可可广翅蜡蝉的行为节律观察

Behavior Rhythm of Ricania cacaonis

为进一步做好可可广翅蜡蝉的预测预报及防治工作,采用室内饲养观察的方法对其羽化、交配、产卵的行为及节律进行研究,并对其田间产卵特征进行调查。结果表明:可可广翅蜡蝉成虫羽化发生在晚上和凌晨,白天未见羽化;成虫交配主要发生在白天,晚上很少交配,凌晨未见;成虫全天均可产卵,高峰期集中在上午与凌晨;田间主要将卵产在茎粗为1.5mm左右的嫩茎上,产卵深度约0.9mm,产卵刻痕主要集中在距顶梢3cm范围,平均每刻痕卵量约为11粒。

The behavior and rhythm of emergence,mating and oviposition of R.cacaonis were observed by indoor raising method and the oviposition feature in field was investigated to further complete forecasting and control of R.cacaonis well.Results：The emergence of R.cacaonis adults occurs at night and before dawn.The mating behavior of R.cacaonis adults happens in the day mainly.R.cacaonis adults lay eggs whole day and the peak time concentrates in the morning and before dawn.R.cacaonis adults mainly lay eggs in young stems with 1.5mm diameter in field and the oviposition depth is about 0.9mm.The oviposition scars mainly concentrate in 3cm range to top shoot and the average eggs per scar is about11.