Do you have a home remedy to treat white fungus on zuccuhini leaves?
My zucchini plants have a white fungus on the leaves and the have a
Certified GKH Gardening Expert
What you describe is likely to be "powdery mildew", a fungus disease. An advanced infection is difficult to control, and you will not be able to eradicate it from the infected foliage, but you can prevent further infection on new growth.
My choice would be Green Cure. http://www.greencure.net/baking_soda_formula_powdery_mildew.asp