【摘要】 在不同品种的月季Rosa chinensis喂养下,测定了玫瑰三节叶蜂Arge pagana Panzer幼虫各龄期的发育历期和取食量,结果表明:玫瑰三节叶蜂能以3个品种月季为食,并正常完成世代,说明其对月季各品种的普遍适应性。该虫1~2龄取食量较低,3龄(在卵孵化后5 d左右)进入暴食期,12 d左右达到取食高峰。防治玫瑰三节叶蜂应在其幼虫进入暴食期前进行,即在卵孵化5 d内进行防治,可避免严重经济损失。更多还原

【Abstract】 The feeding amount and development duration of Arge pagana Panzer fed with different rose species were determined. The results showed A. pagana could feed on all the three rose species and complete the whole generation. The feeding amount of the 1st and 2nd instar larvae was low,but it increased rapidly from the 3rd instar( 5 days after hatching) with a peak about 12 days after hatching.Therefore,control measures should be taken before that period to avoid serious economic loss.更多还原