東方果實蠅生態調查技術之研究（一）田間密度快監測技術

Abstract

東方果實蠅共同防治體系目前採用「旬密度」方法監測，本研究目的旨在發展迅速且正確的快速監測技術，其原則為(1)時間不超過30-60分鐘，(2)所得資料與現行「旬密度」具相關性。進行試驗之期間為92年7月至12月，屬東方果實蠅正常活動季節，不受低溫的影響，試驗區涵蓋霧峰、芬園及草屯二個鄉鎮，全區共佈設68個測定點。 A 10-day density monitoring system for the oriental fruit fly, Bactrocera dorsalis, has been used for the area-wide control program in Taiwan since 1994. This monitoring method records average catch of fruit flies over ten days, which can reduce the day to day variation and provides a stable report. However, the 10-day monitoring data can not be applied in an urgent situation, and a rapid monitoring technique to complement the existed system has been developed. Major criteria for the rapid monitoring technique are shortening the survey time to less than one hour, and the obtained data should be comparable to current 10-day monitoring data.