Recent Status of Insecticide Resistance in Asian Rice Planthoppers

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概要

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• Since 2005, outbreaks of rice planthoppers have occurred in East-Asian countries such as Vietnam, China and Japan. These outbreaks are closely related to the development of insecticide resistance in these regions. The susceptibilities of the brown planthopper (BPH) and the whitebacked planthopper (WBPH) to four insecticides were evaluated by a topical application method on insects collected from Japan, China, Taiwan, Vietnam, and Philippines in 2006. Species-specific changes in insecticide susceptibility were found in Asian rice planthoppers: imidacloprid resistance in BPH and fipronil resistance in WBPH. Topical LD50 values for imidacloprid in the BPH strains from East Asia (Japan, China and Taiwan) and Vietnam were significantly higher than those from the Philippines, suggesting that resistance to imidacloprid has developed in BPH in East Asia and Indochina, but not in the Philippines. Almost all the WBPH populations collected had extremely large LD50 values for fipronil, suggesting that resistance to this insecticide is widespread in WBPH populations throughout East and Southeast Asia. Possible reasons for species-specific development of insecticide resistance are identified and discussed.

• 独立行政法人　国際農林水産業研究センターの論文

著者

• Matsumura Masaya

  Research Team for Insect and Nematode Management, National Agricultural Research Center for Kyushu Okinawa Region

• SANADA-MORIMURA Sachiyo

  Research Team for Insect Pest and Nematode Management, National Agricultural Research Center for Kyushu Okinawa Region, National Agriculture and Food Research Organization

• MATSUMURA Masaya

  Research Team for Insect Pest and Nematode Management, National Agricultural Research Center for Kyushu Okinawa Region, National Agriculture and Food Research Organization

関連論文

• Virulence of long-term laboratory populations of the brown planthopper, Nilaparvata lugens (Stal), and whitebacked planthopper, Sogatella furcifera (Horvath) (Homoptera: Delphacidae), on rice differential varieties
• Distribution, host plants, and seasonal occurrence of the maize orange leafhopper, Cicadulina bipunctata (Melichar) (Homoptera: Cicadellidae), in Japan
• Development of near-isogenic lines for BPH25(t) and BPH26(t), which confer resistance to the brown planthopper, Nilaparvata lugens (Stal.) in indica rice 'ADR52'
• Characterization of brown planthopper strains based on their differential responses to introgressed resistance genes and on mitochondrial DNA polymorphism
• Recent Status of Insecticide Resistance in Asian Rice Planthoppers

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