Association of Spirea Stunt Phytoplasma with a Disease of <i>Spiraea</i> spp. in Minnesota

Fig. 1. Symptoms in spirea stunt phytoplasma-infected Spiraea japonica ‘Little Princess.’ (B) Infected shoot at left showing witches’-brooming and miniature leaves. Healthy shoots at right.



Image from Plant Health Progress article:
Association of Spirea Stunt Phytoplasma with a Disease of Spiraea spp. in Minnesota