宁夏苜蓿主要害虫田间消长规律的初步研究  

Preliminary Study on Law of Field Growth and Decline of Alfalfa Major Insects in Ningxia

作　　者：张蓉 马建华 杨芳 王进华 

机构地区：[1]宁夏农科院植物保护研究所,银川750002 [2]宁夏草原工作站,银川750001

出　　处：《四川草原》2004年第4期12-14,共3页Journal of Sichuan Grassland

基　　金：宁夏回族自治区"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"。

摘　　要：根据在宁夏3个生态区设调查点对苜蓿主要害虫进行系统调查的结果,初步分析了苜蓿主要害虫蚜虫、蓟马、草地螟、盲蝽的田间消长规律,明确了宁夏苜蓿主要害虫的种群变化、发生高峰期及危害程度,为今后的预测预报和防治技术研究奠定了基础。Major alfalfa insects were systematically investigated in three survey sites where can represent three main biological areas of Ningxia. Acording to the investigation results, the law of field growth and decline of alfalfa aphids, thrips, grass moth, bugs and leaf miner in different biological areas of Ningxia was preliminarily analysed. It was clear about population change, the Severe occurrence period and harmfulness of alfalfa major insects in Ningxia. It will make an important basis for forecast and control of alfalfa insects.

关 键 词：宁夏 苜蓿害虫 田间消长规律 种类 预测预报 防治 

分 类 号：S435.4[农业科学—农业昆虫与害虫防治]