Holly Trees Are Getting Fewer Leaves

We have a row of 6 holly trees about 20 years old. The past 3-4 years, they have been losing leaves, and now have about 1/3 of leaves gone. We have put fertilizer sticks in ground. I think they get enough water. (we have an irrigation system) Any suggestions?

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1 Comment To "Holly Trees Are Getting Fewer Leaves"

#1 Comment By GKH_Susan On 11/03/2023 @ 1:55 am

You can prune out the stems without leaves. This information will help determine what is causing the leaf drop.

https://www.gardeningknowhow.com/ornamental/shrubs/holly/diseases-of-holly-bushes-pests-and-diseases-damaging-holly-bushes.htm ^[1]

https://www.gardeningknowhow.com/ornamental/shrubs/holly/holly-leaf-loss-in-spring.htm ^[2]

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[1] https://www.gardeningknowhow.com/ornamental/shrubs/holly/diseases-of-holly-bushes-pests-and-diseases-damaging-holly-bushes.htm: https://www.gardeningknowhow.com/ornamental/shrubs/holly/diseases-of-holly-bushes-pests-and-diseases-damaging-holly-bushes.htm

[2] https://www.gardeningknowhow.com/ornamental/shrubs/holly/holly-leaf-loss-in-spring.htm: https://www.gardeningknowhow.com/ornamental/shrubs/holly/holly-leaf-loss-in-spring.htm

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