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Tamarisk or salteedar (Taniarix ramosissima) <br /> Ili I I � I Tamarisk is a deciduous shrub or small tree introduced into this country for erosion <br /> control,windbreaks and as an ornamental.Tamarisk is a phreatophyte,(see the article <br /> "What the Heck is a Phreato h te?")or moisture depend <br /> ant plant that is invasive in <br /> riparian areas.This noxious species eliminates competition by exuding salts and <br /> creating a saline soil unfavorable to other vegetation.Tamarisk reproduces by seed, <br /> and is a prolific seed producer,but seed longevity is just a few months. <br /> Due to this plants <br /> proximity to water, <br /> appropriate herbicide <br /> choices are limited to <br /> those that have an aquatic -. . k m P - ` <br /> ;. <br /> label or can be applied to ` x • . HI" <br /> water's edge.Arsenal is the ' <br /> most commonly used us <br /> Y�. <br /> , <br /> v <br /> FY I' b <br /> herbicide for foliar <br /> ♦ e J' <br /> application, ra <br /> P y ,if overs <br /> A"a Ina.risk t?o _r has potential to go into <br /> water use Habitat-same <br /> active ingredient with an -' <br /> aquatic label.Larger trees can be controlled by cut-stump treatments- ' <br /> cutting the tree at the base and applying an herbicide over the stump to Tamaiisk aloe,a local rewrvioi , <br /> prevent re-growth.Garlon or Habitat are frequently used for stump <br /> application. <br /> A leaf-feeding beetle,Diorhabda elongata,was released in Colorado in 2005,with promising results.Diorhabda beetles have <br /> significantly impacted the dense infestations of tamarisk in western Colorado and Utah.In Larimer County tamarisk is found in <br /> scattered stands near reservoirs and ditches,in densities too small to support diorhabda beetle life cycle and movement,making <br /> releases in this area impractical.Insect biocontrol is not an appropriate tool for tamarisk management when infestation levels are <br /> low enough that eradication is possible by other means. <br /> Mechanical treatments such as cutting,bulldozing,and fire are only temporarily effective.Sprouting is a problem and an <br /> herbicide application is necessary to prevent subsequent re-growth. <br /> •Top <br />