Split applications of herbicides
A normal weed control program would include a combination of a residual material, such as simazine or diuron, plus a contact material, such as paraquat or glyphosate. In recent years, better weed control in the tree row has been achieved when split applications of herbicides are used. Applying a half rate of a combination in the late fall after the fruit has been harvested, then applying the second half the following spring during June can provide better weed control. Split applications result in some residue being present for a longer period of time. The herbicide application in the fall helps prevent the development of annual winter weeds such as mustards. The second application helps control some of the later-germinating weeds, such as foxtails.
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