Establishing Seeded Bermudagrass on Lawns, Golf Courses or ...

Table 2. Safety margins for herbicides applied at various timings to bermudagrass seedlings and the
target weeds controlled. Listed in approximate order of least phytotoxic to most phytotoxic on bermudagrass
seedlings with their appropriate application timing. Only products labeled for use on established
bermudagrass are listed. Table modified from Patton et al. (17).
Herbicide(s)
Drive 75DF w
(quinclorac)
Product
rate
(oz/A)
16 (1.0
pound)
Rate
(lb a.i.
per
acre)
Target weeds controlled
preemergently or
postemergently
0.75 Crabgrass, clover and other
broadleaves
MSMA 6.6 20-40 2.0 Crabgrass, goosegrass,
dallisgrass, sedges,kyllinga
Quicksilver w
(carfentrazone)
Revolver
(foramsulfuron)
Certainty
(sulfosulfuron)
1.0-2.1 0.015­
0.031
Clover, spurge, other
broadleaves
17.4 0.027 Annual bluegrass, perennial
ryegrass, goosegrass,
dallisgrass
1.25 0.06 Annual bluegrass, perennial
ryegrass, tall fescue,
sedges, kyllinga
Manor/Blade 0.5 0.019 perennial ryegrass,
broadleaves
Lontrel
(clopyralid)
Weedar 64
(2,4-D)
Banvel
(dicamba)
Trimec Classic
(2,4-D +
dicamba +
mecoprop)
Dimension 1EC
(dithiopyr)
Dimension 1EC
+ MSMA
Lontrel +
MSMA 6.6
Manor /Blade
(metsulfuron) +
MSMA 6.6
Corsair
(chlorsulfuron)
Sedgehammer
(halosulfuron)
Pendulum 60DF
(pendimethalin)
Barricade
65WDG
(prodiamine)
16 0.8 Clover, spurge, other
broadleaves
16 0.48 Clover, spurge, other
broadleaves
16 0.50 Clover, knotweed, spurge,
other broadleaves
28-56 0.42­
0.84
clover, spurge, other
broadleaves
64 0.5 Crabgrass, goosegrass,
annual bluegrass
64 + 40 0.5 +
2.0
16 + 40 0.8 +
2.0
0.5 + 40 0.019 +
2.0
Crabgrass, goosegrass,
dallisgrass, annual bluegrass
Crabgrass, goosegrass,
dallisgrass, clover, spurge,
other broadleaves
Crabgrass, goosegrass,
dallisgrass, perennial ryegrass,
broadleaves
2 0.09 Perennial ryegrass, tall fescue,
broadleaves, wild garlic
Pre or
Post u
Post
Post
Post
Post
Post
Post
Margin of safety
(delay after emergence)
Safe x to apply 1 WAE yz or
later. More injury on Yukon
(2,9,10, 18,21,29). The Drive
XLR8 formulation is reported
to have similar safety.
Safe to apply 1 WAE or later.
Sequential applications also
safe (2,9,10).
Label states “applied…7 days
or more after emergence.”
Safe to apply before seeding
or 1 WAE or later (1,10,30).
Safe to apply before seeding
or 1 WAE or later (1,30).
Applications 1 WAE will cause
moderate, but short lived phytotoxicity
(9,30).
Susceptibility
to
herbicide
injury v
Post Safe to apply 1 WAE or later
(9).
Post Safe to apply 1 WAE or later
(9).
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Post Safe to apply 1 WAE or later
(9).
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Post (10) ○
Pre +
Post
Pre +
Post
Post
Post
Post
Safe to apply 1 WAE or later
(2,18).
Safe to apply 1 WAE or later
(2).
Safe to apply 2 WAE or later
(21).
Safe to apply 2 WAE or later
(21).
Safe to apply 3 WAE or later
(1).
1.33 0.062 Sedges and kyllinga Post Safe to apply 3 WAE or later
(1).
40-80
(1.5-3.0
pounds)
18.4
(1.15
pounds)
0.9 +
1.8
Crabgrass, goosegrass and
some broadleaves
0.75 Crabgrass, goosegrass and
some broadleaves
Pre
Pre
Safe to apply 3 WAE or later
(1).
Safe to apply 3 WAE or later
(1).
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