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control Effect of Several replacement Plants on Invasive Weed Eupatorium adenophorum Spreng

Plant Diseases and Pests 2013年第2期4卷 40-44页

作者： Lu Xiangyang Wang Qiuxia Zhang Jinhua Zuo Xiangbing Liu Bin Institute of Plant & Environmental Protection Beijing Academy of Agricultural and Forestry Science Institute of Plant Protection Chinese Academy of Agricultural Sciences Institute of Prataculture Guizhou Academy of Agricultural Sciences

To select the suitable plant species controlling Eupatorium adenophorum in hilly area, ecological adaptability, competitiveness and control efficacy of many replacement plants with economic value in Guizhou Province of China were studied. The results showed that the coverage of paspalum wetsfeteini and Dolichos lablab were 100% and 93%, which increased by 3.70 and 3.44 times compared with Lolium perenne, respectively; their relative crowding coefficient with E. adenophorum were 7.09 and 22.78, which increased by 2.43 and 7.80 times compared with L perenroe, respectively. Using excavation method, the control efficacies of replacement plants were 99.3 % and 96.9%, respectively, while the control efficacy of replacement plants using mowing method was lower than 66.4%. The overwintering rate of P. wetsfeteini in the following year was 95% ; its coverage was still 100% and its control efficacy against E. adenophorum remained over 99%. D. lablab was difficult to survive the winter in the north region beyond 26.2°N, so it could only be applied as annual replacement plant. The coverage of Setaria anceps, Cajanus cajan and other test plants were less than 90%, with poor control efficacy against E. adenophorum.

关键词： Alien invasive weed Eupatorium adenophorum Spreng replacement control Paspalum wetsfeteini Dolichos lablab

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control Effect of replacement Cultivation of Several High Quality Forages against Eupatorium adenophorum

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Plant Diseases and Pests 2013年第5期4卷 26-28,32页

作者： Hua Jingsong Xichang College

[Objective] The paper was to analyze the control effect of replacement cultivation of several high quality forages against Eupatorium adenophorum. [ Method] Five high quality forages including Lolium perenne, Dactylis glomerata, Setaria anceps, Trifolium repens and Medicago sativa were planted in the fields invaded by E. adenophorum, and their ecological adaptability and control effect against E. adenophorum were studied. [Result] Five kinds of forages could nor- mally grow at the local land. The indexes such as coverage, plant height, fresh weight of stems and leaves of S. anceps were the highest, and it showed very strong ecological adaptability as well as the best control effect on E. adenophorum, up to 97.85% and 93.81% at the first and second year, respectively, indicating good sustainable control effect. D. glomerata ranked the second place, of which the coverage after one year was 86% and the control effect on E. adenophorum was 89.68%. The other species showed poor control effect on E. adenophorum because of slow growth rate and heavily damage from companion weeds even they could establish dominant communities. [ Condusion] The paper provided reference for ecological control against E. adenophorum in local land and ecological restoration of invasive land.

关键词： Eupatorium adenophorum High quality forage replacement control

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Competition effect of Cogon grass,Imperata cylindrica to Crofton weed,Ageratina adenophora

Competition effect of Cogon grass,Imperata cylindrica to Cro...

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第三届全国生物入侵大会

作者： Fu-rong Gui~1,Zheng-yue Li~1,Fang-hao Wan~(2*) 1.College of Plant Protection,Yunnan Agricultural University,Kunming 650201,China 2.Institute of Plant Protection,Chinese Academy of Agricultural Sciences,Beijing 100081,China

Invasive alien species are the most important indicators of environmental change worldwide;it may cause environmental degradation,biodiversity loss,food and water shortage,and high possibility and severity of natural *** in management of invasive species has grown rapidly in the recent years,and it is a good way to replace invaded plant by utilizing valuable native *** competition effects between the native Gramineous plant,Cogon grass,Imperata cylindrical and the invasive Compositae plant,Crofton weed,Ageratina adenophora were analyzed in the present study to provide basis for control of this invasive plant The results showed that,there was significant mutual antagonism between *** and *** relative competitive ability of *** was higher than that of ***,which heavily suppressed the growth of *** by shoot *** to ***,the seedlings of *** were germinated faster, and its plant height and average leaf area were *** culture with *** may restrain growth and tillering of ***,and the plant height,average leaf area and chlorophyll content were 49%,72%and 77%of those in monoculture,*** there no significant influence on *** for mixed culture with ***,furthermore,the tillering of *** can be *** relative yield(RY) of *** was significantly higher than those of A. adenophora,and the relative yield total(RYT) was significantly lower than *** relationships mentioned above may become more obvious with the prolonged time of mixed culturing.

关键词： Ageratina adenophora Imperata cylindrical Relative yield Competition effect replacement control

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