I have a beautiful pink crabapple that blooms wonderfully in the spring. however by july it looses most of it leaves. i have tried spraying it, i have used bayer insecticide that you mix and pour onto the roots.
I live in the country, i have noticed the crabapples that are in the city, still have thier leaves...
What can i do to keep my tree from loosing leafs.
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Defoliated crabapple
Crabapples are beautiful in the spring, but not so much when defoliated later in the season by disease. Your tree probably suffered from either Cedar-Apple Rust, or Apple Scab, so an insecticide wouldn't have done any good. Here is the link to the K-State publication on Crabapples. Follow the spray recommendations.
There are cultivars of Crabapple that are resistant to Cedar-Apple Rust and Apple Scab, so you might consider adding another resistant Crabapple to your landscape.
Carole
Johnson County Extension Master Gardener