玉溪市红塔区园林绿地春夏季杂草发生危害规律

Regularity of Weeds Occurrence and Harm in Spring and Summer in Gardan Green Space in Hongta District,Yuxi City

[目的]掌握红塔区园林绿地春、夏两季杂草的种类、种群结构及发生情况。[方法]分春、夏两季研究云南省玉溪市红塔区园林绿地杂草发生危害规律。[结果]玉溪市红塔区园林绿地春季杂草有29种,分属17科,其中菊科9种,占31.03%;禾本科3种,占10.34%;伞形科、大戟科2科各2种,分别占6.90%;酢浆草科、苋科、唇形科、蔷薇科、鸭跖草科、车前科等13科各1种,均占3.45%。夏季杂草有38种,分属20科,其中菊科12种,占31.58%;禾本科3种,占7.89%;伞形科、蝶形花科、大戟科、酢浆草科、蓼科5科各2种,均占5.26%;藜科、仙茅科、莎草科、鸭跖草科、车前科、十字花科等13科各1种,均占2.63%。[结论]初步了解了红塔地区春、夏季杂草种类、分布、种群结构、危害程度及不同类型绿地的危害差异,为综合防除春、夏两季杂草提供了理论依据。

[Objective] The aim was to grasp species, community structure and occurrence situation of weeds in spring and summer in garden green space in Hongta District, Yuxi City.[ Method] The regularity of weeds occurrence and harm in spring and summer in garden green space in Hongta District, Yuxi City were studied.[ Result] The results showed that there are 29 kinds of spring weeds in garden green space in Hongta District, Yuxi City, belong to 17 families including Eompositae（9 species, accounting for 31.03%）, Gramineae（3 species, accountingfor 10.34%）, Apiaceae, Euphorbiaceae（2 species of each family, accounting for 6.90%）, Oxalidaceae, Amaranthaceae, Larniaceae, Rosaceae, Commelinaceae, Plantaginaceae （1 species of each family, accounting for 3.45%）.There are 38 kinds of summer weeds, belong to 20 families, including Eompositae（12 species, accounting for 31.58%）, Gramineae（ 3 species, accountingfor 7.89%）, Apiaceae, Papilionaceae, Euphor-biaceae, Oxalidaceae, Polygonaceae（2 species of each family, accounting for 5.26%）, Chenopodiaceae, Hypoxidaceae, Cyperaceae, Commeli-naceae, Plantaginaceae, Brassicaceae（1 species of each family, accounting for 2.63%）.[Conclusion] The preliminary understanding about weed species, distribution, population structure, harm degree and differences of different types of green space in spring and summer will offer an theoretical basis for comprehensive control of weeds in spring and summer.