Ask a Question forum: Black Walnut Tree colors

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Name: Flyboy
Greenville, SC (Zone 7b)
Aug 12, 2016 6:37 PM CST
I have 2 Black Walnut trees 3 years old and 6 feet high. Both are in sunlight most of the day. One is lush dark green and the other is vary light green almost yellow. What is causing this?
Name: Elaine
South Sarasota, Florida (Zone 9b)
The one constant in life is change
Cat Lover Master Gardener: Florida Tropicals Multi-Region Gardener Vegetable Grower Region: Florida
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Aug 12, 2016 7:12 PM CST
Hi and welcome Welcome! Pictures would help us a lot to help you out here. If you can show both trees in one picture, plus a closer picture of the light green one that would be great.

It's most likely to be a difference in the soil pH causing the yellowish tree to become nutrient deficient. Is it closer to a concrete structure of some type, like a driveway or a sidewalk? The leachings from concrete can drastically affect the soil pH. That's the best I can think of off the top of my head. Please post some pictures!

"Success is stumbling from failure to failure with no loss of enthusiasm." –Winston Churchill
Name: J.R. Baca
Pueblo West Co. ( High Dessert (Zone 6a)
Aug 15, 2016 12:08 PM CST

This has affected me both personally AND professionally. I'll spare you the story and suggest you look up " Thousand Canker Disease ",a few years ago, I represented our local District in an emergency meet with the Co. Forestry Service. Pretty sad with what's happening. Hope this isn't it, but be vigilant.

Good Luck

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