Lethal and Sublethal Impacts of Acaricides on Tamarixia radiata (Hemiptera: Eulophidae), an Important Ectoparasitoid of Diaphorina citri (Hemiptera: Liviidae).

Autor:	Lira AC; Department of Entomology, Federal University of Lavras (UFLA), 37200-000, Lavras, MG, Brazil., Zanardi OZ; Department of Entomology and Acarology, College of Agriculture 'Luiz de Queiroz'/University of São Paulo (ESALQ/USP), 13418-900, Piracicaba, SP, Brazil., Beloti VH; Department of Entomology and Acarology, College of Agriculture 'Luiz de Queiroz'/University of São Paulo (ESALQ/USP), 13418-900, Piracicaba, SP, Brazil., Bordini GP; Department of Entomology and Acarology, College of Agriculture 'Luiz de Queiroz'/University of São Paulo (ESALQ/USP), 13418-900, Piracicaba, SP, Brazil., Yamamoto PT; Department of Entomology and Acarology, College of Agriculture 'Luiz de Queiroz'/University of São Paulo (ESALQ/USP), 13418-900, Piracicaba, SP, Brazil. pedro.yamamoto@usp.br., Parra JR; Department of Entomology and Acarology, College of Agriculture 'Luiz de Queiroz'/University of São Paulo (ESALQ/USP), 13418-900, Piracicaba, SP, Brazil., Carvalho GA; Department of Entomology, Federal University of Lavras (UFLA), 37200-000, Lavras, MG, Brazil.
Jazyk:	angličtina
Zdroj:	Journal of economic entomology [J Econ Entomol] 2015 Oct; Vol. 108 (5), pp. 2278-88. Date of Electronic Publication: 2015 Jul 03.
DOI:	10.1093/jee/tov189
Abstrakt:	The use of synthetic acaricides for management of pest mites may alter the efficacy of the ectoparasitoid Tamarixia radiata (Waterston) in biological control of Diaphorina citri Kuwayama, the vector of the bacteria associated with huanglongbing (HLB) in citrus orchards. We evaluated the toxicity of 16 acaricides that are recommended for the control of citrus-pest mites to T. radiata. Acrinathrin, bifenthrin, carbosulfan, and fenpropathrin caused high acute toxicity and were considered harmful (mortality >77%) to T. radiata. Abamectin, diflubenzuron, etoxazole, fenbutatin oxide, fenpyroximate, flufenoxuron, hexythiazox, propargite, spirodiclofen, and sulfur caused low acute toxicity and affected the parasitism rate and emergence rate of adults (F1 generation), and were considered slightly harmful to T. radiata. Dicofol and pyridaben did not affect the survival and action of the ectoparasitoid, and were considered harmless. In addition to its acute toxicity, carbosulfan caused mortality higher than 25% for >30 d after application, and was considered persistent. Acrinathrin, bifenthrin, fenpropathrin, fenpyroximate, propargite, and sulfur caused mortalities over 25% until 24 d after application and were considered moderately persistent; abamectin was slightly persistent, and fenbutatin oxide was short lived. Our results suggest that most acaricides used to control pest mites in citrus affect the density and efficacy of T. radiata in the biological control of D. citri. However, further evaluations are needed in order to determine the effect of these products on this ectoparasitoid under field conditions. (© The Authors 2015. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For Permissions, please email: journals.permissions@oup.com.)
Databáze:	MEDLINE
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