Ask a Question forum: Tree Issues

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Oct 9, 2016 11:59 AM CST
Thumb of 2016-10-09/jlrouquette/614f0f

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This is the second time this season that the tree has done this. It goes from healthy one day to all of the leaves dying. A few days later new leaves sprout. I used the fungicide after the first time thinking it was a fungus. This picture is about a week after the second time all the leaves died, as you can see leaves have already grown back.

The tree has received regular morning time watering all summer.

Any advice would be much appreciated.
Name: Daisy I
Reno, Nv (Zone 6b)
Not all who wander are lost
Garden Sages Plant Identifier
Oct 9, 2016 3:58 PM CST
I'm not sure what kind of tree you have there and you have not told us where you live so...

It could be that the roots are getting too warm. Does your leaf die-off coincide with heat waves?
Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and proclaiming...."WOW What a Ride!!" -Mark Frost

Name: Elaine
Sarasota, Fl
The one constant in life is change
Cat Lover Master Gardener: Florida Tropicals Multi-Region Gardener Vegetable Grower Region: Florida
Herbs Orchids Birds Garden Ideas: Level 2 Garden Sages Celebrating Gardening: 2015
Oct 10, 2016 2:42 PM CST
Hi and welcome Welcome! If you would fill in your profile with your location we'll be able to give you better ideas as to why your tree is doing this.

It looks and sounds more like a watering issue to me, although fluctuating temperature would make that problem even worse. Have you pulled the tree out of its pot and had a look at the roots? A plant like that in a pot needs deep watering, usually with a hose or watering can and enough so that water comes out the bottom of the pot. As it's probably grown a lot over the summer, it also would need an increasing amount of water. So if it's just getting sprinkled with your lawn sprinklers, it's possible that the root ball has dried out too much, having just been wetted on the surface.

It's also possible that the tree has filled the pot up with roots, and that also may cause it to need a lot more watering than it's getting. So on cool days it might be ok, but on a sunny warm day, it would repeatedly wilt in the heat of the day and the leaves would die off after a few days of that.

Btw, Daconil is a very toxic fungicide both for you and your local birds, critters and insects and should be a last resort when you KNOW there is a fungal issue. Be careful about "using a sledge hammer to swat a fly" here.

"Success is stumbling from failure to failure with no loss of enthusiasm." –Winston Churchill

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