Odd white markings on plant leaves

No visible insects, one plant lost and another at risk. Doesn’t seem like powdery mildew. Haven’t seen it before.

2 Comments (Open | Close)

2 Comments To "Odd white markings on plant leaves"

#1 Comment By Downtoearthdigs On 09/25/2017 @ 6:31 pm

This looks like it may be a case of Downy Mildew.

https://www.extension.umn.edu/garden/yard-garden/flowers/managing-impatiens-downy-mildew-in-landscape/ ^[1]

#2 Comment By Garberja On 09/25/2017 @ 6:44 pm

Thanks so much! These are (were) house plants. How on earth did this happen? I’ve had them for 6 years, vigorous bloomers, lovely strong plants. We did move in May… could the house somehow be the problem? Lots of fresh country air and open windows. Cause??

Article printed from Gardening Know How Questions & Answers: https://questions.gardeningknowhow.com

URL to article: https://questions.gardeningknowhow.com/odd-white-markings-on-plant-leaves/

URLs in this post:

[1] https://www.extension.umn.edu/garden/yard-garden/flowers/managing-impatiens-downy-mildew-in-landscape/: https://www.extension.umn.edu/garden/yard-garden/flowers/managing-impatiens-downy-mildew-in-landscape/

Have any questions about this topic? Visit us at https://questions.gardeningknowhow.com to ask your questions and get friendly answers from gardening experts.

You can also find us at:
'Like' us on Facebook: https://www.facebook.com/gardeningknowhow
Follow us on Twitter: https://twitter.com/gardenknowhow - @gardenknowhow
Follow us on Pinterest: https://pinterest.com/gardenknowhow/