Multiflora Rose Control

Bulletin 857

Other Application Methods

1. Crossbow is labeled for control of smaller multiflora rose when applied by the thinline basal method. This procedure proved unreliable in several seasons of Ohio research.
2. Spike 80WP is labeled for multiflora rose control when applied as a thin band of concentrated spray mixture (1 pound product in 1 gallon water) placed under the dripline areas of plants using a backpack or hand-carried sprayer fitted with 10 psi pressure-limiting valve and 0003 straight-stream nozzle tip. This is an easy, rapid, and effective way to treat rose and other undesirable vegetation. Unfortunately, Spike 80WP is only available for use in industrial vegetation control. Extensive Ohio research showed superior results using this technique compared with Spike 20P. The precautions listed for Spike 20P also pertain here.
3. Cut-stump herbicide treatments with picloram (Pathway), imazapyr (Arsenal, Stalker), triclopyr (Pathfinder II), etc. can be used to kill the roots and crown after large rose plants are cut near ground level. These may be useful when only a small number of multiflora rose and other brushy species need to be removed from a property. Research at Purdue University has shown these treatments to be very effective, but they were not included in Ohio State research.

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