江苏南部丘陵茶园外来入侵杂草发生危害研究  

Occurrences of invasive weeds in tea gardens in southern hilly regions of Jiangsu Province

作　　者：季敏[1] 孙国俊[1,2] 储寅芳 吴永方 李粉华[1] 张海艳[1] 韩敏[1] 袁方[1] 

机构地区：[1]金坛市植保植检站,江苏213200 [2]扬州大学园艺与植物保护学院,扬州225009 [3]宜兴市植保植检站,江苏214206 [4]仪征市植保植检站,江苏211400

出　　处：《植物保护》2014年第1期157-161,共5页Plant Protection

基　　金：公益性行业(农业)科研专项(200903004);"江苏省农作物有害生物种类与发生危害特点研究"

摘　　要：调查明确了江苏南部丘陵茶园外来入侵杂草的种类和发生情况,分析了外来杂草原产地及其生活型组成。共调查到外来杂草39种,占调查全部杂草种类数的18.93%。这39种外来杂草中,菊科的最多为9种,其次为禾本科和苋科,各5种。这些外来杂草主要来自于美洲(27种),并且以非多年生植物为主(占76.92%)。江苏金坛茶园连续两年的野外调查发现,一年蓬(Erigeron annuus)、野老鹳草(Geranium carolinianum)、婆婆纳(Veronica didyma)和小白酒草(Conyza canadensis)是春季的优势外来杂草;牛筋草(Eleusine indica)、一年蓬、小白酒草是秋季的优势外来杂草。Species and occurrences of invasive weeds were investigated in tea gardens in southern hilly regions of Jiangsu Province, and their origin and life form were also analyzed. Totally 39 invasive weed species were ob- served, accounting for 18.93% of all the weed species observed in the tea gardens. Among the 39 invasive weed species, 9 species belonged to the family of Compositae, 5 species belonged to Poaceae and another 5 species be- longed to Amaranthaceae. Among these weeds, 27 species were native to American continent and most of them were non-perennial plants （occupied 76.92%）. Two years＇ field investigation in tea garden in Jintan indicated that Erigeron annuus, Geranium carolinianum, Veronica didyma and Conyza canadensis were the dominant inva- sive weed species in Spring, while Eleusine indica, Erigeron annuus and Conyza canadensis were the dominant in- vasive weed species in Autumn.

关 键 词：茶园 外来杂草 原产地 生活型 优势种 危害 

分 类 号：S41-30[农业科学—植物保护] S451.0