sparky
Newly Registered
Posts: 2
Joined: Tue Aug 28, 2007 7:49 pm
Location: New Jersey

Fungus

Hi, can anyone offer advice.
This past spring I planted an exbury azalia, beautiful flowers, raised bed, morning semi shade afternoon more sun and shade.
Well established watering since planting.
My problem is late summer, my leaves are becoming snowy white, some are falling others not, i have been spraying with multi purpose fungacide, no great changes.
I really don't want to lose this shrub.
Any help would be appreciated.
Thank you,
Ira Kirsch

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Jess
Greener Thumb
Posts: 1023
Joined: Mon Mar 19, 2007 11:50 pm
Location: England

Hi sparky :D

It sounds like powdery mildew. A disease that azaleas are particularly prone to. It rarely causes any long term damage but can look very unsightly and as you said causes leaves to drop prematurely.
It happens when the Summer has been hot and dry so not much you can do about it apart from spraying which you are doing and keeping the plant as fit and healthy as you can.
Just one question. You mentioned watering regularly. Do you use rainwater? They are not too keen on tapwater tends to be too alkaline.

Newt
Greener Thumb
Posts: 1868
Joined: Wed May 26, 2004 2:44 am
Location: Maryland zone 7

Ira, you can use milk if it's powdery mildew. Yup, the stuff you put in your cereal. Is this what you see?
https://www.mobot.org/gardeninghelp/images/Pests/Pest72.jpg

If so, be sure to clean up all fallen leaves as often as you can and don't leave any on the ground over the winter. Here's how to use milk or baking soda.
https://www.ghorganics.com/page15.html

Newt

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