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Russian Olive Identification and Management
<br /> reddish, and have surfaces coated
<br /> sa with gray and scaly pubescence y
<br /> becoming smooth.
<br /> nce thought to be a beeficial k - r
<br /> ' •� O n
<br /> windbreak tree it since has . t
<br /> been deemed detrimental to the `• 3 :
<br /> +:T environment. Russian olive can
<br /> grow in a variety of soil and moisture
<br /> conditions, but prefers open, moist,
<br /> riparian zones. It is shade tolerant 7
<br /> and can be found along streams,
<br /> floodplains,fields and open areas
<br /> up to approximately 8,000 feet
<br /> in elevation. Russian-olive can >�
<br /> Russian olive(Elaeagnus outcompete native plants, interfere
<br /> angusti foilia)is a perennial tree or with natural plant succession and
<br /> shrub that is native in Europe and Asia. nutrient cycling,and tax water .•'��
<br /> The plant has olive-shaped fruits,silver reserves. Because Russian olive - -
<br /> color at first then becoming yellow- is capable of fixing nitrogen in its
<br /> red when mature. Russian olive can roots it can grow on bare mineral r- ,7 Rid; Ted►
<br /> reproduce by seed or root suckers. substrates and dominate riparian ',� ,
<br /> Seeds are readily spread by birds and vegetation.Although Russian oliveV,
<br /> can remain viable for up to 3 years. provides a plentiful source of edible kk
<br /> ,, '., ► `., nn
<br /> Spring moisture and slightly alkaline fruits for birds, ecologists have found
<br /> soil tend to favor seedling growth. that bird species richness is actually
<br /> The plant's extensive root system higher in riparian areas dominated by %�� G30
<br /> sprouts root suckers frequently. The native vegetation. �; V, *71, IV",tree can reach up to 3o feet in height "?
<br /> with branches that have 1 to z inch The key to effective control of
<br /> thorns. Leaves are z to 3 inches long, Russian olive is preventing Z
<br /> alternate, narrow,and have simple establishment of the trees or shrubs. t l y
<br /> blades with smooth edges. The leaf's If plants are already present,control ' N
<br /> lower surface is silvery white while options include cut-stump treatments ct O
<br /> the upper surface is light green in and mechanical mowing. These
<br /> color. Flowers are 4 small sepals in treatments depend on size and ,
<br /> light yellow clusters,fragrant,and location of the plant. Details on the �".l' 1 , ' L�
<br /> appear May through June. Fruits back of this sheet can help you create
<br /> mature from September to November. a management plan compatible with
<br /> Russian olive twigs are flexible, your site ecology. Potikk BT-c-W°
<br /> D
<br /> Q ussian olive is
<br /> ,a,�R,,,s�n �„�•,,,e,„k:,es 1 \designated as a "List Points
<br /> Ru••ianON,re a B"species in the Colorado
<br /> EIaPS angil9dfY i Ir.Cobaa:
<br /> Noxious Weed Act. It 1. Leaves are
<br /> t4� FAQ ,* T;` to- is required to be eithe silvery white.
<br /> r
<br /> eradicated,contained, or
<br /> ; . 3 r2.Branches have iiiiii
<br /> }=' � F suppressed depending
<br /> .�,•t on the local infestations.
<br /> For more information
<br /> ! ^ 'v visit www.colorado.
<br /> -- ova weeds and click Yellow-red
<br /> ••
<br /> - g � g/ on
<br /> 1 f on the Noxious Weed mature
<br /> plants.
<br /> - Management Program.
<br /> -- Or call the State Weed 4. Mature trees
<br /> Coordinator at the have shedding,
<br /> + - r t • i Colorado Department of reddish-brow
<br /> ! Agriculture, Conservation •-
<br /> —`-- ' ' -- Services Division,303-239-
<br /> ��.,-n __ -- w� �•. _ 4100.
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