Regional susceptibilities of Rhopalosiphum padi (Hemiptera: Aphididae) to ten insecticides

Authors

  • Yayun Zuo Key Laboratory of Crop Pest Integrated Pest Management on the Loess Plateau of Ministry of Agriculture, College of Plant Protection, Northwest A&F University, 3 Taicheng Road, Yangling District, Shaanxi Province 712100, China
  • Kang Wang Key Laboratory of Crop Pest Integrated Pest Management on the Loess Plateau of Ministry of Agriculture, College of Plant Protection, Northwest A&F University, 3 Taicheng Road, Yangling District, Shaanxi Province 712100, China
  • Meng Zhang Key Laboratory of Crop Pest Integrated Pest Management on the Loess Plateau of Ministry of Agriculture, College of Plant Protection, Northwest A&F University, 3 Taicheng Road, Yangling District, Shaanxi Province 712100, China
  • Xiong Peng Key Laboratory of Crop Pest Integrated Pest Management on the Loess Plateau of Ministry of Agriculture, College of Plant Protection, Northwest A&F University, 3 Taicheng Road, Yangling District, Shaanxi Province 712100, China
  • Jaime C. Piñero Lincoln University, Cooperative Research & Extension, Allen Hall 212, 900 Chestnut St, Jefferson City, Missouri 65101, USA
  • Maohua Chen Key Laboratory of Crop Pest Integrated Pest Management on the Loess Plateau of Ministry of Agriculture, College of Plant Protection, Northwest A&F University, 3 Taicheng Road, Yangling District, Shaanxi Province 712100, China

Keywords:

bird cherry-oat aphid, insecticide resistance, susceptibility

Abstract

Rhopalosiphum padi (L.) (Hemiptera: Aphididae) is one of the most significant cereal pests worldwide. Control of R. padi has relied heavily on chemical insecticides. We sampled 12 populations of R. padi from 11 provinces in China and analyzed their regional susceptibilities to 10 insecticides by using the leaf dip method. The R. padi populations showed susceptibility or minor resistance to chlorpyrifos, malathion, thiamethoxam, beta-cypermethrin, acetamiprid, and pymetrozine, but minor to moderate resistance to bifenthrin, decamethrin, and abamectin. Correlation analysis indicated positive and significant correlations between R. padi resistance levels to thiamethoxam and beta-cypermethrin, between R. padi resistance levels to chlorpyrifos and 4 other insecticides (decamethrin, abamectin, acetamiprid, and beta-cypermethrin), and between R. padi resistance levels to acetamiprid and 3 other insecticides (decamethrin, thiamethoxam, and beta-cypermethrin). Due to the widespread and variable nature of resistance in R. padi, we strongly urge rotation of insecticide classes to delay the onset of high levels of resistance.

 

Resumen

Rhopalosiphum padi (L.) (Hemiptera: Aphididae) es una de las plagas de cereales más significativas en todo el mundo. El control de R. padi ha dependido en gran medida de los insecticidas químicos. Se recogieron muestras de 12 poblaciones de campo de R. padi de varias provincias de China y se analizaron las susceptibilidades regionales de las poblaciones de campo a 10 insecticidas mediante el método de inmersión foliar. Las poblaciones de R. padi mostraron susceptibilidad o resistencia menor al clorpirifos, malatión, tiametoxam, beta-cipermetrina, acetamiprid, y pimetrozina, pero menor resistencia a moderada a la bifentrina, decametrin, y abamectina. El análisis de correlación indicó correlaciones positivas y significativas entre los niveles de resistencia de R. padi al tiametoxam y beta-cipermetrina, entre los niveles de resistencia de R. padi al clorpirifos y otros 4 insecticidas (decametrin, abamectina, acetamiprid, y beta-cipermetrina), así como los niveles de resistencia de R. padi entre acetamiprid y otros 3 insecticidas (decametrin, tiametoxam, y beta-cipermetrina). Debido a la naturaleza generalizada y variable de la resistencia en R. padi, instamos firmemente a la rotación de las clases de insecticidas para retrasar la aparición de altos niveles de resistencia.

 

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Author Biographies

Yayun Zuo, Key Laboratory of Crop Pest Integrated Pest Management on the Loess Plateau of Ministry of Agriculture, College of Plant Protection, Northwest A&F University, 3 Taicheng Road, Yangling District, Shaanxi Province 712100, China

These 3 authors contributed equally to this work.

Kang Wang, Key Laboratory of Crop Pest Integrated Pest Management on the Loess Plateau of Ministry of Agriculture, College of Plant Protection, Northwest A&F University, 3 Taicheng Road, Yangling District, Shaanxi Province 712100, China

These 3 authors contributed equally to this work.

Meng Zhang, Key Laboratory of Crop Pest Integrated Pest Management on the Loess Plateau of Ministry of Agriculture, College of Plant Protection, Northwest A&F University, 3 Taicheng Road, Yangling District, Shaanxi Province 712100, China

These 3 authors contributed equally to this work.

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Published

2016-03-29

Issue

Vol. 99, No. 2 (June 2016)

Section

Research Papers

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