Top Questions About Walnut Trees

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Questions About Walnut Trees

Asked by
tessinadelille on
April 1, 2019
Berlin

Q. Can walnut shells, branches and leaves go in the compost?

I read they can be toxic and therefore should stay out of the compost pile. What do you think? Thank you!

Answered by
Downtoearthdigs on
April 1, 2019
A.

You can compost these parts of the tree, though you will need to wait the appropriate time before using this composted material.
These links have more information.

https://www.extension.iastate.edu/news/2005/jul/070701.htm
https://www.gardeningknowhow.com/garden-how-to/info/allelopathic-plants.htm
https://www.gardeningknowhow.com/composting/ingredients/nut-shells-in-compost.htm

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Asked by
donz1935 on
July 22, 2019
North Royalton,Ohio 44133

Q. why are the leaves turning Brown ?

My Walnut tree — the leaves are turning brown and curling up, and the walnuts don’t seem to be getting bigger. What is the problem ?

Answered by
Downtoearthdigs on
July 23, 2019
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Asked by
Anonymous on
August 20, 2019

Q. picking walnuts early

I have lots of walnuts on my tree for the second year but last year squirrels stripped the tree virtually overnight. Having just seen them again in my tree is there any point in me picking the walnuts still green and definitely not ripe yet. Will they ripen off the tree?

Answered by
GKH_Susan on
August 21, 2019
Certified Expert
A.

I couldn't find any refernce that said nuts could be picked early. Since harvesting involves shaking the nuts loose from the tree, unripe nuts probably won't drop.

http://homeorchard.ucdavis.edu/8005.pdf

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Asked by
tammyhs on
November 2, 2019
37355

Q. Why Would Walnuts Be Moldy On The Inside When Cracked?

We bought property with 2 mature grafted walnut trees. We didn’t have any fruit last year because of a late spring freeze. This year, we had plenty of nuts, but when cracking them open, 80% of them were moldy on the inside. No sign of breach in the shells. What would cause this? Is there any way to keep it from happening next year?

Answered by
BushDoctor on
November 4, 2019
Certified Expert
A.

It sounds like a very common Walnut blight, Xanthomonas juglandis

This website will help: https://www2.ipm.ucanr.edu/agriculture/walnut/Walnut-Blight/

This article will help with fungicide use: https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm

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