香梨优斑螟在甘肃的发生规律与为害特性
Occurrence pattern and damage characteristics of Euzophera pyriella in Gansu Province,China
何晓灵 1张大为 2付晓伟 3陆宴辉4
作者信息
- 1. 河南科技学院资源与环境学院,河南新乡 453003;中国农业科学院植物保护研究所,北京 100193
- 2. 中国农业科学院植物保护研究所,北京 100193;甘肃省农业科学院植物保护研究所,甘肃兰州 730070
- 3. 河南科技学院资源与环境学院,河南新乡 453003
- 4. 中国农业科学院植物保护研究所,北京 100193
- 折叠
摘要
香梨优斑螟(Euzophera pyriella Yang)是甘肃省新发生的重要林果蛀果蛀干害虫.通过田间调查,对甘肃省张掖市和兰州市不同果园香梨优斑螟的种群发生动态及生物学特性进行了系统研究.结果表明:香梨优斑螟在甘肃地区1年可发生3代,第2代成虫密度最高;主要以3～5龄幼虫在树干和侧枝的翘皮裂缝处、腐烂病斑处和果实内滞育越冬;除已报道的苹果、梨、杏、枣等外,新发现一种适生寄主——贴梗海棠.本研究初步了解了香梨优斑螟在甘肃省的为害寄主、年发生动态及越冬习性,为该害虫的防控阻截提供了科学依据.
Abstract
This study systematically investigated the population dynamics and biological characteristics of Euzophera pyrilla Yang,a new and significant fruit-boring and trunk-boring pest in Gansu Province.Field investigations were conducted in different fruit production regions in Zhangye and Lanzhou of Gansu Province.The results showed that E.pyriella had three generations per year in Zhangye area,with the second generation having the highest adult density.The 3rd to 5th instar larvae overwintered in the cracked bark or lesions on tree trunks and lateral branches,as well as in fruits.In addition to the reported host plants such as apple,pear,apricot,and Chinese date,we discovered that Chaenomeles speciosa is a new suitable host for E.pyriella.This study provides a preliminarily clarification of the main biological characteristics and seasonal dynamics of E.pyriella in Gansu Province,offering a scientific basis for the prevention and control of this pest.
关键词
香梨优斑螟/寄主植物/发生规律/为害和越冬特性Key words
Euzophera pyriella Yang/,host plant/occurrence pattern/biological characteristics引用本文复制引用
基金项目
国家自然科学基金(32160640)
中国农科院科技创新工程项目()
出版年
2024
NETL
NSTL
万方数据