What causes dark red with yellow edged spots on Sago Palms?

I have 4 Sago Palms. One has deep red spots with a yellow ring around the outside edge of spots and the other three are starting to show the same spots on their foliage. What causes it and how do I treat it? They are all planted outside in the ground.

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1 Comment To "What causes dark red with yellow edged spots on Sago Palms?"

#1 Comment By Nikki On 03/21/2012 @ 7:20 am

It is likely a fungus. There are several that can create spots. Treat the plant with a fungicide and remove the affected fronds. I like neem oil, as it treats both fungus and pests, (should this be the culprit for causing the fungus) and is safe for people and pets. This article has more information on it: https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm ^[1]

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