静岡県の露地栽培キクおよびその周辺雑草におけるクロゲハナアザミウマの翅型

抄録

In 2015–2016, we investigated the wing forms of adult females of Thrips nigropilosus collected from chrysanthemums and nearby weeds in open fields in Shizuoka Prefecture, Central Japan. At all collection sites, the proportion of brachypterous female adults increased in October and February. Therefore, the populations collected in this study were noted to be brachypterous under a short-day photoperiod. Additionally, the proportion of individuals entering reproductive diapause was higher than that under long-day photoperiods.