Long-term field insecticide susceptibility data and laboratory experiments reveal evidence for cross resistance to other neonicotinoids in the imidacloprid-resistant brown planthopper Nilaparvata lugens
Journal
Pest management Science
Journal Volume
76
Journal Issue
2
Pages
480-486
Date Issued
2019-08
Author(s)
Tomohisa Fujii
Sachiyo Sanada-Morimura
Takaho Oe
Manami Ide
Dinh Van Thanh
Ho Van Chien
Phan Van Tuong
Phung Minh Loc
Le Quoc Cuong
Ze-Wen Liu
Zeng-Rong Zhu
Jian-Hong Li
Gang Wu
Gerardo F Estoy Jr
Shoji Sonoda
Masaya Matsumura
Abstract
BACKGROUND Long-term monitoring data is helpful to understand the fluctuation of susceptibility and pattern of cross resistance in insecticide resistance management. After the occurrence of imidacloprid resistance, the brown planthopper (BPH) has gradually developed resistance to thiamethoxam and clothianidin since 2010, but not to dinotefuran and nitenpyram. Here, we analyzed susceptibilities data of five neonicotinoids during 2005-2017 in East Asia and Vietnam to conduct cross-resistance patterns among neonicotinoids. To determine the factors of development of cross resistance in laboratory bioassays, we used the imidacloprid resistant and control strains that were selected from filed populations in the Philippines and Vietnam. RESULTS The Linear Mixed Models (LMM) analyses of insecticide susceptibility data showed that the slope values of imidacloprid resistance effects were 0.68 and 1.09 for resistance to thiamethoxam and clothianidin, respectively. Laboratory bioassay results showed that the LD50 values for thiamethoxam and clothianidin in resistant strains (1.4-5.5 mu g g(-1)) were 3.2-16.4 times higher than those in the control strains (0.28-1.5 mu g g(-1)). However, the increase in the LD50 values for imidacloprid was not related to that for dinotefuran and nitenpyram based on the results of the LMM analysis and laboratory bioassay. CONCLUSION Our results demonstrate that the development of imidacloprid resistance result in strong-cross resistance to some neonicotinoids, thiamethoxam and clothianidin, but not to others, dinotefuran and nitenpyram. We anticipate that our findings will be a starting point for understanding mechanism of the different trend of cross resistance by analyzing long-term susceptibility data and laboratory bioassays in insect pests. (c) 2019 Society of Chemical Industry
Subjects
cross resistance
laboratory selection
insecticide resistance management
imidacloprid
nilaparvata lugens
Publisher
John Wiley & Sons Ltd.
Type
journal article