摘要
2012年我国小麦病虫害重发种类多、涉及区域广、危害程度重。本文全面总结了赤霉病、条锈病、白粉病、纹枯病、蚜虫、蜘蛛、吸浆虫等小麦7大病虫的发生面积、范围、分布区域、发展动态、危害程度等发生特点。分析近年来小麦重大病虫害发生特点变化趋势,主要表现为重发威胁长期存在、暴发规律更难掌握,小环境特异化导致分布差异大和人为防治因素显著影响发生程度等方面。提出应加深认识、提高警惕、加强监测,综合考虑小环境特异化因素和人为防治因素,以提高病虫害预测预报的指导性、精确度和准确性。
The wheat principal pests occurred in vast areas with several outbreak-types and caused serious damages in China in 2012.This paper presented a comprehensive conclusion about the occurrence traits of seven wheat principal pests,such as wheat scab,stripe rust,powdery mildew,sharp eyespot,aphids,mites and midges,by describing their occurrence area,range,distribution,development dynamics and hazard degrees.The variation trends of wheat pests＇ occurrence traits in recent years have been characterized by long-standing grievous threat,elusive eruption regulation,multivariate distribution depending on micro-environmental differentiation,and notable influences by contrived prevention and cure.To improve the guidance effect,precision and accuracy of pest forecasting,we should always adopt an alert attitude,and take an integrative consideration with micro-environmental differentiation and contrived influences.
出处
《植物保护》
CAS
CSCD
北大核心
2013年第6期78-85,共8页
Plant Protection
基金
公益性行业(农业)科研专项(200903035)
