The efficacy of glyphosate as affected by rate, time of application, and addition of surfactant was evaluated on blackberry, Japanese honeysuckle, poison ivy, sericea lespedeza, and trumpetcreeper. The addition of surfactant (0.5% v/v) to glyphosate had no effect on the control of the weeds studied. Glyphosate applied in mid-June to September at 1.1 or 2.2 kg/ha controlled blackberry. Mid-August glyphosate applications of 2.2 kg/ha controlled 83% of actively growing Japanese honeysuckle; there was less than 75% at one site due to moisture stress. Use of 2.2 kg/ha of glyphosate from mid-June through mid-August controlled 87% of poison ivy. Consistent commercially acceptable control of sericea lespedeza was obtained when glyphosate was applied at 1.1 or 2.2 kg/ha at the time of flowering. Applying glyphosate at 1.1 or 2.2 kg/ha from late July through early October controlled 50% or more of the trumpetcreeper.
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Weed science
卷
37
ISSN
0043-1745
页码
v.360-364(3)
其它主题
Dosis de aplicacion; Dose d' application; Epoca
语言
英语
注释
references.
类型
Journal Article; Journal Part
来源
Weed-science (USA). (May 1989). v. 37(3) p. 360-364.
团体作者
North Carolina State Univ., Raleigh, NC
2012-11-15
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