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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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