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Issue:ISSN 2095-1353
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Your Position :Home->Past Journals Catalog->2016年53 No.4

Population dynamics of Liriomyza trifolii and Liriomyza sativae in Jiangsu
Author of the article:CHANG Ya-Wen1** SHEN Yuan2 DONG Chang-Sheng3 GONG Wei-Rong4TIAN Zi-Hua4 DU Yu-Zhou1***
Author's Workplace:1. School of Horticulture and Plant Protection & Institute of Applied Entomology, Yangzhou University, Yangzhou 225009, China; 2. Agriculture and Forestry Bureau of Binhu District, Wuxi 214071, China; 3. Agricultural Technology Extension Service Center ofGuangling District, Yangzhou 225009, China; 4. Plant Protection Station of Jiangsu Province, Nanjing 210036, China
Key Words:Liriomyza trifolii, Liriomyza sativae, species distribution, population dynamics, Yangzhou, Jiangsu
Abstract:

[Objectives]  Liriomyza trifolii and Liriomyza sativae are important horticultural and vegetable pests worldwide, and important invasive pests in China. Investigation of the population dynamics and crop damage caused by these two leafminers in Jiangsu could provide a scientific basis for their control. [Methods]  The occurrence, distribution, damage, and population dynamics, of L. trifolii and L. sativae were investigated in 2015 in Yangzhou. Leaves of different host plants containing live leafminers were brought back to the laboratory so that leafminer species could be identified after the adults emerged. Damage levels were categorized according to the number of the larvae on leaves. [Results]  L. sativae and L. trifolii were the two main Liriomyza pests in Jiangsu, L. sativae is mainly found in northern regions of Jiangsu, while L. trifolii is distributed across central and southern areas. The level of damage of both species in Jiangsu did not exceed level 3. Furthermore, we only found evidence of L. trifolii crop damage in Yangzhou  affecting host plants from six families and 12 species, including the Solanaceae, Leguminosae, Cucurbitaceae and Cruciferae. L. trifolii occurred from March to November and there were three peak periods of damage during the year. The most serious damage occurred from late July to early August. [Conclusion]  There were obvious geographical differences in the distribution of L. sativae and L. trifolii in Jiangsu. Monitoring both the population dynamics and damage caused by leafminers is essential to the effective control of these pests.

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