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广西园林菟丝子发生危害及药剂防除筛选试验
作者: 杜晓莉1  黄 梅2  马跃峰1 *  郭成林1  梁海波1  田 红3  江秀丽3  农 刚4  
单位: (1广西农业科学院植物保护研究所  南宁 530007;2南宁市景丽达园林绿化工程有限公司  南宁 530005;3长江大学农学院  湖北荆州 434023;4靖西县园林研究所  广西靖西 533800)  
关键词: 园林树木  菟丝子  危害  防治药剂  
分类号:S453
出版年,卷(期):页码:2011 ,42 ( 7 ): 页码:748-751
摘要:

【Objective】The occurrence and damages caused by different categories of Semen cuscutae were investigated in gardens of Guangxi, and efficient, economic and environmentally safe herbicides were evaluated to control the spread of S. cuscutae. 【Method】The annual growth dynamics and damages caused by different categories of S. cuscutae were investigated in Nanning, Beihai, Liuzhou and Wuzhou City and Jingxi, Debao and Pingguo County of Baise City. Nine different herbicides were evaluated to analyze their efficiency in controlling the spread of S. cuscutae. 【Result】The main categories of S. cuscutae in Guangxi gardens was found as Cuscuta reflexa Roxb., followed by C. japonica and C. australis R. Br. The damages caused by S. cuscutae were found closely related with temperature and humidity of air. It was found to harm the plants severely from June to September, which was the most important period for applying the control measures. The application of 6% bispyribac-sodium+sdp AS on meristem-tip and cane stems showed 100.0 and 97.8% control of S. cuscutae, which was safe for the garden plants such as Ficus microcarpa and Duranta repens cv.golden leaves, while the other herbicides were found phytotoxic to garden trees or inefficient on S. cuscutae. 【Conclusion】It is concluded that due to non toxic effects of 6% Tusite AS on garden trees and its high efficiency, and economic and safe use, it may be recommended for controlling the spread of S. cuscutae in gardens at the concentration of 333.3 mg/kg.

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