What's your question? Ask

Magnolia Trees

Q.We Have A Huge Old Banana Shrub (magnolia) For Several Years It Has Had Scale Insects. I Treated The Scale Insects With OTC Produs

Zone Eatonton GA gardening zone 7b | Anonymous added on September 22, 2023 | Answered

ts which didn’t work. Last summer I used imidacloprid as per the recommendation of our agricultural extension agent. Starting this spring the shrub kept putting on new growth which promptly fell off. The leaves have a yellow green color. a sample of the leaves were sent to the state agricultural pathologist who did not have an answer other than the shrub was old and in decline. Can you help? This is a very large specimen.

A.Answers to this queston: Add Answer
Certified GKH Gardening Expert
Answered on September 24, 2023

Here are the proper care requirements which may give a clue to what ails the tree:


Also, they prefer acidic soil and perhaps the soil has been getting less acidic over the years. Another thought is that the scale has returned. Try horticultural oil.


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...
Magnolia Trees
Join Us - Sign up to get all the latest gardening tips!

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