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http://dx.doi.org/10.5656/KSAE.2011.07.0.32

Seasonal Occurrence and Damage of Geometrid Moths with Particular Emphasis on Ascotis selenaria (Geometridae: Lepidoptera) in Citrus Orchards in Jeju, Korea  

Choi, Kyung-San (Agricultural Research Center for Climate Change, National Institute of Horticultural & Herbal science, Rural Development Administration)
Park, Young-Mi (Jungbu Regional Office, National Plant Quarantine Service)
Kim, Dong-Hwan (Agricultural Research Center for Climate Change, National Institute of Horticultural & Herbal science, Rural Development Administration)
Kim, Dong-Soon (Majors in Plant Resource Sciences & Environment, Jeju National University)
Publication Information
Korean journal of applied entomology / v.50, no.3, 2011 , pp. 203-208 More about this Journal
Abstract
This study was conducted to evaluate Geometridae (Lepidoptera) species as pests and the damage they cause in citrus orchards in Jeju, Korea. Seven geometridae species occurred in citrus orchards: Ascotis selenaria, Ectropis excellens, Menophra senilis, Biston panterinaria, Ourapteryx nivea, Odontopera arida and Hypomecis punctinalis. Among them, A. selenaria was most abundant, followed by E. excellens and M. senilis. Most Geometridae larvae fed on citrus leaves, but A. selenaria larvae ate fruits and leaves. Fruit damage of Citrus unshiu appeared as gnawed scars caused by young larvae feeding on fruit surface. Fruit damage on Shiranui fruits appeared as a wide hole or deep scars caused by feeding by mature larvae (6th instar). Citrus leaves damage due to Geometridae larvae was high during May to June. Fruit damage started in late June as the spring-shoots of citrus hardened and increased sharply in late July. In the field experiment, fruit damage in the late season reached 4.2% in both 2008 and 2009 and reached 5.2% in 2010. In citrus orchards, A. selenaria larvae started to appear in mid-May and their populations peaked in mid June, late July, and early to mid-September. Adult males of A. selenaria had a maximum peak in mid-May, and two other peaks in early to late July and late August to early September. A. selenaria male adults were collected in a pheromone traps constantly throughout Jeju Island.
Keywords
Citrus; Geometridae; Ascotis selenaria; Fruit damage; Occurrence peak;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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