Invasive White Sweetclover (Melilotus officinalis) Control with Herbicides, Cutting, and Flaming
Invasive White Sweetclover (Melilotus officinalis) Control with Herbicides, Cutting, and Flaming
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DOI：
10.1614/ipsm-08-118.1
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发表时间：
2009-07
期刊：
影响因子：
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通讯作者：
J. Conn;S. Seefeldt
中科院分区：
文献类型：
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作者：
J. Conn;S. Seefeldt
摘要白色草木樨正在入侵阿拉斯加冰川河漫滩和邻近自然区的路边，需要采取控制措施。绿磺隆、2，4-DB、二氯吡啶酸、绿草定和2，4-D在温室中将白色草木樨幼苗控制在推荐量以下。绿磺隆以推荐的剂量（17.6克活性成分/公顷）、1/2和1/4剂量降低了田间已建植物的生物量，三氯吡氧乙酸和2，4-D以推荐的剂量（1，260和1，600克活性成分/公顷）降低了生物量。除草剂更有效地减少白色草木樨可行的种子生产在2007年比2006年。只有17.6克活性成分/公顷的绿磺隆（推荐用量）在这两年消除了种子生产。燃烧杀死了第一年的植物，但一些第二年的植物重新发芽并产生了可行的种子。切割在2.5或10厘米的高度没有控制第一年的植物，因为再生，和第二年的植物密度和种子产量减少切割在2.5厘米，但不切割在10厘米。名称：绿磺隆;二氯吡啶酸; 2，4-D; 2，4-DB;麦草畏;三氯吡氧乙酸;白色草木樨;草木樨（Melilotus officinalis（L.）Lam.
Abstract White sweetclover is invading the Alaska glacial river floodplains and roadsides adjacent to natural areas, and control methods are needed. Chlorsulfuron, 2,4-DB, clopyralid, triclopyr, and 2,4-D controlled white sweetclover seedlings below recommended rates in the greenhouse. Biomass of established plants in the field was reduced by chlorsulfuron at recommended (17.6 g ai/ha), 1/2, and 1/4 rates and was reduced by triclopyr and 2,4-D at recommended rates (1,260 and 1,600 g ai/ha). Herbicides were more effective at reducing white sweetclover viable seed production in 2007 than in 2006. Only chlorsulfuron at 17.6 g ai/ha (recommended rate) eliminated seed production in both years. Flaming killed first-year plants, but some second-year plants resprouted and produced viable seed. Cutting at the 2.5 or 10 cm height did not control first-year plants because of regrowth, and second-year plant density and seed production was reduced by cutting at 2.5 cm but not by cutting at 10 cm. Nomenclature: Chlorsulfuron; clopyralid; 2,4-D; 2,4-DB; dicamba; triclopyr; white sweetclover, Melilotus officinalis (L.) Lam.