Identification and damage of the bluegrass webworm moth, <em>Parapediasia</em> <em>teterrella</em> (Zincken) (Lepidoptera: Crambidae), a new invasive pest on lawns in Shanghai, Eastern China
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ACTA ENTOMOLOGICA SINICA  2013, Vol. 56 Issue (9): 1020-1025    DOI:
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Identification and damage of the bluegrass webworm moth, Parapediasia teterrella (Zincken) (Lepidoptera: Crambidae), a new invasive pest on lawns in Shanghai, Eastern China
GAO Lei1, JU Rui-Ting1, DING Jun-Jie2, XU Ying1,*, WANG Jian-Guo2,*
 (1. Department of Plant Protection, Shanghai Landscape Gardening Research Institute, Shanghai 200232, China; 2. Department of Plant Protection, School of Agronomy, Jiangxi Agricultural University, Nanchang 330045, China)
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Abstract An invasive insect species on turfgrasses (Cynodon dactylon) in lawns is newly recorded in Shanghai, Eastern China. In the current investigations, we determined the taxonomic status, host plants and damages caused by this species. The species was identified based on morphological comparison, and then confirmed by the sequencing and comparison of mitochondrial cytochrome oxidase I (COI) gene. Both morphological and molecular  identification indicated that the newly invaded species is the bluegrass webworm moth, Parapediasia teterrella, a moth native to North America. Field investigation showed that the species was widely distributed in Shanghai and caused serious damages to turfgrasses, especially C. dactylon. In some parks, the maximum population density of this pest reached to 740 individuals/m2. It is believed that this insect species should be listed as a new invasive pest in China due to its exotic and established characteristics as well as serious economic effects in the new regions. Therefore, it is urgently necessary to focus on the integrated management of newly introduced P. teterrella in order to reduce its threat to turfgrasses and gardening landscapes in China.
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Key wordsParapediasia teterrella   lawn   invasive pest   morphology   molecular identification   new record   Cynodon dactylon     
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. Identification and damage of the bluegrass webworm moth, Parapediasia teterrella (Zincken) (Lepidoptera: Crambidae), a new invasive pest on lawns in Shanghai, Eastern China[J]. ACTA ENTOMOLOGICA SINICA, 2013, 56(9): 1020-1025.
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