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논문 기본 정보

자료유형
학술저널
저자정보
전정원 (강원대학교 농업생명과학연구원) 이윤서 (강원대학교 식물의학전공) 최선일 (강원대학교) 최재근 (강원도농업기술원) 김문종 (강원도농업기술원) 류시환 (강원농업기술원) 김주일 (강원대학교)
저널정보
강원대학교 농업생명과학연구원(구 농업과학연구소) 농업생명환경연구 농업생명환경연구 제36권 제2호
발행연도
2024.6
수록면
142 - 151 (10page)
DOI
10.22698/jales.20240013

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초록· 키워드

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Fall armyworm (FAW; Spodoptera frugiperda) is a major pest worldwide. Since its first confirmed domestic invasion in 2019, damage to crops such as corn has been steadily increasing. To provide basic data for the management of S. frugiperda, we compared the species’ host preference and nutritional compositions of corn varieties. Twelve varieties of corn were selected for the experiment: three commercially available sweet corn varieties, two popcorn varieties, three varieties used for processing purposes, and three pigmented varieties (Saekso 1, Saekso 4, Saekso 5, Oryun 2, Daeryuk 2, Dreamok, Gangilok, Arichal, Heukgeom 2, Miheukchal, Oryun popcorn, and Mibaek 2). To determine differences in host preference between breeds and environments, preferences were investigated at the population and individual levels. The damage rate was significantly lower in Saekso 5 after 3 days, Arichal after 5 days, and Heukgeom 2 on day seven after treatment. The individual-level experiment confirmed that when leaves were tested, Gangilok had the highest damage rate and Oryun 2 had the lowest. Conversely, when stems were used, Saekso 1 had the highest and Dreamok had the lowest rates. The experimental results were inconsistent at the population and individual levels, and the broad range of variation made it difficult to select varieties that S. frugiperda avoided. However, Mibaek 2 had the highest damage rate at a significant level up to 5 days after treatment at the population level. After analyzing the general components of the 12 varieties, determining a relationship between the components and preferences between varieties was not straightforward. Among the corn varieties currently cultivated, there are no varieties that S. frugiperda avoids feeding on; therefore, it is believed that it will be challenging to use ecological control depending on the corn variety. Thus, other control methods, such as chemical control, appear more effective.

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