Sublethal effects of diazinon, fenitrothion and chlorpyrifos on the functional response of predatory bug, Andrallus spinidens Fabricius (Hem.: Pentatomidae) in the laboratory conditions

Gholamzadeh-Chitgar, M.; Hajizadeh, Jalil; Ghadamyari, Mohammad; Karimi-Malati, Azadeh; Hoda, Hassan

doi:10.1016/j.jksus.2013.09.001

Cited by 15 publications

(7 citation statements)

References 23 publications

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“…: Pentatomidae) after pesticides application was observed. This abnormal behavior increased the time that takes for a predator to encounter and consume a single prey and reduced prey consumption (GholamzadehChitgar, Hajizadeh, Ghadamyari, Karimi-Malati, & Hoda, 2014). In this study, treated C. montrouzieri with the insecticides captured fewer prey compared to the control.…”

Section: Conclusion and Discussionmentioning

confidence: 61%

“…μg/L) showed a lower asymptote in the functional response curves compared to the control, without a change in the type of a functional response in all treated and untreated groups (Butt, Talib, & Khan, 2019). Other studies also reported a significant decrease in prey consumption when natural enemies exposed to different insecticides without change in the type of functional response (GholamzadehChitgar, Hajizadeh, Ghadamyari, Karimi-Malati, & Hoda, 2014;Amini Jam, 2017;Sharifian, Sabahi, & Bandani, 2017). In contrast, exposure to imidacloprid affected the type of the functional response of the predator Podisus nigrispinus Dallas.…”

Section: Conclusion and Discussionmentioning

confidence: 95%

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Effects of Mineral Oils, Palizin and Buprofezin on Functional and Numerical Responses of Predatory Ladybeetle Cryptolaemus montrouzieri (Mulsant, 1850)

CHITGAR¹

2022

jers

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Predatory coccinellid, Cryptolaemus montrouzieri Mulsant is an important biological agent in citrus orchards. The effect of six treatments included: two types of mineral oils, EC and mayonnaise at the concentration of 15 ml/L, buprofezin 0.75 ml/L, buprofezin+EC oil 0.5+5 ml/L, insecticidal soap palizin 2.5 ml/L, and water as the control were investigated on the functional and numerical responses of C. montrouzieri Mulsant under laboratory conditions. The experiment investigated predation rate of female adult coccinellids to varying densities (2, 4, 8, 16, 32 and 64) of mealybug pray, Pseudococcus citri Risso. The relationship between the rate of consumption and pray density was explored with a logistic regression. The results of logistic regressions revealed that the rate of prey consumption by the predator had risen as prey density increased, but eventually leveled off in both the control and all insecticide treatments (following Holling’s type II functional response). Comparison of attack rates showed that the parameter significantly decreased when the predator was exposed to all insecticides but palizin. Predator handling times for oil mayonnaise, buprofezin and buprofezin+ EC oil treatments were significantly longer than that of the control. The longest handling time (1.6065 h) and the lowest attack rate (0.0351 h_1) were estimated for buprofezin+oil and oil EC treatments, respectively. As prey density increased, increase in oviposition and decrease in the food exploitation efficiency were observed. The results confirmed that the functional response of C. montrouzieri was affected by tested compounds reducing the predatory potential. The exception was palizin that had a low effect on functional response events of treated C. montrouzieri.

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Section: Conclusion and Discussionmentioning

confidence: 61%

Section: Conclusion and Discussionmentioning

confidence: 95%

Effects of Mineral Oils, Palizin and Buprofezin on Functional and Numerical Responses of Predatory Ladybeetle Cryptolaemus montrouzieri (Mulsant, 1850)

CHITGAR¹

2022

jers

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“…This agrees with studies of He et al (2012) and Yao et al (2015) which showed that thiamethoxam and imidacloprid prolonged the handling time of Bemisia tabaci eggs by the predatory coccinellid beetle, Serangium japonicum at sublethal doses. However, a maximum handling time was observed when beetles were offered aphids treated with chlorpyrifos, followed by profenofos ( GholamzadehChitgar et al, 2014 ).…”

Section: Discussionmentioning

confidence: 99%

“…This greater negative effects of the two insecticide groups, may be associated with their pro-insecticide activities. Moreover, organophosphates and pyrethroids have lipophilic characteristic and can be adsorbed in the beetle cuticle very easily when topically applied ( GholamzadehChitgar et al, 2014 ; Costa 2015 ). This may be responsible for thegreater negative effects they have on insects.…”

Section: Discussionmentioning

confidence: 99%

Sublethal and transgenerational effects of synthetic insecticides on the biological parameters and functional response of Coccinella septempunctata (Coleoptera: Coccinellidae) under laboratory conditions

et al. 2023

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Synthetic insecticides have been an inevitable part of plant protection throughout the world. Sublethal effects of these chemicals on beneficial insect species are one of the contemporary issues these days. Using the age-stage, two-sex life table model, this study evaluated the sublethal and transgenerational effects of six synthetic insecticides (imidacloprid, thiamethoxam, lambda-cyhalothrin, cypermethrin, chlorpyrifos and profenofos) commonly applied to winter vegetables, on the fitness and predation of the seven-spotted ladybeetle, Coccinella septempunctata, which is an efficient predator of aphids worldwide. According to results, all insecticides at their sublethal doses (LC30) significantly suppressed the emergence of adults, adult weight, fertility and fecundity of the parental generation compared to control treatment. The larval stage was prolonged and oviposition, fecundity and total longevity of the adult beetles were decreased in unexposed progeny whose parents were exposed to sublethal doses of all insecticides. Moreover, the biological parameters of adults, including the intrinsic rate of increase (r), finite rate of increase (λ) and net reproductive rate (R0) were significantly reduced when exposed to sublethal doses of insecticides. The predation rate of the F1 generation adults was also decreased after exposure to the sublethal doses of insecticides. However, chlorpyrifos, profenofos, lambda-cyhalothrin and cypermethrin exhibited more deleterious effects on the fitness and population parameters of beetles than imidacloprid and thiamethoxam.

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“…Diversos trabajos han mostrado y evidenciado el efecto de los insecticidas convencionales (piretroides, organofosforados) comparados con los biorracionales, aseverando la toxicidad de los convencionales sobre todo en estados adultos tanto de parasitoides como depredadores (Ferrero et al 2000;Bayram et al 2010;Liu et al 2012;Wang et al 2012;Francesena 2008;Gholamzadeh Chitgar et al 2014;Abedi et al 2014). Para ser utilizados en programas de MIP es necesario determinar los efectos letales y subletales de estos insecticidas biorracionales hacia los EN.…”

Section: Introductionunclassified

Selectividad de insecticidas biorracionales hacia Pseudapanteles dignus (Hymenoptera: Braconidae), parasitoide de Tuta absoluta (Lepidoptera: Gelechiidae)

Ferraris¹

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La avispa endoparásita Pseudapanteles dignus (Hymenoptera: Braconidae) es un importante enemigo natural de la plaga clave del tomate, Tuta absoluta (Lepidoptera: Gelechiidae), en el Cinturón Hortícola de La Plata (provincia de Buenos Aires). Los daños causados por la plaga pueden llegar hasta el 80% si no se toman los recaudos necesarios. Para su control se utilizan insecticidas altamente tóxicos que generan contaminación ambiental, perjudican la presencia de los EN y promueven la generación de resistencia. Los insecticidas denominados biorracionales, constituyen una buena alternativa para el control por su modo de acción más específico hacia las plagas y más selectivo hacia los EN, resultando adecuados a las premisas del manejo integrado de plagas. En la actualidad hay evidencias de que algunos de estos productos generan efectos nocivos y que su acción sobre los controladores biológicos es muy variable. Por lo tanto, resulta indispensable su evaluación sobre P. dignus. El objetivo de esta tesis fue determinar la toxicidad de cinco insecticidas biorracionales (clorantraniliprol, benzoato de emamectina, acetamiprid, metaflumizona y azadiractina) utilizados para el control de la plaga, aplicados en sus máximas concentraciones, con dos métodos de exposición y en dos etapas de la vida de P. dignus: pupas (estado protegido; tópico) y adulto (estado desprotegido; ingestión). Acetamiprid causó una toxicidad elevada en ambos estadios mientras que clorantraniliprol resultó de baja toxicidad para ambos estadios evaluados. El resto de los insecticidas presentaron valores de toxicidad medios, destacándose azadiractina por su acción altamente negativa sobre las variables reproductivas evaluadas. Este estudio permitió detectar diferencias de impacto de los insecticidas sobre el parasitoide y se pudo determinar la opción más recomendable, previa evaluación a campo, para ser utilizada en manejos conservacionistas del control natural o en conjunto con agentes de control biológico, aplicados en programas de manejo integrado de plagas.

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Sublethal effects of diazinon, fenitrothion and chlorpyrifos on the functional response of predatory bug, Andrallus spinidens Fabricius (Hem.: Pentatomidae) in the laboratory conditions

Cited by 15 publications

References 23 publications

Effects of Mineral Oils, Palizin and Buprofezin on Functional and Numerical Responses of Predatory Ladybeetle Cryptolaemus montrouzieri (Mulsant, 1850)

Effects of Mineral Oils, Palizin and Buprofezin on Functional and Numerical Responses of Predatory Ladybeetle Cryptolaemus montrouzieri (Mulsant, 1850)

Sublethal and transgenerational effects of synthetic insecticides on the biological parameters and functional response of Coccinella septempunctata (Coleoptera: Coccinellidae) under laboratory conditions

Selectividad de insecticidas biorracionales hacia <i>Pseudapanteles dignus</i> (Hymenoptera: Braconidae), parasitoide de <i>Tuta absoluta</i> (Lepidoptera: Gelechiidae)

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