Herbicide Control Treatments for Invasive Trees and Shrubs Max Williamson

Herbicide Control Treatments for Invasive Trees and Shrubs

Max Williamson

Nonnative PlantsNonnative Plants

Crop,Crop, NaturalizedNaturalized InvasiveInvasive Ornamental,Ornamental, NoxiousNoxious Wildlife FoodWildlife Food Pest PlantPest PlantSoil StabilizerSoil Stabilizer

Promote ControlControl

Treatment OptionsFoliarBasal

Cut SurfaceDormant StemSoil Applied

Invasive Invasive TreesTrees• Tallowtree, PopcorntreeTallowtree, Popcorntree Triadica sebiferaTriadica sebifera (Sapium sebiferum)(Sapium sebiferum)

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

• Silktree, MimosaSilktree, Mimosa Albizia julibrissinAlbizia julibrissin


• 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


• Princesstree,Princesstree, Royal PaulowniaRoyal Paulownia Paulownia tomentosaPaulownia tomentosa



• PRINCESS TREE, ROYAL PAULOWNIA is deciduous, growing to 60 feet with large-heart shaped leaves and pecan-like seed clusters


• 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


• Tree-of-heaven or Tree-of-heaven or AilanthusAilanthus Ailanthus altissimaAilanthus altissima




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

• ChinaberrytreeChinaberrytree Melia azedarachMelia azedarach

Invasive Invasive TreesTrees

• Tree-of-heaven or Tree-of-heaven or AilanthusAilanthus Ailanthus altissimaAilanthus altissima




• CHINABERRYTREE is deciduous, growing to 50 feet with lacy, many-divided dark green leaves


• Large Trees

• Stem injections- Arsenal AC*, Pathway*, Pathfinder II, or Garlon 3A anytime except March and April


• Saplings



Foliar spray Garlon 3A, or Garlon 4 as 2 % foliar spray; Arsenal AC* at 1 percent. (July to October)


Invasive trees Russian Olive

(Elaeagnus angustifolia)

• RUSSIAN OLIVE a small thorny tree to 35 feet microscopic silvery scales covered leaves


• Large Trees

• Stem injections- Arsenal AC* or Garlon 3A, anytime except March and April


• Saplings



• Foliar spray Arsenal AC* at 1 percent; Glyphosate, Garlon 3A, or Garlon 4 at 2 percent. (July to October)


Invasive ShrubsInvasive Shrubs• Chinese & European PrivetChinese & European Privet Ligustrum sinense & L. vulgareLigustrum sinense & L. vulgare

• 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


AmurAmur

WinterWinter

MorrowMorrow


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

• 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)




at 10 percent, or Glyphosate at 20 percent.


• 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.


• NONNATIVE ROSES are deciduous except for Cherokee


• 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


• Autumn OliveAutumn Olive Elaeagnus umbellataElaeagnus umbellata

• Invasive RosesInvasive Roses Rosa sppRosa spp..



• AUTUMN OLIVE is a tardily deciduous brushy shrub, 3 to 16 feet 12 feet


• 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

• Silverthorn or Thorny OliveSilverthorn or Thorny Olive Elaeagnus pungensElaeagnus pungens





• SILVERTHORN, THORNY OLIVE is an evergreen, densely brushy shrub 3 to 25 feet






• Japanese PrivetJapanese Privet Ligustrum japonicumLigustrum japonicum

• Silverthorn or Thorny OliveSilverthorn or Thorny Olive Elaeagnus pungensElaeagnus pungens





• JAPANESE PRIVET is an evergreen to 35 feet, with an upward spreading canopy


• 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)


• 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


Invasive shrubs• Winged Burning Bush• Euonymus alata

• WINGED BURNING BUSH is a deciduous, multiple wing-stemmed, brushy shrub to 12 feet






Invasive shrubs• Sacred Bamboo, NANDINA• Nandina domestica

• SACRED BAMBOO or NANDINA is an evergreen multi-stemmed erect shrub reaching 8 feet


• Foliar spray wetting all leaves with Glyphosate at 1-percent (August to October)




at 10 percent, or Glyphosate at 20 percent.


• 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

Integrated Vegetation Management

Methods for Invasive Plants•Prescribed Burning•Mechanical •Manual and Motor-Manual•Biological Control•Herbicides

Control a little nowor

Control a bunch later

The End!!

Documents

Herbicide Control Treatments for Invasive Trees and Shrubs Max Williamson