天竺桂佛州龟蜡蚧生物学特性观察  

Bionomics of Ceroplastes floridensis in Cinnamomum japonicum

作　　者：魏开炬 

机构地区：[1]尤溪一中,福建尤溪365100

出　　处：《中国森林病虫》2011年第5期17-20,共4页Forest Pest and Disease

摘　　要：佛州龟蜡蚧Ceroplastes floridensis Comstock是严重危害天竺桂Cinnamomum japonicum的重要害虫。该虫在福建尤溪1 a发生2代,以第2代孕卵雌成虫越冬,少量以未孕卵雌成虫和3龄若虫越冬。第1代雌虫产卵、孵化盛期分别为8月上旬和8月下旬;第2代雌虫产卵、孵化盛期分别为4月中旬和5月上、中旬。孤雌生殖。第1,2代雌虫平均产卵量分别为222.8,145.6粒,卵平均孵化率为93.8%和95.5%。1龄若虫期和成虫孕卵前期是防治的有利时机,防治的最适时间为每年的5月中旬,最迟不超过7月中旬。Ceroplastes floridensis was a serious pest in Cinnamomum japonicum.It had two generations a year in Youxi,Fujian Province.Most of them overwintered as the gestated female adults of the second generation and only a few overwintered as ungestated female adults and the nymphs in the third instar.The peaks of oviposition and egg-hatching of the first generation were in the first and last ten-days of August,and those of the second generation were in mid April and the first twenty-days of May.They were parthenogenetic.The average egg numbers of the 1st and 2nd generations were 222.8 and 145.6 per female.And their average hatchability was 93.8% and 95.5%.The period of the nymph in the first-instar and prophase of gestation were the optimum time for control,when was mid May.

关 键 词：佛州龟蜡蚧 生物学 天竺桂 

分 类 号：S763.35[农业科学—森林保护学]