up close dieffenbachia leaf

In this up-close photo, you can see the gray spots that are appearing on several of the dieffenbachia leaves. From the picture the gray spots look more like a burn rather than a fungal problem. Must fungus will have a halo appearance instead of a monochromatic spot. The fungual spot usually has a reddish or brown center and a yellowish halo. See pest & diseases associated with dieffenbachia.

This information provided by Flower Shop Network.