茶园绒茧蜂数量和空间动态及其与茶尺蠖的相关性  

Braconid wasp numeral and spatial dynamics and their relativity with host insects,Ectropis oblique,in tea gardens

作　　者：韩宝瑜[1] 周孝贵 周鹏[1] 崔林[1] 

机构地区：[1]中国农业科学院茶叶研究所农业部茶叶化学工程重点开放实验室,浙江杭州310008 [2]安徽省麻姑山茶场,安徽宣城242054

出　　处：《浙江农业学报》2006年第4期203-206,共4页Acta Agriculturae Zhejiangensis

基　　金：国家科技攻关项目(2001BA502B02);浙江省重点项目(2004C22040);浙江省151人才工程培养基金项目

摘　　要：对西湖龙井原产地景观茶园(2005年,5天调查1次)和绍兴市御茶村茶业公司大面积茶园(2004—2005年,每月调查1次)的茶尺蠖绒茧蜂、单白绵绒茧蜂与茶尺蠖数量进行调查研究,发现绒茧蜂对茶尺蠖跟随效应显著,但通常不足以控制茶尺蠖。对龙井原产地景观中10个茶园、皖南宣郎广茶场13个茶园茶丛上、中、下层绒茧蜂的数量分布作进一步的调查,发现两地的绒茧蜂在上、中、下层数量分布的百分率很相近,约为21%,43%,36%。龙井原产地10个茶园、御茶村4个茶园中,绒茧蜂和茶尺蠖皆以中层最多、下层次之、上层最少。即绒茧蜂在空间上的数量分布趋势与其寄主一致。聚集度指标测定结果表明,绒茧蜂在茶园中呈均匀分布,个别茶园中绒茧蜂呈弱的聚集分布,可能是受寄主聚集分布行为的影响。Through the survey on abundance of braeonid wasps, Apanteles spp. and their hosts tea geometrids, Ectropis oblique, in some tea gardens locating in natural landscape of Xihulongjing original producing area in Hangzhou City at intervals of five days in the year of 2005, as well as in a reach of tea gardens of Yuchacun Tea Co. in Shaoxing City at intervals of one month in the year of from 2004 to 2005, the results showed that braconid wasp population closely followed tea geometrid population, however, was not able to control its host population effectively. Based on the investigation on abundance of braconid wasps from upper, middle and lower layels of tea clump of ten gardens in natural landscape of Xihulongjing original producing area and thirteen ten gardens in Xuanlangguang tea plants growing area in the southern Anhui Province, the results were found out that numeral percentage in upper, middle and lower layers of tea clump in Xihulongjing area neared to those in Xuanlangguang area, i. e. 21% ,43% and 36%, effectively. Both number of braconid wasps and number of tea geometrids in three layers of tea clump in ten tea gardens locating in natural landscape of Xihulongjing original producing area and four tea gardens of Yuchacun Tea Co. followed the order： middle 〉 lower 〉 upper. The results determined by aggregating indices showed that b＇raconid wasps taked on uniform distributing pattern, but gived weak aggregating distributing patter in one tea garden, which may be responsible for aggregating behavior of their hosts, Ectropis oblique.

关 键 词：绒茧蜂 茶尺蠖 跟随效应 数量动态 空间格局 

分 类 号：S476.3[农业科学—农业昆虫与害虫防治] Q141[农业科学—植物保护]