甘肃省白银和张掖地区梨园梨小食心虫和桃小食心虫发生动态  

Occurrence dynamics of Grapholita molesta and Carposina sasakii in pear orchard in Baiyin and Zhangye,Gansu province

作　　者：李红旭[1] 魏姿涵 曹素芳[1] 贾煜婕 朱高锋 王威龙 赵鹏 田靖[3] 李贞 马鸿波 张松斗 刘小侠 LI Hongxu;WEI Zihan;CAO Sufang;JIA Yujie;ZHU Gaofeng;WANG Weilong;ZHAO Peng;TIAN Jing;LI Zhen;MA Hongbo;ZHANG Songdou;LIU Xiaoxia(Institute of Fruit and Floriculture Research,Gansu Academy of Agricultural Sciences,Lanzhou 730070,China;Department of Entomology,College of Plant Protection,China Agricultural University,Beijing 100193,China;Zhangye Experimental Field of Gansu Academy of Agricultural Sciences,Zhangye 734000,China;Zhangye Xiliyuan Fruit Industry Co.,Ltd.,Zhangye 734019,China)

机构地区：[1]甘肃省农业科学院林果花卉研究所,兰州730070 [2]中国农业大学植物保护学院昆虫学系,北京100193 [3]甘肃省农业科学院张掖试验场,张掖734000 [4]张掖西黎园果业有限公司,张掖734019

出　　处：《植物保护》2024年第5期272-277,共6页Plant Protection

基　　金：现代农业产业技术体系建设专项(CARS-28)。

摘　　要：在甘肃省白银和张掖地区梨园,利用三角形性诱捕器连续3年(2021年-2023年)监测了梨小食心虫Grapholita molesta(Busck)和桃小食心虫Carposina sasakii Matsumura种群动态。结果表明,该地区主要以梨小食心虫发生为主,一年发生3代和不完全4代;越冬代成虫约在4月上旬开始出现,第1代高峰期为5月中下旬至6月初,第2代高峰期为7月上中旬,第3代发生高峰期在8月底至9月中旬。不同地区不同年份年诱蛾总量差异较大,最高可达3835头/诱捕器,最低为412头/诱捕器。桃小食心虫在该地区1年发生2代,且发生量较少,全年诱虫总量在70头/诱捕器以下。通过对3个监测点3年数据的分析,初步掌握了梨小食心虫和桃小食心虫在甘肃省这两个地区的发生规律,为达到良好防控效果,应选择越冬代高峰期之前,即4月中旬进行第一次防治。In Baiyin and Zhangye,Gansu province,triangular traps were used to monitor the number of adult populations of Grapholita molesta and Carposina sasakii,and the dynamic changes of the populations of the two types of fruit-boring pests were analyzed during the three consecutive years(2021-2023).The result show that,G.molesta is the dominant pest in the region.It has three generations and an incomplete 4th generation throughout the year.Overwintering adults begin to appear in early to April.The first-generation peak period is from mid-May to beginning of June.The peak of the second generation is in the early to middle of July.The peak of the third generation occurs from late August to mid-September.The total amount of moths in different regions and years varied greatly,with a maximum of 3835 moths per trap and a minimum of 412 moths per trap,respectively.In this region,C.sasakii occurs two generations a year,with a relatively low occurrence rate,annual trapping amount below 70 per trap.By collating and analyzing three years of data from three monitoring sites,we preliminarily grasped the occurrence regularity of G.molesta and C.sasakii in Gansu province.To achieve good control effect,prevention and control should be carried out in mid-April before the peak of the overwintering generation.

关 键 词：梨小食心虫 桃小食心虫 发生动态 蛀果害虫 

分 类 号：S436.6[农业科学—农业昆虫与害虫防治]