烟草科技2025，Vol.58Issue(11)：53-57,82,6.DOI:10.16135/j.issn1002-0861.2024.0896
湖北烟草苗期一种新记录害虫的发生规律和形态特征
Occurrence patterns and morphological characteristics of a newly recorded pest on tobacco seedlings in Hubei Province
摘要
Abstract
A previously unknown pest infesting tobacco seedlings was discovered in a tobacco seedling shed in Moping Town,Zigui County,Yidu City,Hubei Province.To determine its occurrence pattern and taxonomic identity,field surveys were carried out to assess larval damage and adult emergence dynamics.The pest was classified based on the morphological characteristics of the adults,pupae,and larvae.The results showed that the larvae concealed themselves in the soil or seedling substrate during the day and emerged at night to feed on the leaves of tobacco seedlings,creating notches.In severe cases,entire leaves were consumed,leading to the progressive death of seedlings.Adult emergence began on May 2 and peaked on May 9.Adults exhibited three irregular dark gray spots on their wings:two on the cubitus(Cu)and one within the r cell.The pupal body was uniformly light yellow-brown with slightly darker tarsal and wing sheaths.The thoracic dorsum bore two pairs of prominent lobes,the terminal segment featured six pairs of spines,and the respiratory organs were almost similar in length.Larvae were nearly cylindrical and tapered at both ends.They were dark grey with lighter lateral regions and bore transverse tufts of setae on the dorsal surface of the three thoracic segments.Based on its occurrence pattern and morphological characteristics,the pest was identified as Tipula shirakii,a newly recorded pest of tobacco seedlings in Hubei Province.关键词
烟草/害虫/暗缘尖大蚊/形态特征/发生规律Key words
Tobacco/Pest/Tipula shirakii/Morphological characteristic/Occurrence pattern分类
植物保护学引用本文复制引用
张空,郑伟,黎妍妍,谭本奎,许汝冰,王在凌..湖北烟草苗期一种新记录害虫的发生规律和形态特征[J].烟草科技,2025,58(11):53-57,82,6.基金项目
中国烟草总公司科技项目"基于粮/油烟融合的武陵秦巴生态区绿色防控综合治理技术研究与应用"[110202201023(LS-07)]. （LS-07）
