Nutsedge Control in Onions - Monterey County

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Summmary• The Ventura trials shhowed good efficacyof Dual Magnum for controlling gyyellownutsedge in onions• It is unclear why therre is a difference inactivity of Dual Magnnum and Outlook inVentura County• No difference betweeen the two herbicideswas observed in Monnterey County
Summmary• Burning back nutseddge with acid fertilizerprovides an opportunity to make Outlookwork if nutsedge is emerged by the 2 ndtrue leaf stage• There may be a yieldreduction from thecaustic action of thefertilizer but it ismuch less than lettinng the nutsedge gouncontrolled
Page 1: Nutsedge Control in OnionsRichard S
Page 4 and 5: Nutlet forming atend of rhizomenutl
Page 6 and 7: 3. MéthodologieDes outils pédagog
Page 8 and 9: Timing of Nutssedge Control• In 2
Page 10 and 11: 2007 Nutseedge Trials• Yellow nut
Page 12 and 13: • At the 2 nd true leafstage nuts
Page 14: Post Acid Fertilizer Application
Page 17 and 18: Untreated Outlook 14.0 oz1 st true
Page 19 and 20: Nutsedge nutlets in the soil of the
Page 21 and 22: Yield Evalaluations
Page 23 and 24: Comparison ofYield - MeanLight vs H
Page 25 and 26: Untreated 7-7-0-7+OutlookGoal Tende
Page 27: Untreated 7-7-0-7 + Outlook 7+71 st
Page 30: Yield ofOnionsT//A
Page 33 and 34: Nutsedge emergged 5/21 to 6/26AAAAA
Page 35: Dual Magnum:nutsedge controlUntreat
Page 39: Acknowledgements• Bob Martin, Rio

Nutsedge Control in Onions - Monterey County

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