柚实雷瘿蚊的形态特征和生物学特性  

Morphology and Bionomics of Resseliella citrifrugis Jiang

作　　者：黄佳仁[1] 周社文[1] 周正光 周生清 成进[1] 邓萍芳[1] 

机构地区：[1]湖南省植保植检站,湖南长沙410005 [2]永州市植保植检站,湖南永州425000 [3]江永县植保植检站,湖南江永425500

出　　处：《湖南农业大学学报（自然科学版）》2001年第6期445-448,共4页Journal of Hunan Agricultural University(Natural Sciences)

基　　金：湖南省科技厅重点攻关项目 ;湖南省农业厅重点资助项目 (98- 0 3- 0 8)

摘　　要：柚实雷瘿蚊是近年在广东梅县和湖南江永、芷江等地发现的主要柚树害虫 .为阐明其形态特征和生物学特性 ,并进而为其综合防治提供依据 ,笔者于 1996～ 2 0 0 0年在湖南对此虫进行了系统调查 ,明确柚实雷瘿蚊在目前主要分布于永州、怀化 ,并对其各虫态形态特征作了详细描述 .柚实雷瘿蚊在湖南一年发生 4代 ,以老熟幼虫于 10月下旬或 11月上旬进入土中或未腐烂的柚果中开始越冬 ,翌年 4月下旬羽化 .幼虫 4龄 ,蛀食柚果 ,造成柚果未熟先黄、落果和烂果 .全年在 5月中下旬、6月下旬至 7月上旬、8月下旬至 9月上旬有 3个为害高峰期 ,尤以 5月中下旬第一代幼虫为害最重 .提出了加强检疫、冬后表土施药、套袋保果、树冠及表土施药等综合防治措施 .Resseliella citrifrugis Jiang is an injurious insect on grapefruit.Its distribution in Hunan Province,and its morphology and bionomics are described in detail in this paper. It occurs for 4 generations every year in Hunan,and over-winters with the 4 th instars larvae in soil or in pomelo.The adult begins to emerge in the last ten days of April.The larvae have 4 instars and their damage can result in the drop of pomelo.The second and last ten days of May,the last ten days of June to the first ten days of July,and the last ten days of August to the first ten days of September are the three damage peaks,especially the first period.The control measures are as follows:the enhancement of quarantine work,application of pesticide to soil surface in winter,keeping fruits in bags,application of pesticide to the crowns of trees and the surface of soil.

关 键 词：柚实雷瘿蚊 形态特征 生物学特性 防治 

分 类 号：S436.661.2[农业科学—农业昆虫与害虫防治]