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J Econ Entomol

Title:		Geographical Distribution of Ectropis grisescens (Lepidoptera: Geometridae) and Ectropis obliqua in China and Description of an Efficient Identification Method
Author(s):		Li ZQ; Cai XM; Luo ZX; Bian L; Xin ZJ; Liu Y; Chu B; Chen ZM;
Address:		"Key Laboratory of Tea Biology and Resource Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Science, Hangzhou, People's Republic of China"
Journal Title:		J Econ Entomol
Year:		2019
Volume:		112
Issue:		1
Page Number:		277 - 283
DOI:		10.1093/jee/toy358
ISSN/ISBN:		1938-291X (Electronic) 0022-0493 (Linking)
Abstract:		"Ectropis grisescens Warren 1894 (Lepidopotera: Geometridae) and Ectropis obliqua Prout 1915 (Lepidopotera: Geometridae) are the most destructive chewing pests in China's tea plantations. Ectropis grisescens sex pheromone lures and E. obliqua nucleopolyhedrosis virus (EoNPV) are two species-specific and effective bio-control technologies to control these pests. Because these two species are morphologically similar, tea growers are unable to discriminate them by visual inspection. Hence, determining whether to use E. grisescens sex pheromone lures or EoNPV is difficult without knowledge on the geographical distribution of these two Ectropis species in China. In this study, we developed an efficient identification method, which is considerably cheaper and faster than sequencing the cytochrome c oxidase I gene. Overall, 2,588 E. grisescens and E. obliqua samples, collected from 13 provinces and municipalities in China covering the major regions where these pests have been reported, were identified. All insect samples from southern Jiangsu Province were identified as E. obliqua. Both Ectropis species were mix-distributed at the Anhui-Zhejiang Province border areas, whereas E. grisescens was mostly collected from the other sampling sites. Thus, E. obliqua might be mainly distributed at the junction of Jiangsu, Anhui, and Zhejiang Provinces. In contrast, E. grisescens has a considerably wide distribution area and is the main lepidopteran pest in the tea plantations of China. Our results contribute to improve the management of E. grisescens and E. obliqua populations and provide new insights for further studies on these two species"
Keywords:		"Animals Base Sequence China Geography Moths/*classification/genetics Polymerase Chain Reaction Polymorphism, Restriction Fragment Length;"
Notes:		"MedlineLi, Zhao-Qun Cai, Xiao-Ming Luo, Zong-Xiu Bian, Lei Xin, Zhao-Jun Liu, Yan Chu, Bo Chen, Zong-Mao eng Research Support, Non-U.S. Gov't Validation Study England 2018/12/07 J Econ Entomol. 2019 Feb 12; 112(1):277-283. doi: 10.1093/jee/toy358"