韭菜迟眼蕈蚊幼虫田间分布型及抽样技术研究初报  

A Preliminary Study on Distributing Phase and Sampling Methods of Braidysia olaiphage larva in Chinese Chive Field

作　　者：卢巧英 张文学 郭卫龙 张毅 

机构地区：[1]西安市长安区农技中心,陕西长安710100 [2]西安市长安区园艺站,陕西长安710100

出　　处：《西北农业学报》2006年第2期75-77,共3页Acta Agriculturae Boreali-occidentalis Sinica

基　　金：国家"十五"科技攻关重大专项课题"西部地区蔬菜无公害生产关键技术集成与产业化示范"(2004BA516A09)

摘　　要：以聚集指标及Iwao回归、Talor回归确定韭菜田韭菜迟眼蕈蚊幼虫的田间分布状态。结果表明,韭菜田韭菜迟眼蕈蚊幼虫呈聚集分布,服从负二项分布型,幼虫的聚集是由生物习性造成的。u统计量分析表明,韭菜田较为理想的抽样方式有Z字形、棋盘式和平行线法。10点、12点、14点抽样数据的离散度小,8点抽样误差大。The field distributing phase of Braidysia olaiphage larva in Chinese chive field by memoas of accumulating index, Iwao regression and Talor regression were studied The results showed that Braidysia olaiphage larva distributed in accumulating manner, which followed the negative binomial distribution. This accumulating characteristics is duo to the biologic habit of the larva. The u statistic parameter indicated that the ideal sampling methods for this pest in Chinese chive field are Z shape sampling, chessboard shape sampling and parallel sampling. The sampling data from 10 sites,12 sites and 14 sites showed small dispersion, but 8 site sampling showed big dispersion data.

关 键 词：韭菜迟眼蕈蚊 幼虫 田间分布型 抽样技术 

分 类 号：S436.33[农业科学—农业昆虫与害虫防治]