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Gardening Know How Questions & Answers - https://questions.gardeningknowhow.comIt’s about 10 years old and has been beautiful every year until this spring.
I live in southern Arizona.
We did have the coldest winter in the 12 years I’ve been here with over a month of consecutive nights below freezing. It did warm in the day time to almost normal temps. — 40-60 degrees.
I have babied this tree since I brought it home as a “branch” from a nursery. The fact that it grew at all was amazing.
This is very depressing. What can I do?
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[1] https://extension.arizona.edu/locations: https://extension.arizona.edu/locations
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1 Comment To "My Desert Willow looks terrible and the leaves are just tiny clusters at the ends of branches. What’s going on?"
#1 Comment By GKH_Susan On 08/03/2019 @ 6:25 pm
It may be an insect or mite pest, possibly thrips. It’s really hard to see details from the photos, but I think I see leaf stippling/spotting, and then the stunted growth is characteristic of some thrips infestations. I think it will take a keen experienced eye on site with a hand lens to look for tiny black enlongated insects. Nutrient deficiency is another possibility, but I lean toward the pest problem as best guess.
I suggest that you contact your local U of A extension office and see if they will send out a home horticulture advisor, or give you a location to take a sample of the foliage. It should be a free service. The alternative is to hire a consulting arborist, plant health care specialist or a certified arborist from a tree service that provides tree and landscape pest control.
https://extension.arizona.edu/locations [1]