螟蛾类害虫种类及发生危害初步调查

学号：02106064

2010届本科生毕业论文（设计）

题目：杨凌地区螟蛾类害虫种类及

发生危害初步调查

学院(系)：植物保护

专业年级：植保063班

学生姓名：郭振营

指导教师：杨兆富讲师

完成日期： 2010年5月26日

目录

摘要

Abstracts

1 引言 0

1.1 杨凌地区概况 (1)

1.2 螟蛾类昆虫研究概况及经济意义 (1)

1.3 螟蛾类昆虫生物学习性 (2)

2 螟蛾类害虫研究概况 (2)

2.1 种类调查 (2)

2.2 发生危害 (3)

2.3 防治技术 (4)

3 目的及意义 (6)

4 试验材料及方法 (6)

4.1 实验材料 (6)

4.2 调查区域 (6)

4.3 调查方法 (7)

5 试验结果与分析 (7)

5.1 亚洲玉米螟 (7)

5.1.1 特征及害状特点描述 (7)

5.1.2 危害严重程度及发生量 (8)

5.2 豆荚野螟 (9)

5.2.1 特征及害状特点描述 (10)

5.2.2 危害严重程度及发生量 (10)

5.3 豆啮叶野螟 (11)

5.3.1 特征及害状特点描述 (11)

5.3.2 危害严重程度及发生量 (11)

5.4 桃蛀螟 (12)

5.4.1 特征及害状特点描述 (13)

5.4.2 危害严重程度及发生量 (13)

5.5 甜菜白带野螟 (14)

5.5.1 形态特征描述 (14)

5.5.2 危害严重程度及发生量 (15)

5.6 稻纵卷叶螟 (15)

5.6.1 形态特征描述 (15)

5.6.2 危害严重程度及发生量 (15)

6 讨论 (15)

参考文献 (17)

致谢 (19)

杨凌地区螟蛾类害虫种类及发生危害初步调查

姓名：郭振营指导教师：杨兆富（讲师）

摘要：本实验于2009年通过对杨凌地区的农作物、果树和蔬菜等的螟蛾类害虫的调查，采集并鉴定了6种螟蛾类害虫，隶属于螟蛾总科的六个属。并对每一种害虫的形态特征，为害特点及危害状况进行了的描述。其中亚洲玉米螟Ostrinia furnacalis (Guenée)在玉米成熟期、豆荚野螟Maruca vitrata (Geyer)对于豇豆结荚期种群数量巨大，是需要重点防治的类群。桃蛀螟Conogethes punctiferalis (Guenée)和豆啮叶野螟Omiodes indicata(Fabricius) 总体发生量相对较少。但这四种害虫对于寄主危害都属严重+++。而稻纵卷叶螟Cnaphalocrocis medinalis(Guenée)和甜菜白带野螟Spoladea recurvalis (Fabricius)没有在重要经济作物上发现其幼虫，危害及发生有待进一步调查。最后结合各害虫发生特点对螟虫的防治做了讨论。

关键词：螟蛾; 害虫; 危害; 防治

Preliminary Investigation on snout moths Pest Varieties

and Its Occurrence and Harm in YangLing Regions

Student: Guo Zhenying Tutor: Yang Zhaofu

Abstract: Based on a preliminary investigation on snout moths of different field in 2009, such as corp plant, vegetable and orchards .We found six hazard species belong to six genera were occurred in our investigated field. Furthurmore, we describe the morphology, distribution and damaged rating of these species. The quantity of Ostrinia furnacalis (Guenée) which exist in maize maturation period and Maruca vitrata(Geyer) which exist in cowpea pod bearing period are very tremendous, which supposed to these two pest should be controled in this time.The quantity of Conogethes punctiferalis(Guenée) is moderate while Omiodes indicata(Fabricius) is lower. the harmful level of them are all very serious+++ But Cnaphalocrocis medinalis (Guenée) and Spoladea recurvalis(Fabricius) have not been caught in economical crops, The occurrence and Harm of these two pest must be further investigated..In the end of thesis, we also preliminarily discussed the control method.

Keyword: snout moths, pest, damage, control