Vegetation Management Control Methods and Specifications

INVASIVE PLANT MANAGEMENT TECHNICAL WEBINAR SERIES
Vegetation Management Control
Methods and Specifications
Joe Lentz
Arborchem Products, Inc.
Presented by the Center for Invasive Species Management
Sponsored by DuPont
Introduction
• Managing undesirable vegetation for low growing forbs, herbs, grasses, and shrubs
is essential for creating a competitive environment. Sixty years of vegetation
management research has provided credibility to the R/W industry by using all the
tools necessary to meet these objectives (Game Lands 33, www.arborchem.com/
training_research.html).
• The primary objective of a sound vegetation management program is to provide a
high percentage of control for all undesirable species. The tools chosen must then
allow the contractor to be productive while having no off-target damage.
• When setting up a vegetation management program, there are many factors to
consider. History (methods used in the past), brush density, height, species, R/W
type, sensitive areas, and environmental concerns.
• Traditional methods continue to be instrumental tools in managing growth
patterns. These methods include: hydraulic (high-volume foliar), low-volume
foliar, broadcast foliar, cut stubble, basal, cut surface, cut stump, and granular bare
ground applications.
• Managing the growth patterns vs. the mechanical maintenance (mowers,
chainsaws) of tall growing undesirable vegetation has proven to provide long term
control.
Introduction (continued)
• Ultra Low Volume (ULV) has been integrated into vegetation management
applications at rates varying from 1 to 5 gallons per acre. Applications include:
ULV Backpack, ULV Cut Stubble, ULV Broadcast Foliar, and ULV Side Trimming. By
utilizing the Thinvert® Application System applicators are more productive, increase
the percentage of control, and keep desirable low growing vegetation intact.
• Many of the invasive weed managers throughout the US have endorsed this
application because of its ultra-low rates and selectivity. Merging of the industries
has provided creditability to the R/W vegetation management programs by
educating the public and environmental groups with the new technology.
• A programmed approach enables vegetation managers to use the right tool in the
right place.
• Each tool is essential for meeting our goal when used appropriately.
• Selecting the right application and herbicide combination, as well as a consistent
cycle, is essential to a successful vegetation management program.
Cut Surface / Cut Stump Treatments
All woody stems that are cut shall be treated with herbicide utilizing cut surface or cut
stump treatments.
Cut surface treatment: The outer 1-inch (cambium area) shall be treated immediately
after cutting with a mixture of 50% Rodeo® herbicide in water for wetland areas or
Capstone™ herbicide for upland areas. Control is limited with spring applications during
high sap flow.
Equipment:
Tolco or Stihl 2-quart pump-up
spray bottle.
Cut surface application
Cut stump treatment: The entire bark area of the cut stump and exposed roots shall be
treated with a mixture of 25% Garlon® 4 Ultra in Arborchem® Basal Oil with marking dye.
The entire circumference to ground line shall be treated with a light spray anytime after
the cut is made.
• May be applied at any time of the year on all diameter trees.
Cut stump application
Low Volume Basal Treatment
This treatment is recommended for low density brush (less than 1,000 stems per acre)
with stems no larger than 5” DBH. Herbicide mixture is applied to the lower 12 – 18” of
the stem from the root collar up, completely encircling the entire circumference of the
stem.
• Thicker corky bark will require more material at the root flair without puddling.
• Applications can be made year round as long as the target is assessable.
ULV basal wand
with SS Y-3 tip
Birchmeier comfort kit
Birchmeier backpack 15K
Low Volume Basal Applications
Equipment: Birchmeier backpack with a B&G 24-inch ULV wand and a SS-5500 Y-3
nozzle.
Treat completely around the entire circumference of all stems.
Low Volume Basal Applications
Spray mixture will be determined by dominant species and land use guidelines.
• 20% Garlon® 4 Ultra + 5% Tordon® K + 75% Arborchem® T+G Basal Oil
• 25% Garlon® 4 Ultra + 1% Stalker® + 74% Arborchem® Basal Oil
• 20% Garlon® 4 Ultra + 3% Stalker® + 77% Arborchem® Basal Oil
• 25% Garlon® 4 Ultra + 75% Arborchem® Basal Oil
Low Volume Foliar Treatment
This treatment is recommended for low density brush (less than 1,000 stems per acre)
with maximum height of 8 feet.
• Entire crown and sides of targeted plants shall be sprayed with low volume
herbicide mixture during the foliar season.
• Spray mixture will be determined by dominant species and land use guidelines.
Equipment: Birchmeier or SP3 backpack with a low volume water gun (40006E + 1506E
nozzles).
Low Volume Foliar Application (Water)
20 GPA
Low Volume Foliar Results
One year results
Low Volume Foliar Applications
Spray mixture will be determined by dominant species and land use guidelines.
• 4–5% Krenite® S + 0.5% Arsenal® Powerline™ + 4 oz/100 gal Escort® XP +
1% Clean Cut
• 50 oz/100 gal Viewpoint® + 1% Clean Cut
• 4% Krenite® S + 50 oz/100 gal Viewpoint® + 1% Clean Cut
• 5% Rodeo® + 0.5% Arsenal® Powerline™ + 4 oz/100 gal Escort® XP + 1%
Clean Cut
ULV Foliar Applications (Backpack)
Treatment is recommended for low density brush (less than 1,000 stems per acre) with
maximum height of 8 feet.
Entire crown of targeted plants shall be sprayed with a light spray using an ultra low
volume herbicide mixture utilizing the Thinvert® Application System.
Equipment: Birchmeier backpack with ULV Thinvert® brush gun (SS81531 and SS15105
nozzles)
ULV Thinvert® vs. Water Applications
10 oz. per
minute
Water 3 pts
per minute
ULV Foliar Applications
Spray mixture will be determined by dominant species and land use guidelines.
• 7% Krenite® S + 1% Polaris® + 4 oz/100 gal Escort® XP + 92% Thinvert® RTU
• 7% Rodeo® + 1% Polaris® + 4 oz/100 gal Escort® XP + 92% Thinvert® RTU
• 7% Krenite® S + 1 oz/100 gal Viewpoint® + 93% Thinvert® RTU
• 7% Rodeo® + 1% Polaris® + 4 oz/100 gal Escort® XP + 92% Thinvert® RTU
(wetland areas)
ULV Thinvert® Backpack Application
Thinvert® application on
Japanese knotweed
ULV Thinvert® Backpack Results
ULV Cut Stubble Applications
Treatment is recommended for areas where dense, tall brush has have been reclaimed
by mowers. A Broadcast application of soil active, selective herbicides are applied in
Thinvert® RTU at a rate of 5 gallons per acre to the cut stubble. Application must be made
before resprouting begins, the ground cannot be frozen or saturated.
Note: This application is suitable where a 10 foot buffer on the R/W edge is acceptable,
typically transmission R/W. Distribution R/W are not candidates for this application.
Equipment: Kubota with 100 gallon SS
spray tank and 2 – ARB 1534 Widecast
nozzles (30-foot swatch), 5 GPA + 20
acres treated
ULV Cut Stubble Application
Mowing woody vegetation
Treat with selective-residual herbicides
after mowing and before resprouting occurs at 5 GPA
ULV Cut Stubble Results
One year results
Three year results
ULV Cut Stubble Applications
Spray mixture will be determined by dominant species and land use guidelines.
• 2 qts Tordon® K + 16 oz Polaris® + 4.5 gal Thinvert® RTU per acre (applied at
5 GPA).
• 2 qts Tordon® K + 16 oz Polaris® + 7 oz Milestone® + Thinvert® RTU per acre
(applied at 5 GPA.)
• 12 oz Viewpoint® + 4.25 oz Streamline® + 7 oz Milestone® + 99% Thinvert
RTU® (applied at 5 GPA).
Broadcast Applications
Treatment is recommended for areas where dense, tall brush have been reclaimed
by mowers. Apply a broadcast treatment with a Radiarc® sprayer over top of 1–2 year
vegetation. The re-sprouts must be hardened off for desired results. Carrier rate with
water is 50 gallons per acre and 0.5% MSO.
Equipment: Tractor- or truck-mounted sprayer capable of applying 40–50 gallons per
acre mounted with a Radiarc® sprayer (provides 35-foot swath)
Broadcast Radiarc® Application
30–60 foot swatch applied at 40–50 GPA
Broadcast Radiarc® Application Results
One year results
Broadcast Applications
Spray mixture will be determined by dominant species and land use guidelines.
• 1 qt Tordon® K + 3 qts Garlon® 3A per acre
• 1.5 gal Krenite® S + 7.5 oz Streamline® per acre
• 1.5 gal Krenite® S + 12 oz Viewpoint® per acre
• 1.5 gal Krenite® S + 12 oz Arsenal® PowerLine™ + 1.5 oz Escort® XP per acre
• 3 qts Rodeo® + 14 oz Polaris™ per acre
• 1 gal Rodeo® + 14 oz Polaris™ per acre (wetland areas)
ULV Broadcast applications utilizing the Thinvert® Application System
• Area is mowed and vegetation is allowed to resprout and harden off before
application is made; and
• Treat undesirable vegetation with a broadcast application at 5 GPA utilizing the
Thinvert® application system
Equipment:
Kubota® with 100 gal. SS spray tank
and 2– ARB 1534 Widecast nozzles (30
ft. swatch), 5 GPA + 20 acres treated
Thinvert® Application System
5 GPA Krenite® - Escort® - Arsenal® Thinvert® RTU
One year results
ULV Broadcast Thinvert® Rates
• 7% Krenite® S + 7.5 oz Streamline® per acre
• 7% Krenite® S + 12 oz Viewpoint® per acre
• 7% Krenite® S + 12 oz Arsenal® + 1 oz Escort® XP per acre
• 7% Rodeo® + 14 oz Arsenal® + 1 oz Escort® XP per acre
• 7% Rodeo® + 14 oz Polaris™ per acre (wetland areas)
• Applied in Thinvert® RTU at 5 GPA
High Volume Foliar – Stem Foliar
Treatment is recommended for reclaiming areas of dense brush and trees with a
maximum height of 12 feet. Using a coarse spray, apply over the top of the brush.
Complete coverage of terminal ends, leaves, and stems is required.
Equipment:
200 – 300 gal. skid mounted hydraulic sprayer with minimum 400 ft. of 1/2 id hose and
high volume spray guns.
Application:
One year results:
High-Volume Foliar – Stem Foliar Applications
Spray mixture will be determined by dominant species.
• 2 qts Garlon® 3A + 1 pt Tordon® K + 5 oz Milestone® VM + 0.25% Clean Cut
• 2 qts Garlon® 3A + 7.5 oz Streamline ® + 0.25% Clean Cut
• 1.5% Krenite® S4 + 7.5 oz Streamline® + 0.25% Clean Cut
• 1.5% Krenite® S4 + 6 oz/100 Arsenal® PowerLine™+ 1.5 oz Escort® XP + 0.5%
Clean Cut
• 12% Viewpoint® + 0.5% Clean Cut
• 0.25% Tordon® K + 2 oz Escort® XP + 4 oz/100 Arsenal® PowerLine™ + 0.25%
Clean Cut
• 4 qts Rodeo® + 2 oz Escort® XP + 6 oz/100 Polaris® + 0.5% Chemsurf™ 90
(wetland mix)
Selective Pellet – Granular
• This treatment is for selective application to scattered brush around tower bases.
• Labeled rates of herbicide area applied to the base of the target stems.
• Should not be applied with the ground frozen, where runoff to non-targeted area
can occur, or where desirable non-target root systems may come in contact with
the treated area.
Application:
Results:
Applications:
Application Rates
• Spike® 20P
• Arsenal® 5G + S-5 tebuthiuron blend
• Topsite™
Spike, Rodeo, Garlon, Tordon, Milestone, and Capstone are registered trademarks of Dow AgroSciences LLC.
Arsenal and Stalker are registered trademarks of BASF.
PowerLine is a trademark of BASF.
Krenite, Viewpoint, Escort, and Streamline are registered trademarks of DuPont.
Polaris is a trademark of DuPont.
Topsite is a trademark of SSI Maxim Co., Inc.
Chemsurf is a trademark of Chemorse, Ltd.
Thinvert and Radiarc are registered trademarks of Waldrum Specialties, Inc.
Arborchem is a registered trademark of Arborchem Products.
Clean Cut is an Arborchem product.
INVASIVE PLANT MANAGEMENT TECHNICAL WEBINAR SERIES
Joe Lentz
Arborchem Products
joelentz@arborchem.com
www.arborchem.com
All presentations included in this webinar will be available for viewing
(with recorded audio) approximately two days after airing at:
www.weedcenter.org/technicalwebinars/recordings
Presented by the Center for Invasive Species Management
Sponsored by DuPont