高浓度性信息素和杀虫剂胁迫下梨小食心虫种群特征和为害  

Population Dynamics and Damage of Grapholitha molesta Busck Exposed to High Concentration Sex Pheromone and Insecticide Stress

作　　者：刘中芳 张敏[1] 孙晓婷 张鹏九 杨静 高越 樊建斌 范仁俊[1] LIU Zhongfang;ZHANG Min;SUN Xiaoting;ZHANG Pengjiu;YANG Jing;GAO Yue;FAN Jianbin;FAN Renjun(Shanxi Key Laboratory of Integrated Pest Management in Agriculture/College of Plant Protection,Shanxi Agricultural University,Taiyuan 030031,China)

机构地区：[1]山西农业大学植物保护学院/农业有害生物综合治理山西省重点实验室,太原030031

出　　处：《中国生物防治学报》2021年第5期914-919,共6页Chinese Journal of Biological Control

基　　金：国家重点研发计划(2019YFD1002102,2016YFD0201134);山西省重点研发计划(201603D21110-2);农业产业发展科技引领工程(2020CYYL-06);山西省农业科学院农业科技创新工程项目(YGC2019TD08-1)。

摘　　要：为了明确高浓度性信息素和杀虫剂胁迫对梨小食心虫的种群特征与为害的影响,2019—2020年连续2年在山西省运城市梨园内测定了性信息素迷向、杀虫剂等不同处理条件下,梨小食心虫种群数量、交配率以及蛀果率的动态变化。结果表明:2年内迷向防治区、迷向+杀虫剂防治区、杀虫剂防治区与空白对照区内梨小食心虫种群发生动态基本一致,但各处理区梨小食心虫种群数量逐年递减;其中,迷向+杀虫剂防治区梨小食心虫种群总量显著低于其他防控区,单个诱捕器诱蛾量分别为98.20头和67.20头;同时,迷向防治区和迷向+杀虫剂防治区,梨小食心虫的交配率和蛀果率也显著降低。综上所述,性信息素迷向和杀虫剂结合能更好地压低梨园梨小食心虫种群数量,降低其交配率和为害。研究结果为进一步提升梨小食心虫性信息素迷向防治效果提供了科学依据。Population dynamics and damage of Grapholitha molesta Busck were measured under different treatment conditions such as sex pheromone mating disruption and insecticide in pear orchards in Yuncheng City,Shanxi Province from 2019 to 2020. The results showed that the population dynamics of G. molesta were similar in the mating disruption plot, the mating disruption plus insecticide plot, the insecticide plot, and the CK plot in the 2 years, which was characterized by decreasing population densities year by year. Among them, the population size of G. molesta in the mating disruption plus insecticide plot was significantly lower than that in the other plots and the trap catches moths were 98.20 and 67.20, respectively. The mating rate and the rate of bored fruit were significantly reduced in the mating disruption plot and the mating disruption plus insecticide plot. In conclusion, the combination of sex pheromone and insecticide can reduce the population size, mating rate and damage of G. molesta.

关 键 词：梨小食心虫 性信息素 迷向 杀虫剂 种群特征 蛀果率 

分 类 号：S476[农业科学—农业昆虫与害虫防治]