Home > Trees & Shrubs > Sick leaves of oak with white dust Sick leaves of oak with white dust Viewing 3 posts - 1 through 3 (of 3 total) Author Posts September 4, 2020 at 10:54 am Reply minervaGreenhorn Private message Hello, my small oak tree seems to be sick with leaves that has white color on it. How to solve?? September 4, 2020 at 12:18 pm Reply CarolGreen Thumb (moderator) Private message Welcome to the Nature & Garden forum @minerva! 🙂 People here share their questions and knowledge on gardening. Let us know if you need help to discover how things work here, okay? 😉 Hope you’ll get responses soon! Carol, forum moderator “You got to be a gardener to appreciate dirty and muddy hands.” September 8, 2020 at 3:32 pm Reply LewisGreenhorn Private message This is powdery mildew. I came across an article on the site about this problem: https://www.nature-and-garden.com/gardening/powdery-mildew-leaf-treatment.html It has a handful of treatment recommendations. May your tree recovers soon! 🙂 Author Posts Viewing 3 posts - 1 through 3 (of 3 total) You must log in to post and answer topics. Sign up / Sign in Log In Username: Password: Keep me signed in Log In Also related to this topic Use dead leaves to fertilize and protect plants In fall, when trees and shrubs lose their foliage, a thick blanket of useful dead leaves forms in the garden. It is the season to unclog gutters and pick up leaves, and use them for gardens and vegetable plots to… Log in or Join → Ask my own question Meet the community Discover member gardens → Share my own garden UserOnline5 Readers onlineIncluding and 2 GuestsN&G Forum Categories Garden Chit-Chat Garden plants, Roses & Flowers Houseplants and Indoor growing Vegetables, Fruits & Herbs Trees & Shrubs Pets & Animals Plant search, identification & sharing seeds Can you answer these?Rowan Tree berries seem to have disappearedDe-Leafing my Black Tulip Magnolia?Calaidiums new customer of this great plantis bottom watering really effective?river of black ants crossing through the house Recent Topics Repotting or topdressing a kumquat tree Rowan Tree berries seem to have disappeared Washingtonia Robusta palm care? De-Leafing my Black Tulip Magnolia? Begonia Carolinafolia after two years has suddenly flopped so I’m wondering?