Evaluation of Imidacloprid and Cyantraniliprole for Suitability in Conservation Biological Control Program for<i>Orius insidiosus</i>(Hemiptera: Anthocoridae) in Field Pepper

Funderburk, Joe; Srivastava, Manish; Funderburk, Charles; McManus, Sarah

doi:10.1653/024.096.0131

Cited by 20 publications

(10 citation statements)

References 7 publications

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“…When a bumblebee ( Bombus terrestris ) colony was treated with IMD at a sublethal concentration, it significantly reduced the growth rate and production of queens and workers (Laycock et al, 2012; Whitehorn et al, 2012). In addition, there was a significant decrease in the fecundity of Orius insidiosus, Orius tristicolor, Hippodamia convergens , and Chrysoperla carnea , which are natural enemies of aphids, when treated with sublethal concentrations of IMD (Mizell and Sconyers, 1992; Sclar et al, 1998; Studebaker and Kring, 2003; Rogers et al, 2007; Funderburk et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Effect of Sublethal Doses of Imidacloprid on the Biological Performance of Aphid Endoparasitoid Aphidius gifuensis (Hymenoptera: Aphidiidae) and Influence on Its Related Gene Expression

et al. 2018

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The integrated pest management (IPM) strategy was developed and used in combination with pesticides and beneficial biological control agents. To further develop IPM efficiency, it is important to evaluate the side effects of pesticides on biological control agents. Aphidius gifuensis is one of the most important aphid natural enemies and has been successfully used to control Myzys persicae and other aphid species. Imidacloprid (IMD) is a popular pesticide used worldwide and is highly toxic to non-target arthropods. Here, we investigated the short-term sublethal toxicity of IMD in Aphidius gifuensis and its impact on the biological performance and gene expression of this parasitoid. We found that sublethal IMD doses had a significant negative effect on the life history traits of female A. gifuensis, including shortening the lifespan and lowering parasitic capacity. Moreover, exposure to sublethal IMD also adversely affected the response of A. gifuensis to aphid-infested plant volatiles. Based on the transcriptome analysis, we found that the exposure to sublethal IMD doses significantly affected expression of genes involved in the central nervous system, energy metabolism, olfactory, and detoxification system of A. gifuensis. RT-qPCR also revealed that short term expose to sublethal IMD doses significantly induced the gene expression of genes related to the central nervous system (nAChRa7, nAChRa9, TbH, OAR1, NFR, TYR, and DAR1), olfactory system (OR28 and IR8a1), and detoxification system (CYP49p3, CYP6a2, and POD), while it suppressed the expression of genes involved in the central nervous system (nAChRa4 and nAChRb1), olfactory system (Orco1, IR8a2, and GR1), and detoxification system (GST2). Furthermore, exposure to sublethal doses of IMD also significantly increased the activities of CarEs and POD, whereas we observed no influence on the activities of CAT, GST, and SOD. Our results indicate that sublethal IMD doses might adversely affect the biological performance of A. gifuensis by altering gene expression related to the function of olfactory, nervous, energy metabolism, and detoxification systems. Thus, how the use of pesticides directly affect insect population should be considered when used in conjunction with natural pest parasitoids in IPM strategies.

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Section: Introductionmentioning

confidence: 99%

Effect of Sublethal Doses of Imidacloprid on the Biological Performance of Aphid Endoparasitoid Aphidius gifuensis (Hymenoptera: Aphidiidae) and Influence on Its Related Gene Expression

et al. 2018

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“…Nas avaliações posteriores, aos 45, 60, 75 e 90 DAA, o tratamento que apresentou melhor resultado no controle de ninfas e adultos da cigarrinha-da-raiz foi obtido pelo fungo M. anisopliae (Figura 1 A e B produto (CARVALHO et al, 2011). Além disso, o inseticida Thiamethoxam, na dose recomendada, não é seletivo aos insetos não-alvo (ZHAO et al, 2012;FUNDERBURK et al, 2013), o que pode explicar a maior incidência de M. fimbriolata, nas parcelas, tratadas com esse produto. Por outro lado, isto não deve ser generalizado, por depender das condições climáticas, ingrediente ativo e modo de ação do produto químico.…”

Section: Resultsunclassified

Chemical and biological control of Mahanarva fimbriolata Stål, 1854 (Hemiptera: Cercopidae) in sugarcane producing regions of Mato Grosso do Sul

et al. 2015

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ResumoMahanarva fimbriolata (Stål, 1854) (Hemiptera: Cercopidae) pode causar prejuízos expressivos em cultivos de cana-de-açúcar sendo necessário empregar inseticidas para o controle das ninfas e adultos da cigarrinha. No entanto, não existem informações sobre a eficiência dos métodos de controle biológico e químico para regiões produtoras de cana-de-açúcar no estado de Mato Grosso do Sul -MS. Por isso, o objetivo da pesquisa foi avaliar a eficiência de inseticidas químico e biológico no controle cigarrinha-da-raiz, em um canavial, situado no município de Angélica -MS. O delineamento experimental foi composto por blocos casualizados, com três tratamentos e oito repetições.

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“…Similarly, no negative impact of this insecticide was detected on the populations of pirate bugs Orius insidiosus (Say) and O . pumilio (Champion) (Hemiptera: Anthocoridae), predators of thrips in pepper crops [ 55 ]. Likewise, minimum adverse effects of this newly developed insecticide were reported on Tamarixia triozae (Burks) (Hymenoptera: Eulophidae) an important parasitoid of the potato or tomato psyllid, Bactericera cockerelli (Sulc) (Hemiptera: Triozidae), a serious pest of many solanaceous vegetables [ 56 ].…”

Section: Discussionmentioning

confidence: 99%

Combined Non-Target Effects of Insecticide and High Temperature on the Parasitoid Bracon nigricans

et al. 2015

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We studied the acute toxicity and the sublethal effects, on reproduction and host-killing activity, of four widely used insecticides on the generalist parasitoid Bracon nigricans (Hymenoptera: Braconidae), a natural enemy of the invasive tomato pest, Tuta absoluta (Lepidoptera: Gelechiidae). Laboratory bioassays were conducted applying maximum insecticide label rates at three constant temperatures, 25, 35 and 40°C, considered as regular, high and very high, respectively. Data on female survival and offspring production were used to calculate population growth indexes as a measure of population recovery after pesticide exposure. Spinetoram caused 80% mortality at 25°C and 100% at higher temperatures, while spinosad caused 100% mortality under all temperature regimes. Cyantraniliprole was slightly toxic to B. nigricans adults in terms of acute toxicity at the three temperatures, while it did not cause any sublethal effects in egg-laying and host-killing activities. The interaction between the two tested factors (insecticide and temperature) significantly influenced the number of eggs laid by the parasitoid, which was the lowest in the case of females exposed to chlorantraniliprole at 35°C. Furthermore, significantly lower B. nigricans demographic growth indexes were estimated for all the insecticides under all temperature conditions, with the exception of chlorantraniliprole at 25°C. Our findings highlight an interaction between high temperatures and insecticide exposure, which suggests a need for including natural stressors, such as temperature, in pesticide risk assessments procedures.

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Evaluation of Imidacloprid and Cyantraniliprole for Suitability in Conservation Biological Control Program forOrius insidiosus(Hemiptera: Anthocoridae) in Field Pepper

Cited by 20 publications

References 7 publications

Effect of Sublethal Doses of Imidacloprid on the Biological Performance of Aphid Endoparasitoid Aphidius gifuensis (Hymenoptera: Aphidiidae) and Influence on Its Related Gene Expression

Effect of Sublethal Doses of Imidacloprid on the Biological Performance of Aphid Endoparasitoid Aphidius gifuensis (Hymenoptera: Aphidiidae) and Influence on Its Related Gene Expression

Chemical and biological control of Mahanarva fimbriolata Stål, 1854 (Hemiptera: Cercopidae) in sugarcane producing regions of Mato Grosso do Sul

Combined Non-Target Effects of Insecticide and High Temperature on the Parasitoid Bracon nigricans

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