By Josh Henry and Brian Whipker, North Carolina State University
While out on an extension visit, we were walking through a field of pot grown Knock Out roses that had been held over from the previous year’s crop. The plants looked healthy, but one plant was found to have a large mass of growth near the base of the stem.
Click here to read more from Electronic Grower Resources Online (e-GRO), including sanitation practices for controlling agrobacterium and identification tips.
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