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최준근(Jun-Keun Choi),정태성(Tae-Sung Jung),문윤기(Youn-Gi Moon),함진관(Jin-Kwan Ham),황미란(Mi-Ran Hwang) 한국농약과학회 2010 농약과학회지 Vol.14 No.3
Field experiments were carried out to establish economic threshold for com borer (Ostrinia furnacalis (Guenee) on waxy com plants by examining the number of adult insects caught in pheromone traps and the injury levels of waxy corn 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.
서영호,조병욱,최준근,강안석,정병찬,Seo, Young-Ho,Cho, Byoung-Ouk,Choi, Jun-Keun,Kang, An-Seok,Jeong, Byung-Chan 한국유기농업학회 2009 韓國有機農業學會誌 Vol.17 No.2
상추의 가을재배에서 공기 교반 장치로 실내 온도와 습도를 조절해 주면 잿빛곰팡이병(B. cinerea)과 무름병(E. carotovora)이 감소되었으며, 수량도 30% 이상 증수되었다. 배추의 진딧물 밀도는 천적인 무당벌레(H. axyridis)와 콜레마니진디벌(A. colemani)을 방사하며 현저히 감소되었다. 난황유와 BT제를 혼합하여 살포하면 배추의 무름병(E. carotovora), 노균병(P. brassicae), 흰가루병(E. polygoni)의 발생과 배추좀나방(P. xylostella)과 파밤나방(S. exigua)의 발생 밀도가 현저하게 감소하였다. 파의 노균병(P. destructor) 발생은 Neem 추출물을 처리하여 무처리 대비 60% 이상 낮출 수 있었다. 파좀나방의 충해는 잎굴파리고치벌에 의해 23% 감소되었다. This study was conducted to establish agricultural practices to control diseases and insects for chemical pesticide-free cultivation of leafy vegetables. Two diseases, gray mold(Botrytis cinerea) and soft rot(Erwinia carotovora), on lettuce were reduced by controlling temperature and humidity using air-circulation fan. The aphidophagous lady beetle(Harmonia axyridis) and primary parasitoids(Aphidius colemani) showed activity to control aphids density on Chinese cabbage. Co-application of cooking oil and yolk mixture (COY) and BT(Bacillus thuringiensis) decreased diseases including soft rot(Erwinia carotovora), downy mildew(Peronospora brassicae Gaumann), and powdery mildew(Eryslphe polygoni), and insects such as diamondback moth(Plutella xylostella) and beet armyworm(Spodoptera exigua Hubner). Neem extract treatment reduced downy mildew(Peronospora destructor) on Welsh onion.