桑天牛成虫生物学特性及林间动态  

Biological Characters and Forest Dynamics of Apriona germari Adults

作　　者：骆启权 苏远达[2] 

机构地区：[1]安徽省肥东县林业局桥头集林业站,安徽肥东231607 [2]安徽农业大学林学与园林学院,安徽合肥230036

出　　处：《安徽农业科学》2013年第35期13572-13574,共3页Journal of Anhui Agricultural Sciences

基　　金：合肥市科技计划项目(合科2007;15号)

摘　　要：通过对安徽合肥地区杨树林桑天牛成虫的林间动态调查和室内饲养观察,研究桑天牛成虫的林间发生动态及成虫期生物学特性。结果显示,桑天牛成虫出现期在6月下旬,高峰期在7月上旬,雌雄性比1.08∶1.00。桑天牛成虫个体数量占4种天牛(桑天牛、光肩星天牛、星天牛、云斑白条天牛)总个体数量的96.3%。成虫一生均需补充营养,补充营养最喜食植物为构树,平均补充营养量(取食面积)1 200 mm2;雌雄成虫一生均可交配,前18 d交配次数较多,后逐渐减少,且上午交配多于下午;雌虫平均咬产卵刻槽数33.4个,平均产卵量24.5粒,幼虫孵化率100%;成虫寿命平均雌32.3 d,雄33.3 d。The forest dynamic and laboratorial rearing of Apriona germari adults were investigated and observed in Hefei, Anhui Province, on the basis of which forest occurrence dynamics and biological characteristics of A. germari adults were studied. Results showed that occurrence period and peak period of A. germari adults were late June and early July, respectively. In addition, male-female ratio was 1.08：1.00. Num- ber ofA. gerrnari adults accounted for 96.3% of 4 species of longhorned beetle （A. germari, Anoplophora glabripennis, and Anoplophora chinensis, Batocera horsfieldi）. Maturation feeding is required in all adult life. The favorite maturation feeding plant of adults was Broussonetia papyrifera, and the average feeding area was 1,200 mm2. Male and female adults can mate in their whole life, mating times gradually in- creased within 18 d and then declined. Furthermore, adult mating preferred morning to afternoon. The average oviposition pit number and the average egg quantity of each female adult was 33.4 and 24.5 respectively. The hatching rate of eggs was 100%. The life-span of female and male adult was 32.3 d and 33.3 d respectively.

关 键 词：桑天牛 生物学特性 林间动态 

分 类 号：S763.1[农业科学—森林保护学]