Cultural Practices for Brush Management

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Cultural Practices for Brush Management

• Groundcover is key

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Groundcover

• Establishment
• Encouraging

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Groundcover Choices

• Crownvetch (Coronilla varia)
• Tall fescue (Festuca arundinacea)
• Fine fescue (Festuca spp.)
• Warm-season grass species
• Naturally occurring plant community

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Establishment Goals

• Selection Criteria
• Adaptation
• Maintenance
• Competitiveness
• Growth Habits

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Choosing the Right Mix

• Cool-season grasses
• Ph, soil quality
• Warm-season grasses
• Poor sites, low pH, low fertility
• Crownvetch
• Poor sites, rock outcroppings
• Naturally Occurring
• Secondary roads, successional communities

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Management Practices

• Mowing Program
• Cool-season
• Warm-season
• Crownvetch
• MM
• Weed and Brush Program
• Krenite Program

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Basal Bark and Cut Stump Treatments
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Purpose of Cut Stump Applications

• Used to selectively eliminate woody species
• Reduce stump sprouts on rights-of-way
• Less frequent brushing cycles
• Labor and cost saving

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Herbicides for Cut Stump Treatments

• 25 v/v Garlon 4 plus 75 v/v basal diluent
• Alternative Herbicides
• Garlon 3A (triclopyr)
• Accord (glyphosate)
• Krenite S (fosamine ammonium)
• Arsenal, Stalker (imazapyr)
• BK 800 (2,4-D, 2,4-DP, and dicamba)
• Tordon 101 (picloram plus 2,4-D)
• Vanquish (dicamba)

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Ready to Use Formulations

• Pathfinder II (triclopyr)
• Pathway (picloram plus 2,4-D)

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Purpose of Basal Bark Applications

• Selectively control unwanted trees
• Minimize groundcover damage
• Timing flexibility
• Labor and cost savings

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Herbicides for Basal Bark

• Garlon 4 (triclopyr)
• Pathfinder II (triclopyr)
• Stalker (imazapyr)
• Tordon K (picloram)

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How Triclopyr Works

• High concentrations inhibit cell division and
  growth
• Movement to the root system is unclear
• Depends on variables including physiological
  activity of plant, target species, diluent and
  concentration.
• Stimulates ethylene production causing epinastic
  symptoms

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Basal Diluents

• Petroleum- or vegetable-based oils
• Examples include
• HyGrade
• Arborchem Basal Oil
• Penevator Basal Oil
• Penevator Vegetable Oil
• JLB Oil Plus

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Tree Growth Habit

• Suckering versus non-suckering species

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Application Timing

• Non-suckering species effectively controlled
  anytime
• Suckering species
• Best controlled during active growth
• Reduced control during dormant season and early
  spring when heavy sap flow occurs.