Herbicide Alternatives Research - Executive Office of Transportation
Herbicide Alternatives Research - Executive Office of Transportation
Herbicide Alternatives Research - Executive Office of Transportation
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(mechanical control); application <strong>of</strong> salts to desiccate vegetation (chemical); and application <strong>of</strong><br />
crop oils to defoliate plants (chemical). These methods are given a lower priority for<br />
experimentation because <strong>of</strong> the difficulties that may be involved in their use or because <strong>of</strong> a low<br />
possibility <strong>of</strong> their successful application.<br />
Table 2.1. Suggested methods for investigation <strong>of</strong> management <strong>of</strong> roadside vegetation<br />
under guardrails<br />
______________________________________________________________________________<br />
Method Type Comments<br />
______________________________________________________________________________<br />
Hand mowing Mechanical A mowing treatment to be accomplished by<br />
hand trimming <strong>of</strong> vegetation under<br />
guardrails<br />
Steaming Mechanical A heat treatment to be applied from an<br />
implement to be purchased<br />
Flaming Mechanical A heat treatment to be applied from handheld<br />
flaming tools powered by propane gas<br />
Mulching with<br />
organic materials<br />
Mechanical A surface covering to be applied from wood<br />
chips or other organic materials <strong>of</strong> local<br />
origin<br />
Acetic acid Chemical A spray application <strong>of</strong> acetic acid or mixes<br />
<strong>of</strong> acetic acid and other organic acids with<br />
nonselective action against young plants<br />
Pelargonic acid Chemical A spray application <strong>of</strong> a salt <strong>of</strong> a fatty acid<br />
with nonselective action against young<br />
plants<br />
Plant oils Chemical A spray application <strong>of</strong> clove oil or other<br />
phytoxic, naturally occurring plant oils<br />
______________________________________________________________________________<br />
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