田间气象条件对梨小食心虫越冬代出土的影响及辽宁中部地区梨小食心虫发生规律研究  

Influence of Meteorological Conditions on Grapholita molesta Overwintering Larvae Coming Out and the Law of Grapholita molest in Central Liaoning Area

作　　者：周大森[1] 公维敏 李结平[1] 赵章武[1] 

机构地区：[1]中国农业大学农学与生物技术学院,北京100193

出　　处：《北方园艺》2016年第6期109-112,共4页Northern Horticulture

摘　　要：以辽宁省海城市代表性的南果梨园为研究对象,连续3年采用性诱剂诱捕梨小食心虫成虫,并结合当地气象数据,研究了田间气象条件对梨小食心虫越冬代出土的影响及其发生规律。结果表明：梨小食心虫（简称梨小）越冬代幼虫出土主要受温度的影响,气温在13℃时梨小食心虫越冬代幼虫开始出土,在不同年份温度差异不大的情况下,较高气温对梨小出土没有明显的加速作用;降雨对梨小出土的影响主要体现在对温度的调控上,即降雨量越多导致气温越低,进而减缓梨小出土。辽中地区梨小食心虫发生情况受春季气温影响,一年发生3~4代。Taking representative pear gardens as research objects,the effect of meteorological condition on overwintering larvae coming out and the occurrence rule were studied by using sex pheromone and recording the local meteorological conditions in three consecutive years.The results showed that overwintering larvae of the oriental fruit moth unearthed was mainly influenced by temperature.When the air temperature was about 13℃,the larvae began to come out.And in a temperature range,higher temperature would not accelerate larval emergency.Rainfall could regulate the larval emergency by changes of temperature.The oriental fruit moth had 3-4generations per year depending on the temperature of the local position.

关 键 词：梨小食心虫 性诱剂 温度 发生规律 高峰期 

分 类 号：S436.612.29[农业科学—农业昆虫与害虫防治]