宁夏苜蓿害虫天敌种类及其田间发生规律的初步研究  

Preliminary study on predator species and their occurrence regulation of alfalfa insects

作　　者：张蓉 马建华 杨芳 常兆斌 李云 王秉锋 杨涛 

机构地区：[1]宁夏农科院植物保护研究所,宁夏银川750002 [2]宁夏彭阳县草原站,宁夏彭阳756500

出　　处：《草业科学》2003年第7期60-62,共3页Pratacultural Science

基　　金：自治区"8613"重点攻关项目"宁夏苜蓿病虫害预测预报及防治技术研究"(2002 Z01 06)

摘　　要：通过田间系统调查和鉴定,明确了宁夏苜蓿害虫天敌种类和优势种群,初步研究了优势种群瓢虫、草蛉、捕食蝽及蜘蛛的田间消长规律,并对主要害虫蚜虫、蓟马与其天敌的动态关系进行了分析,为今后苜蓿害虫的生物防治提供了重要的科学依据。The predator species and dominant populations of alfalfa insects were determined in Ningxia, through systematic field investigations and species identification Field growth and decline of dominant species such as ladybeetles, lacewings, predatory bugs and spiders was preliminarily studied, and the dynamic relationship between alfalfa aphids, thrips and the dominant predators was analyzed as well, which provided vital scientific basis for future biological control of alfalfa insects

关 键 词：宁夏 苜蓿害虫 天敌 种类 田间发生规律 生物防治 

分 类 号：S476[农业科学—农业昆虫与害虫防治]