Noticed that most of the trees in my neighbor's yard, who does not garden, seem to be struggling. In particular, this magnolia (which the previous owner planted) is looking really bad, and since I work very hard on my gardens, and they are in close proximity, I don't want mine infected. The magnolia leaves are turning black, sticky and nearly all the wood is just coated in this fungus/scale. What should I tell my neighbor? Should I be worried for my plants , in particular I have a dogwood bush and a french pussy willow within 5 to 8 feet of this, as well as my own new magnolia.
Dakota County Minnesota magnolia scale
What you are likely observing is Magnolia scale. It only affects magnolias so the other plants are safe. You are correct to be concerned about your magnolia tree. Here are some informative resources to share or to help you recognize the signs on your own tree and how to treat it. 1. http://hyg.ipm.illinois.edu/article.php?id=91 2. https://extension.entm.purdue.edu/publications/E-29.pdf 3. http://www.extension.umn.edu/garden/insects/find/scales/soft-scales-deciduous/
Thank you, I went and checked my little magnolia (about 2.feet tall and wide) and sure enough, those were on it! About a dozen or so. Grrr. I am glad I know so I can treat it. When I see my neighbor I will let him know, I am sure he will just cut it down/remove tree
You are welcome