榆黄毛萤叶甲生物学习性及发生动态研究
Biological characteristics and population dynamics of Pyrrhalta maculicollis
阿地力·沙塔尔1** 陈亚丽1** 阿不都拉·艾克拜尔2 喻 峰3
点击：1324次 下载：2次
DOI：10.7679/j.issn.2095-1353.2017.102
作者单位：1. 新疆农业大学林学与园艺学院，乌鲁木齐 830052；2. 新疆农业大学林学与园艺学院，乌鲁木齐 830052； 3. 新疆吐鲁番市林业有害生物防治检疫局，吐鲁番 838000
中文关键词：榆黄毛萤叶甲，年生活史，习性，发生动态，光源，诱集
英文关键词：Pyrrhalta maculicollis, annual life history, habits, occurrence dynamics, light, trapping
中文摘要：
【目的】 榆黄毛萤叶甲Pyrrhalta maculicollis (Mots.)是近年来在新疆新发现的榆树食叶害虫，本文经对其生物学习性的研究，为该害虫的有效控制提供科学依据。【方法】 经室内外连续2年的观察，较系统研究了榆黄毛萤叶甲在吐鲁番市的年生活史、习性及其发生动态。【结果】 榆黄毛萤叶甲在吐鲁番市一年发生4代，以成虫在老树干基部树缝内、干基部土缝内群集越冬。翌年3月底开始出蛰，并以榆树嫩芽补充营养，4月上旬开始交尾产卵。各代幼虫分别于4月中旬、6月上旬、7月下旬和9月中旬发生，各代间世代重叠。5种颜色的光源对榆黄毛萤叶甲诱集试验结果表明，榆黄毛萤叶甲有较强的趋光性，蓝光对其诱集效果最好。【结论】 榆黄毛萤叶甲在吐鲁番市3月至10月间，以成虫和幼虫对榆树不间断为害，且有世代重叠现象，4月、5月为该害虫防治关键时期。
英文摘要：
[Objectives] Pyrrhalta maculicollis is an emergent leaf-eating pest found in recent years in Xinjiang. The paper aims to provide a scientific basis for the effective control of P. maculicollis. [Methods] The life history, habits and population dynamics of P. maculicollis were studied systematically over two-years in Turpan. [Results] In Turpan city, P. maculicollis has 4 overlapping generations a year and overwinters at the base of tree trunks. Larvae of every generation occur in mid-April, early June, late July and mid-September. Light-trapping experiments show that P. maculicollis has strong phototaxis and is most attracted to blue traps. [Conclusion] The adults and larvae of P. maculicollis cause most damage from March to October and have overlapping generations. April and May are crucial periods for the prevention and control of this pest.