【摘要】 笔者于2005~2007年采用在果园中定点观察、采集标本回实验室制片后通过显微镜进行形态观察等方法对石榴新害虫黄蓟马Thrips flavus Schrank的生物学特性进行了系统研究。结果表明,黄蓟马在四川省凉山州1年发生17~19代,有较为明显的世代重叠现象;越冬虫态为成虫和若虫;温、湿度对石榴黄蓟马生长发育有显著影响,干旱季节往往猖獗为害,多雨季节则对其生长发育不利,其发育最适温度范围为25~30℃。更多还原

【Abstract】 Thrips flavus Schrank is a new pest on Punica Granatum trees.Its biological characteristics was studied during 2005 to 2007.The results showed that the pest produced 17 to 19 generations with generation-overlapping in one year in Liangshan Prefecture,and overwinters as nymphs and adults.The results also indicated that temperature and humidity had a significant impact on the pest’s growth and development.Droughts increased its damage on Punica Granatum trees,raineness was adverse factor for its growth,and the optimal temperature of its development ranged from 25℃ to 30 ℃.更多还原