几种茶园绿肥冠层害虫与天敌调查及动态分析  

Investigation of main pests and natural enemies in several green manure canopies and their dynamic analysis

作　　者：李慧玲[1] 郭剑雄 吴光远[1] 张文锦[1] 林乃铨[3] 

机构地区：[1]福建省农业科学院茶叶研究所,福建福安355015 [2]宁德职业技术学院,福建福安355000 [3]福建农林大学植保学院生物防治研究所,福建福州350002

出　　处：《中国植保导刊》2014年第12期22-25,共4页China Plant Protection

基　　金：福建省自然科学基金项目(2013N0015);国家星火计划重大项目(2013GA720002);国家茶叶产业技术体系东部病虫害防控岗位专家基金(CARS-23)

摘　　要：通过扫网法、镜检法对茶园绿肥圆叶决明、三叶猪屎豆、木豆冠层害、益虫进行系统调查。在圆叶决明冠层共采集到节肢动物1 581头。其中,中性昆虫670头,占群落物种个体总数的42.38%,植食性害虫593头,占群落物种个体总数的37.51%,捕食性天敌200头,占群落物种个体总数的12.65%,寄生性天敌118头,占群落物种个体总数的7.46%;在三叶猪屎豆冠层共采集到节肢动物1 796头,其中植食性害虫911头,占物种个体总数的50.72%,中性昆虫582头,占群落物种个体总数的32.41%,天敌303头,占16.87%。木豆冠层共采集到节肢动物781头。其中,中性昆虫数量最多,356头,占群落物种个体总数的45.58%,植食性害虫289头,占群落物种个体总数的37.00%,天敌136头,占17.42%。3种绿肥冠层植食性害虫和天敌呈显著的正相关。叶片平均缺刻率圆叶决明最高,三叶猪屎豆次之,木豆最低,三者差异不显著(P>0.05)。A systematic investigation was conducted on the main pests and natural enemies in several green manure canopies in 2009 by sweep net and microscopic examination method. The results showed that 1581 individuals of arthro- pods were collected on Chamaecrista rotundifolia canopies with 670 neutral insects among them and occupied 42.38% of the total, herbivorous insects were 593 individuals and occupied 37.51%, 12.65% was predatory natural enemies and 7.46% was classified as parasitoids. 1796 animal individuals were collected in Crotalaria pallida Alt, 50.72% were herbiv- orous insects, and neutral insects were 32.41% and occupied 16.87%. In Cajanus cajan Linn. Canopies neutral insects were the most abundant and occupied 45.58%, herbivorous pests occupied 37.00%, natural enemies occupied 17.42%. Individual numbers of herbivorous pests were significantly and positively correlated with natural enemies in three green manure canopies. Rate of leaf blade incision of C. rotundifolia was the highest, C. pallida took second place, and C. cajan was the lowest. There was no obvious difference among the three green manure.

关 键 词：茶园 绿肥 圆叶决明 三叶猪屎豆 木豆 

分 类 号：S435.5[农业科学—农业昆虫与害虫防治]