US (MI): 24c label for Spartan 4F on strawberry
The new Spartan 24c label allows the use of Spartan at a rate of 8 fluid ounces (0.25 pound active ingredient) per application, with a total of 12 fluid ounces (0.375 pound active ingredient) per acre per year in two applications. It may be applied before or after transplanting a new field, at renovation or after fall dormancy. It also may be applied in spring before strawberry plants produce new growth.
Spartan is a very effective herbicide. It controls several difficult strawberry weeds, including common groundsel, common lambsquarters, ladysthumb, mayweed, redroot and Powell pigweeds, pineappleweed, prostrate knotweed and wild buckwheat. Spartan may injury newly-emerged leaves of strawberry plants, so avoid application during periods of new growth. Apply after mowing at renovation.
There is a 70-day pre-harvest interval. For areas in Michigan that begin harvest in early June, the spring dormant herbicide should be applied in late March. Spartan probably is most effective when applied at renovation to control mid- and late-season weeds.
The label is not posted on CDMS as of April 25, 2018, but it should be posted soon. The printed labels should be available from dealers soon.
Source: Michigan State University (Bernard Zandstra)