Weed Response to Herbicides Used In Peanuts

Compiled by Dr. Greg MacDonald and Dr. Barry Brecke, University of Florida Weed Science.

PPI

PRE

AC

Prowl, Sonalan

Treflan

Dual Magnum

Frontier(2)

Lasso(2)

Pursuit(1)s

Strongarm

Zorial

Strongarm

Zorial + Dual Magnum or Lasso2

Dual Magnum or Lasso2

Frontier(2)

Valor

Dual Magnum or Lasso2

Pursuit

Perennials

bermudagrass

P

P

P

P

P

P

P

P

P

P

P

P

P

P

P

johnsongrass (rhizome)

P

P

P

P

P

P

P

P

P

P

P

P

P

P

P

nutsedge, purple

P

P

P

P

P

G

F

P-F

F

P-F

P

P

P

P

G

nutsedge, yellow

P

P

F-G

F

F

F-G

F

P-F

F

F

F

F

P

F

F

Grasses (annual)

broadleaf signalgrass

G-E

G

G

G

G

G

P

G

P

G-E

G

G

P

G

F

crabgrass

E

E

E

E

E

F

P

G-E

P

E

G

G

P

G

F

crowfootgrass

E

E

E

E

E

P

P

G

P

E

G

G

P

G

fall panicum

G

F-G

G

E

G

P-F

P

G

P

G

G

G

P

G

F

foxtail

E

G-E

E

E

E

G

P

P

E

E

E

P

E

G

goosegrass

E

G-E

E

E

E

F

P

G

P

E

G

G

P

G

F

johnsongrass (seedling)

E

G

F

F-G

P-F

G

P

F

P

P-F

F

F

P

P-F

G

sandbur

E

G

F-G

F-G

F-G

P

P

G

P

F-G

F

F

P

F

Texas panicum

G-E

G

P-F

P-F

P-F

P-F

P

P-F

P

P-F

P

F

P

P

P-F

Broad- Leaves

bristly starbur

P

P

P

P

P

F

E

F

E

F-G

P

P

F-G

F

F-G

burgherkin

P

P

P

P

P

E

F

G

F

G

P

P

F-G

P

F-G

citronmelon

P

P

P

P

P

P-F

F

F

F

P

P

F

P

cocklebur

P

P

P

P

P

G-E

G

P-F

G

P-F

P

P

F

P

E

coffee senna

P

P

P

P

P

F-G

P

F

P

F

P

P

E

P

F-G

copperleaf

P

P

P

F

P

P

E

E

P

P

F

E

P

P

cowpea

P

P

P

P

P

P

P

P

P

P

P-F

P

P

crotalaria

P

P

P

P

P

P-F

P

P

P-F

P

croton, tropic or woolly

P

P

P

P

P

P

P-F

G

P-F

G

P

P

G

P

P

day flower(3)

P

P

F

P-F

P-F

P

P-F

P-F

F

F-G

P-F

F-G

P-F

eclipta

P

P

P-F

P-F

P-F

P

G-E

P

G-E

P-F

P-F

F

G-E

P-F

P-F

Florida beggarweed

P

P

P-F

P-F

F

P

G

G

G

G-E

F

F

E

F-G

P

Florida pusley

E

E

G-E

G-E

G-E

G

G-E

G-E

G-E

G-E

G

G

G

G

F

hairy indigo

P

P

P

P

P

P

G

G

G

G

F

P-F

G

F

P

jimsonweed

P

P

P

G

G-E

F-G

G-E

F-G

P

P

P

G

lambsquarters

E

E

F

F

F

F

F-G

F-G

F-G

G

G

G

E

G

P

morningglory spp.

P

P

P

P

P

G

F-G

P-F

F-G

P-F

P

P

G

P

G-E

morningglory, cypressvine

P

P

P

P

P

G

F-G

F

F-G

F

P

P

G

P

G

morningglory, pitted

P

P

P

P

P

G-E

F-G

P-F

F-G

P-F

P

P

G-E

P

F-G

morningglory, smallflower

P

P

P

P

P

E

G-E

F

G-E

F

P

P

E

P

E

pigweeds

G-E

G-E

G

G

G

E

G

G

G

G

G

G

E

G

E

prickly sida

P

P

F

F

F

G-E

F-G

G-E

F-G

G-E

F

F

G-E

F

G

ragweed

P

P

P

P

P

P

G-E

G

G-E

G

P

P

G

P

P

redweed

P

P

P

G

G

G-E

G

G

F-G

F-G

G

F-G

sicklepod

P

P

P

P

F

P

P

F

P

F-G

F

F

P

F-G

P

smartweed

P-G

P-G

P

P

P

G

G

F

G

F

P

P

P

F-G

spider flower

P

P

G

P

P

F-G

spurred anoda

P

P

P

P

P

G

F-G

F

F-G

F

P

P

G

P

F-G

velvetleaf

P

P

P

P

P

F-G

G-E

F-G

G-E

F-G

P

P

P

G

wild poinsettia

P

P

P

P

P

E

G

P

G

P

P

P

G

P

G

wild radish

P

P

P

P

P

E

F

F

P

P

P

E

E=Excellent, G=Good, F=Fair, P=Poor. PPI=Preplant Incorporated PRE=Preemergence AC=At-Cracking (usually 6-14 days after planting). (1)Ratings for Pursuit PPI and PRE are similar. (2)Not Labeled for use in Florida. (3)Ratings for tropical spiderwort are similar. If no letter is given, response is unknown.