Abstract

콩의 생식생장기에 노린재류의 밀도조사법을 개발하고자 하였다. 타락법, 포충망법 및 달관법으로 콩의 개화기(R2), 결협기(R4) 및 성숙기(R7)에 발생하는 톱다리개미허리노린재, 가로줄노린재, 풀색노린재, 알락수염노린재 및 썩덩나무노린재의 성충과 약충의 밀도를 조사한 결과 노린재류의 총 조사량은 타락법에서 5,214.2마리로 가장 많았으며, 다음은 달관법에서 2,581.8마리 였으며, 포충망법에서 103.1마리로 가장 적었다. 타락법과 달관법에 의한 노린재류의 총 조사량은 가로줄노린재 > 풀색노린재 > 썩덩나무노린재 > 톱다리개미허리노린재 > 알락수염노린재의 순서로 많았고, 발생량의 차이도 분명하였으나, 포충망법에 의한 노린재류의 총 조사량은 18-23마리로 발생량의 차이가 분명하지 않았다. 따라서 타락법에 의한 주요 노린재류의 조사밀도는 톱다리개미허리노린재 성충을 제외하곤 대체로 높았다. 하지만 타락법보다 불출법으로 콩의 개화시부터 성숙까지 톱다리개미허리노린재의 성충을 더 많이 조사할 수 있었고, 일중 조사량은 오후시간대보다 오전시간대에 많았다. 그러므로 콩포장에서 노린재류의 밀도조사법으로 톱다리개미허리노린재는 불출법으로, 가로줄노린재, 풀색노린재, 알락수염노린재 및 썩덩나무노린재는 타락법이 추천되었다. 이러한 2가지 조사법의 적용은 노린재류의 종간 행동적 특성 차이 때문이다. This study was conducted to develope the observing methods for density of stink bugs in soybean reproductive stage. The adults and nymphs of bean bug, Riptortus clavatus, red-banded shield bug, Piezodous hybneri, green stink bug, Nezara antennata, Sole bug, Dolycoris baccarum, and brown marmorated stink bug, Halyomorpha halys were observed by three observing methods such as beating, sweeping net, and visual counting methods in the full bloom (R2), full pod (R4) and beginning maturity (R7) of soybean. As a result, total number of stink bugs observed was the highest with 5,214.2 by beating method, and then was 2,581.8 by visual counting method, and was the lowest with 103.1 by sweeping net method. Total number of stink bugs observed by the beating and visual counting methods was P. hybneri, followed by N. antennata, H. halys, R. clavatus and D. baccarum with clear difference in observed number of each stink bugs while total number of stink bugs observed by sweeping net method was very low in the range of 18 to 23. Accordingly, the observed density of stink bugs exception of R. clavatus adult by beating method was generally high. However, the number of R. clavatus adult was more observed by flushing method than that by beating method from the beginning bloom (R1) to full maturity (R8), and was more observed at morning time than that at afternoon time. Therefore, two observation methods that flushing method for R. clavatus and beating method for the other stink bugs were recommended for the occurring density of stink bugs in soybean because both bean bug and pentatomidae stink bugs have distinct behavior characteristics such as flying and dropping.

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