herbicide control treatments for invasive trees and shrubs max williamson
TRANSCRIPT
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Herbicide Control Treatments for Invasive Trees and Shrubs
Max Williamson
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Nonnative PlantsNonnative Plants
Crop,Crop, NaturalizedNaturalized InvasiveInvasive Ornamental,Ornamental, NoxiousNoxious Wildlife FoodWildlife Food Pest PlantPest PlantSoil StabilizerSoil Stabilizer
Promote ControlControl
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Treatment OptionsFoliarBasal
Cut SurfaceDormant StemSoil Applied
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Invasive Invasive TreesTrees• Tallowtree, PopcorntreeTallowtree, Popcorntree Triadica sebiferaTriadica sebifera (Sapium sebiferum)(Sapium sebiferum)
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TALLOWTREE or POPCORNTREE is deciduous,
growing to about 50 feet and has heart shaped leaves.
Recommended Control Procedures:
Large Trees
Stem injections Arsenal AC*, Garlon 3A, or Pathfinder II
anytime except March and April
Cut stumps -apply the herbicides immediately after cutting
(Ortho Brush-B-Gone and Enforcer Brush Killer)
Extensive infestations apply Velpar L .
Saplings
Apply Garlon 4 as 20% basal spray
Seedlings and Saplings
Foliar spray Arsenal AC* at 1 percent, Krenite S 30
percent, or Garlon 4 at 2 percent
*Nontarget plants may be killed or injured by root uptake
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• Silktree, MimosaSilktree, Mimosa Albizia julibrissinAlbizia julibrissin
Invasive Invasive TreesTrees• Tallowtree, PopcorntreeTallowtree, Popcorntree Triadica sebiferaTriadica sebifera (Sapium sebiferum)(Sapium sebiferum)
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• SILKTREE, MIMOSA is a deciduous legume, growing 10 to 50 feet with feathery leaves
• Recommended Control Procedures:
• Large Trees
• Stem injections- Arsenal AC* or Garlon 3A, anytime except March and April
• Cut Stumps-apply the herbicides immediately after cutting
• Saplings
• Apply Garlon 4 as 20% basal spray
• Resprouts and Seedlings
• July to October-Garlon 3A, Garlon 4, or Glyphosate as 2 % foliar spray
• July to September-Transline as 0.2 to 0.4 % foliar spray
*Nontarget plants may be killed or injured by root uptake
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• Princesstree,Princesstree, Royal PaulowniaRoyal Paulownia Paulownia tomentosaPaulownia tomentosa
• Silktree, MimosaSilktree, Mimosa Albizia julibrissinAlbizia julibrissin
Invasive Invasive TreesTrees• Tallowtree, PopcorntreeTallowtree, Popcorntree Triadica sebiferaTriadica sebifera (Sapium sebiferum)(Sapium sebiferum)
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• PRINCESS TREE, ROYAL PAULOWNIA is deciduous, growing to 60 feet with large-heart shaped leaves and pecan-like seed clusters
• Recommended Control Procedures:
• Large Trees• Stem injections- Arsenal AC* or Glyphosate,
anytime except March and April• Cut Stumps-apply the herbicides immediately
after cutting
• Saplings• Apply Garlon 4 as 20% basal spray
• Resprouts and Seedlings• July to October-Arsenal AC* 1 percent;
Glyphosate, Garlon 3A, or Garlon 4 as 2 % foliar spray
*Nontarget plants may be killed or injured by root uptake
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• Tree-of-heaven or Tree-of-heaven or AilanthusAilanthus Ailanthus altissimaAilanthus altissima
• Princesstree,Princesstree, Royal PaulowniaRoyal Paulownia Paulownia tomentosaPaulownia tomentosa
• Silktree, MimosaSilktree, Mimosa Albizia julibrissinAlbizia julibrissin
Invasive Invasive TreesTrees• Tallowtree, PopcorntreeTallowtree, Popcorntree Triadica sebiferaTriadica sebifera (Sapium sebiferum)(Sapium sebiferum)
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TREE-OF-HEAVEN, AILANTHUS is deciduous,
growing to about 80 feet and has long pinnately compound leaves.
Recommended Control Procedures:
Large Trees
Stem injections Garlon 3A, Pathway*, Pathfinder II, or
Arsenal AC* (midsummer best, late winter somewhat less
effective)
Cut stumps Apply the herbicides immediately after cutting
Saplings
Apply Garlon 4 as 20% basal application
Seedlings and Saplings
Foliar spray Arsenal AC* 1 percent, Krenite S 30 percent, Garlon 4 at 2 percent *Nontarget plants may be killed or injured by root uptake
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• ChinaberrytreeChinaberrytree Melia azedarachMelia azedarach
Invasive Invasive TreesTrees
• Tree-of-heaven or Tree-of-heaven or AilanthusAilanthus Ailanthus altissimaAilanthus altissima
• Princesstree,Princesstree, Royal PaulowniaRoyal Paulownia Paulownia tomentosaPaulownia tomentosa
• Silktree, MimosaSilktree, Mimosa Albizia julibrissinAlbizia julibrissin
Invasive Invasive TreesTrees• Tallowtree, PopcorntreeTallowtree, Popcorntree Triadica sebiferaTriadica sebifera (Sapium sebiferum)(Sapium sebiferum)
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• CHINABERRYTREE is deciduous, growing to 50 feet with lacy, many-divided dark green leaves
• Recommended Control Procedures:
• Large Trees
• Stem injections- Arsenal AC*, Pathway*, Pathfinder II, or Garlon 3A anytime except March and April
• Cut Stumps-apply the herbicides immediately after cutting
• Saplings
• Apply Garlon 4 as 20% basal spray
• Resprouts and Seedlings
Foliar spray Garlon 3A, or Garlon 4 as 2 % foliar spray; Arsenal AC* at 1 percent. (July to October)
*Nontarget plants may be killed or injured by root uptake
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Invasive trees Russian Olive
(Elaeagnus angustifolia)
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• RUSSIAN OLIVE a small thorny tree to 35 feet microscopic silvery scales covered leaves
• Recommended Control Procedures:
• Large Trees
• Stem injections- Arsenal AC* or Garlon 3A, anytime except March and April
• Cut Stumps-apply the herbicides immediately after cutting
• Saplings
• Apply Garlon 4 as 20% basal spray
• Resprouts and Seedlings
• Foliar spray Arsenal AC* at 1 percent; Glyphosate, Garlon 3A, or Garlon 4 at 2 percent. (July to October)
*Nontarget plants may be killed or injured by root uptake
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Invasive ShrubsInvasive Shrubs• Chinese & European PrivetChinese & European Privet Ligustrum sinense & L. vulgareLigustrum sinense & L. vulgare
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• CHINESE PRIVET, EUROPEAN PRIVET is semi-evergreen, bushy shrub to 30 feet
Recommended Control Procedures
• Foliar spray wetting all leaves with Glyphosate at 3-percent or Arsenal AC* at 1-percent. (April to December)
• Stems too tall for foliar spray
• Apply Garlon 4 as basal spray
• Cut stems and stumps treat with Arsenal AC*
or Velpar L* at 10 percent.
For safety to surrounding vegetation treat cut-
surfaces with Garlon 3A or Glyphosate at 20-percent
*Nontarget plants may be killed or injured by root uptake
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AmurAmur
WinterWinter
MorrowMorrow
Invasive ShrubsInvasive Shrubs• Chinese & European PrivetChinese & European Privet Ligustrum sinense & L. vulgareLigustrum sinense & L. vulgare
TartarianTartarian
• Bush HoneysucklesBush Honeysuckles Amur Amur ((Lonicera maakiiLonicera maakii)) Morrow Morrow ((L. morrowiiL. morrowii)) Tartarian Tartarian ((L. tartaricaL. tartarica)) Winter Winter ((L. L. frangrantissimafrangrantissima))
Amur
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• BUSH HONEYSUCKLE is deciduous, branched, multiple stemmed, with dark-green oval –to-oblong leaves
• Recommended Control Procedures
• Foliar spray wetting all leaves with Glyphosate at 2-percent (April to November)
• Stems too tall for foliar spray
• Apply Garlon 4 as basal spray
• Cut stems and stumps treat with Arsenal AC*
at 10 percent, or Glyphosate at 20 percent.
*Nontarget plants may be killed or injured by root uptake
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• Invasive RosesInvasive Roses Multiflora rose (Multiflora rose (Rosa multifloraRosa multiflora)) Macartney rose (Macartney rose (R. bracteataR. bracteata)) Cherokee rose (Cherokee rose (R. laevigataR. laevigata))
• Bush HoneysucklesBush Honeysuckles Lonicera spp.Lonicera spp.
Invasive ShrubsInvasive Shrubs• Chinese & European PrivetChinese & European Privet Ligustrum sinense & L. vulgareLigustrum sinense & L. vulgare
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• NONNATIVE ROSES are deciduous except for Cherokee
• Recommended Control Procedures
• Foliar spray wetting all leaves with- • Escort at 0.2 dry ounces per 3-gallon (April to
June) • Arsenal AC* at 1-percent or Escort at the above
rate (August to October)• Glyphosate, repeated applications, at 2 percent
(May to October)
• Stems too tall for foliar spray• Apply Garlon 4 as basal spray (Jan to Feb or May to Oct)
• Cut stems and stumps treat with Arsenal AC* at 10 percent, Glyphosate at 20-percent
*Nontarget plants may be killed or injured by root uptake
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• Autumn OliveAutumn Olive Elaeagnus umbellataElaeagnus umbellata
• Invasive RosesInvasive Roses Rosa sppRosa spp..
• Bush HoneysucklesBush Honeysuckles Lonicera spp.Lonicera spp.
Invasive ShrubsInvasive Shrubs• Chinese & European PrivetChinese & European Privet Ligustrum sinense & L. vulgareLigustrum sinense & L. vulgare
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• AUTUMN OLIVE is a tardily deciduous brushy shrub, 3 to 16 feet 12 feet
• Recommended Control Procedures
• Foliar spray wetting all leaves with Arsenal AC* or Vanquish*
at 1-percent. (April to October)
• Stems too tall for foliar spray• Apply Garlon 4 as basal spray ( Jan to Feb or May to Oct)
• Cut stems and stumps treat with Arsenal AC* at 10 percent or Glyphosate at 20 percent *Nontarget plants may be killed or injured by root uptake
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• Silverthorn or Thorny OliveSilverthorn or Thorny Olive Elaeagnus pungensElaeagnus pungens
• Autumn OliveAutumn Olive Elaeagnus umbellataElaeagnus umbellata
• Invasive RosesInvasive Roses Rosa sppRosa spp..
• Bush HoneysucklesBush Honeysuckles Lonicera spp.Lonicera spp.
Invasive ShrubsInvasive Shrubs• Chinese & European PrivetChinese & European Privet Ligustrum sinense & L. vulgareLigustrum sinense & L. vulgare
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• SILVERTHORN, THORNY OLIVE is an evergreen, densely brushy shrub 3 to 25 feet
• Recommended Control Procedures
• Foliar spray wetting all leaves with Arsenal AC* or Vanquish*
at 1-percent. (April to October)
• Stems too tall for foliar spray• Apply Garlon 4 as basal spray (Jan to Feb or May to Oct)
• Cut stems and stumps treat with Arsenal AC* at 10 percent or Glyphosate at 20 percent *Nontarget plants may be killed or injured by root uptake
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• Japanese PrivetJapanese Privet Ligustrum japonicumLigustrum japonicum
• Silverthorn or Thorny OliveSilverthorn or Thorny Olive Elaeagnus pungensElaeagnus pungens
• Autumn OliveAutumn Olive Elaeagnus umbellataElaeagnus umbellata
• Invasive RosesInvasive Roses Rosa sppRosa spp..
• Bush HoneysucklesBush Honeysuckles Lonicera spp.Lonicera spp.
Invasive ShrubsInvasive Shrubs• Chinese & European PrivetChinese & European Privet Ligustrum sinense & L. vulgareLigustrum sinense & L. vulgare
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• JAPANESE PRIVET is an evergreen to 35 feet, with an upward spreading canopy
• Recommended Control Procedures
• Foliar spray wetting all leaves with Arsenal AC* at 1 percent or Garlon 4 at 3 percent (August—September). Glyphosate at 3 percent (March to June)
• Stems too tall for foliar spray
• Apply Garlon 4 as basal spray (Jan to Feb or May to
October)
• Cut stems and stumps treat with Arsenal AC* or Velpar L* at 10 percent
For safety to surrounding vegetation treat cut-
surfaces with Garlon 3A or Glyphosate at 20-percent
*Nontarget plants may be killed or injured by root uptake
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Invasive shrubs• Winged Burning Bush• Euonymus alata
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• WINGED BURNING BUSH is a deciduous, multiple wing-stemmed, brushy shrub to 12 feet
• Recommended Control Procedures
• Foliar spray wetting all leaves with Arsenal AC* or Vanquish*
at 1-percent. (April to October)
• Stems too tall for foliar spray• Apply Garlon 4 as basal spray (Jan to Feb or May to Oct)
• Cut stems and stumps treat with Arsenal AC* at 10 percent or Glyphosate at 20 percent *Nontarget plants may be killed or injured by root uptake
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Invasive shrubs• Sacred Bamboo, NANDINA• Nandina domestica
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• SACRED BAMBOO or NANDINA is an evergreen multi-stemmed erect shrub reaching 8 feet
• Recommended Control Procedures
• Foliar spray wetting all leaves with Glyphosate at 1-percent (August to October)
• Stems too tall for foliar spray
• Apply Garlon 4 as basal spray
• Cut stems and stumps treat with Arsenal AC*
at 10 percent, or Glyphosate at 20 percent.
*Nontarget plants may be killed or injured by root uptake
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• PreventionPrevention
• Detection and MonitoringDetection and Monitoring
• Control and ContainmentControl and Containment
• RestorationRestoration
• ResearchResearch
• Education and ExtensionEducation and Extension
Invasive Plant Management ProgramsInvasive Plant Management Programs
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Integrated Vegetation Management
Methods for Invasive Plants•Prescribed Burning•Mechanical •Manual and Motor-Manual•Biological Control•Herbicides
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Control a little nowor
Control a bunch later
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The End!!