Toxicological and ultrastructural analysis of the impact of pesticides used in temperate fruit crops on two populations of Chrysoperla externa (Neuroptera, Chrysopidae)

Moura, A. P. de; Carvalho, Geraldo Andrade; Cosme, Luciano V.; Alves, Eduardo; Botton, Marcos; Silva, Patrícia Sobral

doi:10.1590/s0085-56262011005000046

Cited by 10 publications

(7 citation statements)

References 19 publications

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“…Experiência dessa natureza vem sendo desenvolvida pelo setor de Entomologia da Universidade Federal Rural do Semi-Árido (UFERSA) desde 2008, idealizando, através do uso de parasitóides, inserir o controle biológico no sistema de manejo integrado de pragas do meloeiro, no município de Mossoró-RN. Relatos sobre predadores e parasitóides na cultura do meloeiro têm sido constatados por vários autores BEZERRA et al, 2010), mas é necessário conhecer mais sobre o papel que esses agentes benéficos desempenham na regulação de populações de insetos-praga (ARAUJO et al, 2008 (ROCHA et al, 2006;CARVALHO et al, 2011;MOURA et al, 2011), parasitóides (GOULART et al, 2008;CARMO et al, 2009;CARVALHO et al, 2010) e polinizadores (BAPTISTA et al, 2009;CARVALHO et al, 2009;THOMAZONI et al, 2009;LAURINO et al, 2011) destacam a importância de se usar esses produtos e, consequentemente, contribuir com a sustentabilidade da cultura.…”

Section: Resultsunclassified

Diagnóstico sobre o uso do MIP nas principais áreas produtoras de melão dos Estados do Rio Grande do Norte e Ceará.

et al. 2012

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Resumo -As regiões produtoras de melão (Cucumis melo L.) dos Estados do Rio Grande do Norte (RN) e Ceará (CE) destacamse por uma produção destinada tanto para o mercado interno quanto para o externo. Devido à necessidade de se produzir frutos de boa qualidade e de se reduzir os problemas causados por insetos pragas, os produtores devem utilizar estratégias de manejo econômica e ambientalmente sustentáveis. Objetivou-se com o presente trabalho caracterizar o perfil e o conhecimento dos pequenos e médios produtores, que exportam melão, sobre o MIP na cultura do meloeiro nas principais áreas produtoras dos municípios de Mossoró e Baraúna no Rio Grande do norte e Aracati no Ceará. Foram realizadas entrevistas, por meio de questionário semi -estruturado com 29 questões, a 25 produtores de melão nos municípios de Mossoró e Baraúna (RN) e Aracati (CE). Verificou-se que o manejo de pragas praticado por esses produtores está baseado na utilização das seguintes estratégias de controle: controle físico (uso de manta tipo TNT e quebra vento), cultural (rotação e destruição de restos de cultura) e químico (inseticidas sintéticos), método praticado por 100% dos produtores em algum momento do desenvolvimento das plantas. Contudo, o controle biológico ou qualquer prática conservacionista de inimigos naturais, ainda, é pouco utilizado por esses grupos de produtores, principalmente, devido à falta de conhecimento e treinamento técnico sobre o manejo de inimigos naturais em programas de controle de pragas. Palavras-chave -Cucumis melo. Controle de pragas. Mosca-minadora. Mosca-brancaAbstract -Melon farims in the states of Rio Grande do Norte (RN) and Ceará (CE), Brazil, are highlighted for their production at both local and international trade. In order to ensure the fruit quality and to reduce the damage caused by pest insects, farmers have to use different pest management strategies that are economically and environmentally sustainable. Therefore, the aim of the study was to determine the information level of small and medium exporting melon farmers by means of a questionnaire that explores the knowledge about the Integrated Pest Management (IPM). Interviews were conducted, by way of semi -structured questionnaire with 29 questions, with 25 melon farmers from the countryside of Mossoró and Baraúna (RN) and from the countryside of Aracati (CE). The pest management strategies used by these farmers is based on physical (use of Typar® fabric and windbreaks), cultural (rotation and destruction of crop residues) and chemical (synthetic insecticides) methods. The last method is practiced by all farmers at different times throughout cropping. However biological control or the conservation of natural enemy techniques, is not frequently used by these farmers, primarily due to lack of knowledge and technical training on the handling of beneficial agents used in pest control programs.

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Section: Resultsunclassified

Diagnóstico sobre o uso do MIP nas principais áreas produtoras de melão dos Estados do Rio Grande do Norte e Ceará.

et al. 2012

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“…Nonetheless, Moura et al (2011) showed 100% mortality of the third instar predator larvae to the organophosphates (g a.i./L of water), fenitrothion (0.75) and methidathion (0.4). Several factors may be associated with the discrepancies in the results such as the differences in the dosages of the insecticides used and origin of the populations of the treated green lacewings.…”

Section: Effect Of the Insecticides On The Third Instar Predator Larvaementioning

confidence: 98%

PHYSIOLOGICAL SELECTIVITY OF INSECTICIDES TO EGGS AND LARVAE OF PREDATOR Chrysoperla externa (HAGEN) (NEUROPTERA: CHRYSOPIDAE)

Soares

Carvalho

2018

C.Sci.

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Given the importance of green lacewings as agents of biological pest control, the present study aimed to evaluate the toxicity of insecticides used on coffee crops on the eggs and larvae of Chrysoperla externa. The insecticides tested were (g or mL a.i./L) chlorpyrifos (2.25), cartap hydrochloride (1.66), pyriproxyfen (0.33), profenofos/lufenuron (1.33/0.13), fenpropathrin (0.40), triazophos/deltamethrin (0.70/0.02) and zetacypermethrin (0.05). The insecticides, when applied directly on the eggs, caused no adverse effects on the duration of the embryonic period. After the application of triazophos/deltamethrin, pyriproxyfen, profenofos/lufenuron and zetacypermethrin, a reduction in egg viability was induced. The insecticides triazophos/ deltamethrin, chlorpyrifos, and profenofos/lufenuron reduced the survival of newly hatched first instar larvae from treated eggs. The first instar larvae that were treated directly were sensitive to the effects of the products used, with the effect of triazophos and chlorpyrifos/deltamethrin being high. The survival of the second instar larvae was reduced by zetacypermethrin, fenpropathrin, profenofos/lufenuron, and cartap hydrochloride. The products chlorpyrifos and triazophos/deltamethrin also did not allow second instar larvae survival. For treated third instar larvae, chlorpyrifos and triazophos/deltamethrin allowed survival of only 20.0 and 57.5%. Eggs and larvae of C. externa showed sensitiveness to insecticides chlorpyrifos and triazophos, being needed more studies in semi-field and field conditions for the confirmation or not of the toxicity aiming the conservation of this predator specie on the coffee agroecosystem.

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“…); C. jahnsoni (Amarasekare & Shearer ); C. externa (Bueno & Freitas ; Moura et al . , ; Silva et al . ; Castilhos et al .…”

Section: Introductionmentioning

confidence: 99%

Toxic effects of 12 pesticides on green lacewing, Chrysoperla nipponensis (Okamoto) (Neuroptera: Chrysopidae)

Ham

Lee²,

Jang³

et al. 2019

Entomological Research

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In this study, we formulated pesticides from 12 products, namely machine oil EC, imidacloprid WP, thiamethoxam WP, acetamiprid WP, methidathion EC, acequinocyl WP, clothianidin WP, deltamethrin EC, mancozeb WP, benomyl WP, difenoconazole WP, and bitertanol WP. These 12 pesticides were selected to determine their toxicity to green lacewing, Chrysoperla nipponensis, at the maximum field recommended dosage under laboratory conditions. Machine oil EC had extremely detrimental effects on eggs of C. nipponensis, resulting in 99% mortality (categorized as Class IV) when eggs were treated with machine oil EC by dipping. Mean larval corrected mortalities (%) for methidathion EC and deltamethrin EC were 62.5% (categorized as Class II) and 87.5% (categorized as Class III) respectively, when larvae were topically treated. As a result of dipping treatments of pupae with pesticides, machine oil EC and thiamethoxam WP were classified as slightly harmful (categorized as Class II). Methidathion EC showed high toxicity, resulting in a total effect index rate 100% (categorized as Class IV). Taxonomical notes of the genus Chrysoperla and C. nipponensis are reviewed here.

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Toxicological and ultrastructural analysis of the impact of pesticides used in temperate fruit crops on two populations of Chrysoperla externa (Neuroptera, Chrysopidae)

Cited by 10 publications

References 19 publications

Diagnóstico sobre o uso do MIP nas principais áreas produtoras de melão dos Estados do Rio Grande do Norte e Ceará.

Diagnóstico sobre o uso do MIP nas principais áreas produtoras de melão dos Estados do Rio Grande do Norte e Ceará.

PHYSIOLOGICAL SELECTIVITY OF INSECTICIDES TO EGGS AND LARVAE OF PREDATOR Chrysoperla externa (HAGEN) (NEUROPTERA: CHRYSOPIDAE)

Toxic effects of 12 pesticides on green lacewing, Chrysoperla nipponensis (Okamoto) (Neuroptera: Chrysopidae)

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