETTI, M.; MAIA, A. de H. N.; OMOTO, C. |
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Afiliação: |
Marcelo Poletti, ESALQ-USP; Aline de Holanda Nunes Maia, Embrapa Meio Ambiente; Celso Omoto, ESALQ-USP. |
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Título: |
Toxicity of neonicotinoid insecticides to Neoseiulus californicus and Phytoseiulus macropilis (Acari: Phytoseiidae) and their impact on functional response to Tetranychus urticae (Acari: Tetranychidae). |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
Biological Control, San Diego, v. 40, n.1, p. 30-36, 2007. |
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Idioma: |
Inglês |
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Conteúdo: |
Evaluations of possible impacts of insecticides on natural enemies are highly relevant in integrated pest management (IPM) programs. Because of the intensive use of neonicotinoid insecticides for controlling sucking pests, the objectives of this study were to evaluate the toxicity of these insecticides on the phytoseiid mites Neoseiulus californicus (McGregor) and Phytoseiulus macropilis (Banks) (Acari: Phytoseiidae)and their impact on the functional response to Tetranychus urticae Koch eggs. A residual-type bioassay was used to evaluate mortality of adult females of both predator mites exposed to acetamiprid (80 mg a.i./L), imidacloprid (280 mg a.i./L), and thiamethoxam (135 mg a.i./L). The impact of each insecticide on the functional response of the predators was carried out by spraying T. urticae eggs with insecticides at densities of 5, 10, 20, 40, 60, and 80 eggs per arena. All insecticides evaluated showed low toxicity on the adult females of both species. However, the insecticides differently affected the functional responses exhibited by N. californicus and P. macropilis. Although acetamiprid did not affect the predatory capacity of N. californicus, it was detrimental to the performance of P. macropilis from a density of 20 T. urticae eggs per arena. Imidacloprid changed the functional response parameters estimated for both species, with reductions of 55% and 87% relative to the peak consumption observed for N. californicus and P. macropilis, respectively. Thiamethoxam signi ficantly reduced P. macropilis consumption from a density of 40 T. urticae eggs per arena. Therefore, the use of neonicotinoid insecticides should be evaluated carefully in IPM programs. MenosEvaluations of possible impacts of insecticides on natural enemies are highly relevant in integrated pest management (IPM) programs. Because of the intensive use of neonicotinoid insecticides for controlling sucking pests, the objectives of this study were to evaluate the toxicity of these insecticides on the phytoseiid mites Neoseiulus californicus (McGregor) and Phytoseiulus macropilis (Banks) (Acari: Phytoseiidae)and their impact on the functional response to Tetranychus urticae Koch eggs. A residual-type bioassay was used to evaluate mortality of adult females of both predator mites exposed to acetamiprid (80 mg a.i./L), imidacloprid (280 mg a.i./L), and thiamethoxam (135 mg a.i./L). The impact of each insecticide on the functional response of the predators was carried out by spraying T. urticae eggs with insecticides at densities of 5, 10, 20, 40, 60, and 80 eggs per arena. All insecticides evaluated showed low toxicity on the adult females of both species. However, the insecticides differently affected the functional responses exhibited by N. californicus and P. macropilis. Although acetamiprid did not affect the predatory capacity of N. californicus, it was detrimental to the performance of P. macropilis from a density of 20 T. urticae eggs per arena. Imidacloprid changed the functional response parameters estimated for both species, with reductions of 55% and 87% relative to the peak consumption observed for N. californicus and P. macropilis, respectively. Thiamethox... Mostrar Tudo |
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Palavras-Chave: |
Phytoseiulus macropilis. |
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Thesagro: |
Ácaro; Controle Integrado; Impacto Ambiental; Inseticida; Predador; Tetranychus Urticae; Toxidez. |
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Thesaurus Nal: |
Neoseiulus californicus. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02543naa a2200253 a 4500
001 1015903
005 2023-03-24
008 2007 bl uuuu u00u1 u #d
100 1 $aPOLETTI, M.
245 $aToxicity of neonicotinoid insecticides to Neoseiulus californicus and Phytoseiulus macropilis (Acari$bPhytoseiidae) and their impact on functional response to Tetranychus urticae (Acari: Tetranychidae).$h[electronic resource]
260 $c2007
520 $aEvaluations of possible impacts of insecticides on natural enemies are highly relevant in integrated pest management (IPM) programs. Because of the intensive use of neonicotinoid insecticides for controlling sucking pests, the objectives of this study were to evaluate the toxicity of these insecticides on the phytoseiid mites Neoseiulus californicus (McGregor) and Phytoseiulus macropilis (Banks) (Acari: Phytoseiidae)and their impact on the functional response to Tetranychus urticae Koch eggs. A residual-type bioassay was used to evaluate mortality of adult females of both predator mites exposed to acetamiprid (80 mg a.i./L), imidacloprid (280 mg a.i./L), and thiamethoxam (135 mg a.i./L). The impact of each insecticide on the functional response of the predators was carried out by spraying T. urticae eggs with insecticides at densities of 5, 10, 20, 40, 60, and 80 eggs per arena. All insecticides evaluated showed low toxicity on the adult females of both species. However, the insecticides differently affected the functional responses exhibited by N. californicus and P. macropilis. Although acetamiprid did not affect the predatory capacity of N. californicus, it was detrimental to the performance of P. macropilis from a density of 20 T. urticae eggs per arena. Imidacloprid changed the functional response parameters estimated for both species, with reductions of 55% and 87% relative to the peak consumption observed for N. californicus and P. macropilis, respectively. Thiamethoxam signi ficantly reduced P. macropilis consumption from a density of 40 T. urticae eggs per arena. Therefore, the use of neonicotinoid insecticides should be evaluated carefully in IPM programs.
650 $aNeoseiulus californicus
650 $aÁcaro
650 $aControle Integrado
650 $aImpacto Ambiental
650 $aInseticida
650 $aPredador
650 $aTetranychus Urticae
650 $aToxidez
653 $aPhytoseiulus macropilis
700 1 $aMAIA, A. de H. N.
700 1 $aOMOTO, C.
773 $tBiological Control, San Diego$gv. 40, n.1, p. 30-36, 2007.
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| 1. |  | BRASILEIRO, B. P.; MENDES, T. O. de P.; PETERNELLI, L. A.; SILVEIRA, L. C. I. da; RESENDE, M. D. V. de; BARBOSA, M. H. P. Simulated individual best linear unbiased prediction versus mass selection in sugarcane families. Crop Science, v. 56, n. 2, p. 570-575, Mar./Apr. 2016.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
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