08-05-2016—The Plant-Destroyer (Phytón-Phthorá)

Purchased Aeonium ‘Shamrock' from clearance pile at Home Depot. Noticed an area where the tips were brown and thought it was sun damage. Cut off brown parts and planted. Below is photo two weeks later. Tissue necrosis across the plant. Phytophthora? Didn't know cacti/succulents were susceptible to Phytophthora, but that's what it looks like.
Aeonium ‘Shamrock'