Pistachio Trees
Q.

Pistachio nut tree giving a hollow nut. There is a shell but nut meat. What could be the problem?

Zone 85607 | sharron.park added on January 31, 2019 | Answered

I am asking for a eldery gentleman who does not have a computer.

A.
A.Answers to this queston: Add Answer
Downtoearthdigs
Certified GKH Gardening Expert
Answered on January 31, 2019

Do you have functional male and female trees? Males must be available to provide the pollen for pollination.

In some cases, pollination may occur, but because of weather conditions or nutrient issues, fertilization may not, resulting in shriveling of the ovule rather than fruit development. Pollination can stimulate fruit set, but then the nuts fail to fill.
Nutrition can play a role; boron deficiency can be a factor in some areas.
A soil test can help you determine if this is the issue.
Weather temps can also effect nut growth.
Drought stress can also effect nut growth.
https://www.gardeningknowhow.com/garden-how-to/gardening-by-zone/zone-9-10-11/zone-9-nut-trees.htm

00
Was this answer useful?

Log in or sign up to help answer this question.
Did you find this helpful? Share it with your friends!

You must be logged into your account to answer a question.

If you don't have an account sign up for an account now.

Looking for more?
here are more questions about...
Pistachio Trees
Join Us - Sign up to get all the latest gardening tips!

Do you know a lot about gardening?
Become a GKH Gardening Expert

Learn More