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the Fate of Field Paspalum Control - The Paginator

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Fusilade II may be<br />

a viable alternative<br />

to MSMA for postemergence<br />

control<br />

<strong>of</strong> field paspalum in<br />

tall fescue, but it<br />

has limitations.<br />

perennial ryegrass plots, control ranged<br />

from 73% to 94%, and 91% to 98%<br />

control in <strong>the</strong> Tupersan-treated plots.<br />

<strong>The</strong> hard fescue developed more<br />

slowly and thus was more heavily<br />

colonized by field paspalum. In hard<br />

fescue, field paspalum cover ranged<br />

from 22% to 50% in Tenacitytreated<br />

plots, whereas only 5% field<br />

paspalum cover (94% control) was<br />

observed in Tupersan-treated hard<br />

fescue. This may be <strong>the</strong> first report<br />

<strong>of</strong> preemergence control <strong>of</strong> field<br />

paspalum at spring seeding in coolseason<br />

turf with any herbicide.<br />

Conclusions<br />

Fusilade II may be a viable alternative<br />

to MSMA for postemergence control<br />

<strong>of</strong> field paspalum in tall fescue, but<br />

it has limitations. Interestingly, Dr.<br />

Jim Brosnsan (at <strong>The</strong> University <strong>of</strong><br />

Tennessee) reported in 2010 that<br />

Fusilade II applied just one time in<br />

early spring at 0.09 lb. ai/A (5.6 fl. oz.<br />

product/A) provided 90% dallisgrass<br />

control. Conversely, when Fusilade<br />

II was applied in early summer, <strong>the</strong><br />

level <strong>of</strong> dallisgrass control was poor.<br />

<strong>The</strong> Fusilade II label is somewhat<br />

vague on how to use this herbicide.<br />

<strong>The</strong> label simply states that Fusliade<br />

II is to be used for <strong>the</strong> suppression<br />

and/or control <strong>of</strong> common bermudagrass,<br />

hybrid bermudagrass and o<strong>the</strong>r<br />

grass weeds in zoysiagrass and tall<br />

fescue. It is not for use on home lawns.<br />

<strong>The</strong>re is no mention <strong>of</strong> any paspalum<br />

species being a target weed on <strong>the</strong><br />

SUMMER 2011<br />

13

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