Shasta Daisy Help

Question

I am having a hard time to figure out what is wrong with my Shasta Daisy. Is it fungus, slugs or snails, spiders. I am lost. I live in North Texas so this 3 year old plant gets lots of sun. It bloomed super this spring but now the leaves are all brown and have a kinda gray/ white circular spots.

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Answer 1

This is, definitely, a fungal infection. This is likely Downy Mildew.

Here are some articles that will help:

https://www.gardeningknowhow.com/plant-problems/disease/downy-mildew.htm

https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm

https://www.gardeningknowhow.com/ornamental/flowers/shasta-daisy/planting-shasta-daisies.htm