Removal of canes will not provide control; however, cutting canes is an important component in combination with other methods. Mechanical Methods Mowing – Cutting or chopping the top growth of Himalayan blackberry will stimulate formation of suckers from lateral roots and induce further branching and cane production. Mowing should only be viewed as a shortterm suppression practice to be used in areas with gentle topography BlackBerry Study Materials (slopes are not over 30 percent), few obstacles (logs, stumps, boulders, etc.), and where soils are not highly prone to erosion, compaction, or excessive moisture. Repeated mowing over multiple years may suppress growth but will not keep the top growth from rapidly returning. A tractor-mounted mower is ideal for larger populations on level terrain; a Best Dumps hand-held weed-eater is sufficient for smaller populations. Cut top growth early in the growing season and again when the plants are about 18 inches high. Cuttings may be raked, burned, or left as mulch onsite. Mowing is best used in combination with other methods such as: (1) application of a foliar herbicide on the 18 inch regrowth; (2) hand removing roots and root crowns; or (3) using a cut-stump application of herbicide to the canes at the time of mowing.
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