Management of Vegetation by Alternative Practices in Fields and Roadsides

Table 13

Mass of vegetation harvested from plots treated with alternative herbicides or a conventional herbicide applied to mowed or unmowed roadside plots (Roadside Experiment  2).

Herbicide	Application^†; a.i. L ha^−1	Mass of vegetation, g fresh wt m^−2
		Mowed^‡	Unmowed
Clove oil	34	950	773
Pelargonic acid	13	773	926
Limonene	18	980	900
Clove oil and	34	1,011	814
limonene	18
Citric acid-	25	1,074	1,059
acetic acid	19
Glyphosate	2.8	0	0
None		971	968
Mean		823	786

^†a.i.: active ingredient.
^‡Mowed to 10 cm height above ground.
Except for the effect of glyphosate, which differed from all other treatments, neither herbicide treatment or mowing nor their interaction had a significant effect on mass . LSD for the interaction. Mowing and not mowing did not differ by -test, .