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Economic Thresholds for Corn Borer on Waxy Corn  

Choi, Jun-Keun (Gangwon Provincial Agricultural Research & Extension Services)
Jung, Tae-Sung (Gangwon Provincial Agricultural Research & Extension Services)
Moon, Youn-Gi (Gangwon Provincial Agricultural Research & Extension Services)
Ham, Jin-Kwan (Gangwon Provincial Agricultural Research & Extension Services)
Hwang, Mi-Ran (Gangwon Provincial Agricultural Research & Extension Services)
Publication Information
The Korean Journal of Pesticide Science / v.14, no.3, 2010 , pp. 241-246 More about this Journal
Abstract
Field experiments were carried out to establish economic threshold for com borer (Ostrinia furnacalis (Guen$\e)) on waxy com plants by examining the number of adult insects caught in pheromone traps and the injury levels of waxy com which were artificially controlled. Adult com borers were lured into the pheromone traps during the whole growth period in five areas in Gangwon province including Chuncheon. The number of com borers trapped was the greatest in Chuncheon followed by Cheolwon and Hongcheon, and the same trend was observed for injury level of waxy com. Based on marketable yield data of waxy com plants related to the artificially-controlled injury levels at tassel stage, spray threshold was determined as the injury level of 11~15%, where the injury of com plants exceeded the economically admitting level.
Keywords
corn borer; Ostrinia furnacalis; pheromone trap; economic spray threshold;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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