Laserfiche WebLink
Page I li of 23 <br />Hoary cress 1 White Top) <br />nl.~~nt:1 M1:~ 1 <br />Appendix I <br />Houry cress is typically li+und .m genorally opam, unshaded, disturbed ground (inarY Cre55 grOwx w'CII on <br />nikalinr soils that are wet In late spnng and generally does better m areas wnh moderate amounts uC <br />rainfall Ir IS N'IdClpra'ad In IIC.IdS, Waxll• places, rrlra(IOw9, paSlnrCS, croplands, and along rOad4(te_l Hoary <br />cress is comnumly frwnd with saltcedar, antelope bitterish, hluebun(h wheatgrass. big sagebrush. xnJ <br />14'vnming hig sagchnich I hwry arcs (lowers from May to luny, arc sell'-incompatible. and arx polhmm~l <br />by insects 1 hwrv cress will set srcd by mid-summer If condmuns arc 1'avaxnble, a second crop of seeds <br />can br produul in the (all Hauy crass spreads by creeping r(xxs and by sealing. <br />.~Ierhaniral Comrnl o(Hoare crews <br />Mowing ?- i limas a car Ibr several Aran may slow the spread and raxluec surd pnxluctton oC hewn eras <br />Mowing may Increase lhx elTeatacna~ss of subscyuent herbicide applicauun. Mouinµ sh(xdd he c(mdudcd <br />during die bud stage and repxatal whin thx plants rebel 17te r1Fa~tivrnxss of a mowing program wn be <br />incrrasrd he plonung paarnnml grosses as wmprmurs <br />13urn ('mttrol oC Hoary cress <br />Is not recommendal since l lauy cress has a rapid growth rate when compered to non noxious weeds <br />Chemical ('ontrol of Hoarv cress <br />I lwtry cress is nu>st armmonly cuntrollnl wnh herbicides However, mulnplx applications arc usually <br />na'aded to puwldc lasting control The bcs9 time to apply hxrhicides is in tiLry of tune bxfore Ilnwcring <br />l hr noncrop herbicides metsulCuron and chlorsulfurnn ore the most etl'rarttvc hrrhtct(A•s as long ns the <br />plane sell have gran tiss(Ir II is irnpartanl to use anon-ionic surt~ctant with the hrrfiic+Jr 2 4p r <br />