Winter cherry bug, Acanthocoris sordidus Thunberg (Hemiptera: Coreidae) is a pest of Solanaceous and Convolvulaceous crops and distributed in Taiwan, Japan, and Korea. Adult female generally lays eggs in cluster on host plant leaves. Most researches have been conducted in Japan, and it is regarded as a minor pest. In this study, we surveyed the seasonal population change of A. sordidus and its damages from May to September by visual count in experimental pepper fields located in Andong National University, where no pesticide was sprayed. Hatchability was measured using field-laid egg mass covered by nylon-meshed pouch. Potential disease transmission was confirmed in filed pepper fruits confined for a week with two adult A. sordidus inside nylon-meshed pouch. Adults and eggs of A. sordidus started to appear in 30th May and 10th June, respectively. Nymph populations were first found on 10th July. No eggs were found from 7th September when highest adult population (67/plant) was recorded. Hatchability was over 90% in the field. No disease transmission to pepper fruit was observed. We believe that A. sordidus would become a serious pest under a certain condition such as low level of insecticide use and climate change.

톱다리개미허리노린재[Riptortus pedestris (Fabricius) (Hemiptera: Alydidae)]의 방제를 위해서 집합페로몬트랩이 일부 사용되고 있으나 실제 방제 효과가 있는지에 대한 연구는 드믄 편이다. 2013년 안동지역 콩 경작지에서 집합페로몬트랩의 설치시기에 따른 노린재 방제 효과에 대한 연구 중 트랩설치가 콩의 재배 후반부에 톱다리개미허리노린재 밀도를 오히려 상승시키는 것을 발견하고, 이를 실험적으로 확인하기 위해 안동대학교 시험포에서 추가 연구를 수행하였다. 본 발표에서는 그 결과를 보고하고 토론하고자 한다.

꽈리허리노린재[Acanthocoris sordidus Thunberg (Hemiptera: Coreidae)]는 대만, 일본, 한국에 분포하며 고추, 가지 등의 가지과 식물의 주요 해충이다. 고추에서 꽈리허리노린재에 의한 주요 피해 부위를 알기 위해 작물내 분포를 조사하였다. 두 개의 무방제 시험포장에서 각각 8, 9월에 작물의 높이를 상부, 중부, 하부로 나누어 육안 조사한 결과 작물의 상부에서 노린재(알, 약충, 성충)의 76∼89%가 분포하였다. 고추 작물의 부위별 분포는 줄기에서 71∼85%로 가장 높았다. 발육단계별로는 알의 100%가 잎에서, 성충의 88%가 줄기에서 발견 되어 꽈리허리노린재 성충은 고추의 상단부 줄기에서 가장 많이 분포하고, 고추 과실에서는 거의 발견되지 않았다.

Riptortus pedestris is an important soybean pest in Korea and Japan. Aggregation pheromone traps were evaluated in 12 soybean fields in Andong using three treatments of trap installation, i.e., installation for whole cultivation period, installation up to September, and no installation. The number of R. pedestris (in all life stages) were not significantly different among the treatments until October, but its abundance significantly increased at mid October in the fields where traps were installed. Trap catch of R. pedestris was relatively higher in August while bug population was low in the fields. However, in fall, R. pedestris populations become abundant in the fields while trap catch was low. There was no significant difference in parasitism as well as seed and pod damage among the treatments. In conclusion, aggregation pheromone trap should’nt be used as control measure, but can be used as a monitoring tool of R. pedestris population up to August in soybean field.