See:
Greenhouse Plants, Ornamental - Shoot Proliferation and Leafy Gall
Notes The bacterium is capable of infecting at least 44 plant families and can infect woody and herbaceous plants, including both dicots and monocots. Herbaceous perennials are most frequently affected. Taking cuttings from infected plants, irrigating with infested water, and movement of infected plants between nurseries are the primary ways by which the disease is spread. The bacteria can be present on plant surfaces for months before symptoms develop. A proliferation of partially expanded buds or shoots (a leafy gall) is the main symptom of both woody and herbaceous plants. Symptoms may be confused with those caused by crown gall bacteria, growth regulator effects, somatic variations of plants in tissue culture, or eriophyid mite infestation. Disease management depends on prevention where sanitation is extremely important. Chemicals will not manage this disease.