Powdery mildew is a fungal pathogen that results in grayish or white growth with a powdery texture appearing on leaves, buds, fruit and branches.
Powdery mildew is rarely a serious disease, and vigorous established apple trees handle an infection without long-term damage.
What is the white fluff on my apple tree?
Woolly aphid is common on edible and ornamental apple trees, pyracantha and Cotoneaster horizontalis. The insects produce a white waxy ‘fluff’ that can be mistaken for a mould.
How do you get rid of powdery mildew on apple trees?
These include jojoba oil, neem oil, and brand name spray oils designed for fruit trees. Classic fungicides that are used against apple scab, such as sterol inhibitors, are highly effective at controlling powdery mildew. These include myclobutanil and fenbuconazole.
How do you get rid of powdery mildew on fruit trees?
Spray on plants every one to two weeks. Potassium bicarbonate– Similar to baking soda, this has the unique advantage of actually eliminating powdery mildew once it’s there. Potassium bicarbonate is a contact fungicide which kills the powdery mildew spores quickly. In addition, it’s approved for use in organic growing.
Why does my plant have white fluff?
White fuzzy mold, also known as powdery mildew, is caused by the airborne spores of fungus. The fungus spores generally attach to a young leaf where it is able to germinate and grow, quickly spreading to other parts of the plant and nearby plants.