9/30/10 Varieties Planted: Sarah Berhardt - Festiva Maxima - Victoire de la Marne.

9/30/10

Varieties Planted:Sarah Berhardt - Festiva Maxima - Victoire de la

Marne

Suggested Peony Herbicides

Brand Name Active Ingredients

Pre Post

Pre

Post

Grass

Braodleaf

Alaska Registered

Gallery 75 DF isoxaben X X X X YES

Surlfan ASSurflan WDG

oryzalin X X X X X YES

Simazine Princep simazine X X X X NO

Kerb 50 WRestricted Use

pronomide X X X X X YES

Preen trifluralin X YES

Fusilade DX fluazifop X X NO

Stinger clopyralid X X? X YES

Poast(Grass Getter)

sethoxydin X X? X NO

Barricade prodiamine X X X X NO

Gramoxone & othersRestricted Use

paraquat X X X X YES

Round Up &Many generics

glyphosate X X X X YES

Freehand dimethnamid & pendimethalin

X X X? X X YES

Snapshot 2.5 TG trifluralin & isoxaben X X X? X X YES(under Anderson)

Outrider sulfosulfuron X X X? X X YES

Tower dimethenamid X X X? X X NO

EMERGENCE WEED PEONY WEED TYPE

UAF Farm Peony Study 2011

Weed Species

Snapshot X 4400 # per acre

Relative Prices$/Acre

Landscape Fabric 3’ ground cover with 5’ between rows =

$3,515

Flame Weeding Propane = 33 gal @ $4/gal =Labor = 4 plots (3’ x 14’) =1time took 6 minutes @ $20/hour =

$132$311$442

Hand Weeding 4 plots (3’ x 14’)2 times took 75 minutes @ $20/hour = $3,889

Cornerstone Plus $25/Gal @ 32 fl oz/A $6.26

Freehand $1.74/# @ 150#/A $261

Snapshot $1.60/# @ 100#/A $160

Outrider $14.61/oz @ 1.25 oz/A $18.26

Tower $295/Gal @ 21 fl oz/A $48.40