참딱부리긴노린재의 발육, 산란, 포식에 미치는 온도의 영향

Abstract

Developmental characteristics of Geocoris pallidipennis were investigated at a constant temperature (, , , , and ), under long day illumination 16:8 (L:D) and constant relative humidity (). From egg to adulthood, the lower developmental threshold and the effective accumulative temperature were and 399.1 day-degree, respectively. The experimental results at were as follows. The egg period was 5.6 days (hatchability: 81.1%) and the nymphal period was 14.3 days (1st: 3.2, 2nd: 2.2, 3rd: 2.7, 4th: 2.7, 5th: 3.6). Female longevity was 33.8 days and the oviposition period was 29.2 days. Total egg production was 111.2 eggs and the maximum daily egg production was 14.8 eggs (in 7th days). However, although some eggs and nymphs developed at , G. pallidipennis could not develop at , The total egg production at was only 22.1 eggs. When G. pallidipennis was fed on Bemisia tabaci pupae, daily prey consumption by nymphs (1st, 3rd and 5th) and adults was 1.9, 7.3, 18.7 and 29.5, respectively.