Table 8-2.

Broadleaf weed response to preplant incorporated and preemergence corn herbicides.

Eradicane

Sutan+

Atrazine

Atrazine + simazine

Bicep II, Bicep II Magnum

Bullet, Lariat

Dual II, Dual II Magnum

Frontier

FulTime, Harness Xtra

Guardsman, LeadOff

Harness, Surpass, TopNotch

Lasso, Micro-Tech, Partner

Prowl

Species

Balloonvine

--

--

G

GE

G

G

N

N

G

G

N

N

N

Burcucumber1

--

--

F

FG

F

F

N

N

F

F

N

N

N

Cocklebur

NP

NP

G

GE

G

G

N

N

G

G

N

N

N

Florida beggarweed

NP

NP

G

GE

G

G

F

F

G

G

F

F

N

Hemp sesbania

N

N

F

F

F

F

N

N

F

F

N

N

N

Jimsonweed

P

P

E

E

E

E

N

N

E

E

N

N

N

Lambsquarters

G

F

E

E

E

E

F

FG

E

E

F

F

F

Morningglory

N

N

G

G

G

G

N

N

G

G

N

N

N

Nightshade

F

P

E

E

E

E

G

G

E

E

G

G

P

Pigweed

G

G

E

E

E

E

G

GE

E

E

GE

GE

F

Prickly sida

PF

P

E

E

E

E

P

P

E

E

P

P

N

Ragweed, common

NP

NP

E

E

E

E

PF

F

E

E

PF

PF

N

Ragweed, giant

NP

NP

FG

G

F

F

N

N

F

F

N

N

N

Sicklepod

PF

PF

G

GE

G

G

N

N

G

G

N

N

N

Smartweed

N

N

G

GE

G

G

N

N

G

G

N

N

N

Tropic croton

--

--

G

GE

G

G

N

N

G

G

N

N

N

Velvetleaf

N

N

G

G

FG

FG

N

N

FG

FG

N

N

N

1Multiple flushes of germination; one application of any herbicide will seldom be adequate.

Key:

E = excellent, 90% or better control

G = good, 80 to 90% control

F = fair, 50 to 80% control

P = poor, 25 to 50% control

N = none, less than 25% control

-- = Insufficient data to rate