2005 Roadside Vegetation Management Training Seminar

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2005 Roadside Vegetation Management Training
Seminar

• Sidetrim
• Program Overview

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TVC-7712
PGR - 7711
HWC - 7713
W/B - 7713
Sidetrim - 7714
Basal Bark - 7715-03
J
F
M
A
M
J
A
S
O
N
D
J
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Program Objectives

• Maintain horizontal and vertical brush clearance
• Prevent forest invasion

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Why Krenite?

• Provides sidetrim
• limited translocation
• treat encroaching brush originating off ROW
  without 'chemical trespass'
• Reduced foliar symptoms
• little/no brown-out

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Why Krenite?

• Species misses
• boxelder maple
• Injurious to understory

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Injury Not Necessary

• With the currently available equipment, injury is
  a placement, not chemistry issue

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Norstar Sprayhead Set-up - Vertical
6 Pattern
Total of A 24 Pattern That Extends 28 High
6 Pattern
4 Pattern
4 Pattern
4 Pattern
Bottom 4 No Pattern
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Program Considerations

• Cycle length
• 1, 2 or 3 years?
• maintenance vs reclamation
• Balancing sidetrim vs species control spectrum

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Program Considerations

• Cycle length
• 1, 2 or 3 years?
• maintenance vs reclamation
• Balancing sidetrim vs species control spectrum

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Krenite Treatments

• Krenite Rate (11.75/qt)
• 4-6 qt/ac in combinations
• 8 qt/ac alone
• Is it Calibrated?

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Other Krenite Additives

• Arsenal 1 to 4 oz/ac (2.04/oz)
• adds spectrum - sometimes too much
• retains low profile - slow symptom onset
• Escort (17.00/oz)
• Garlon 3A (15.73/qt)
• Glyphosate (7.48/qt)

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Additive Summary

• When critically reviewed, research anecdotal
  accounts suggest results variable
• Research always based on premise that Krenite was
  primary ingredient
• ?

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Program SummarySidetrim

• Key is targeting - reach as high as possible
• pattern
• equipment set-up
• Best utility on narrower ROW
• not selective
• less understory to damage

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Program SummaryForest Invasion

• Pub 23 calls for 30 to 50 ft of clearance beyond
  ditch line or guiderail on cut and fill areas
• Great concept - use different approach

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Program SummaryForest Invasion

• Larger ROW
• Rely on mowing and fixed pattern Weed Brush to
  maintain Safety Clear Zone, backpack or handgun
  applications to maintain Selective Zone

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Basal Bark Targets removed Groundcover
intact
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