Table 7.3.2. Efficacy and persistence of registered preemergence herbicides in NY

Common name Crabgrass Control
(4-6 weeks)
Crabgrass Control
(12-15 weeks)
Annual bluegrass control Broadleaf control Injury/Safety
bensulide E G E F Safe on annual bluegrass and bentgrass putting greens
oxadiazon E E G E Injures annual bluegrass, bentgrass and red fescue
bensulide plus oxadiazon E E G E Safe on bentgrass fairways
siduron F P P F Safe at time of establishment
dithiopyr E E G G Safe on bentgrass. Pre and Early post activity. Restrictions on use on LI
pendimethalin E E G E Injures close mown bentgrass and annual bluegrass
benefin E F G P Injures close mown bentgrass and annual bluegrass
trifluralin E F F P Injures close mown bentgrass and annual bluegrass
benefin plus trifluralin E G F P Injures close mown bentgrass and annual bluegrass
prodiamine E E G E Injures close mown bentgrass and annual bluegrass
E= excellent (>85% control)
G=good (75-85% control)
F=fair (65-75% control)
P=poor (<65% control)