I Have A Star Magnolia Tree That Has Brown Nodules…
Kimberly Asked
I have a Star magnolia tree that has brown nodules growing up and down many of its branches. Is this something I should address or is it okay to leave alone? Also, during the summer, bees and flies swarm in this tree. Is this normal?
The Gardener’s Answer
Hi, Kimberly: Magnolia stellata, commonly known as Star magnolia, is a small, deciduous tree/shrub that is a welcome sight in the spring. Their star-shaped flowers are sure to put a smile on your face. For the most part these trees are free of insect and disease problems. They are not susceptible to cankers or galls. Since these nodules you are wondering about only occur on the branches, is it possible they are the dormant flower buds? If they have a fuzzy texture, this is certainly what you are referring to. It could also be leaf scars left from previous year’s foliage. It is difficult to say without seeing your tree. You are welcome to me send pictures at aoakley@plantkingdom.net or bring them by The Plant Kingdom on Westport Road. As for the insects that are around your tree, this is completely normal. They are frequent visitors to magnolias but are not the primary pollinators. Beetles are responsible for the majority of the pollination. They actually burrow into the flowers before they open to feed on the nectar and then as they feed they are covered in pollen, which is then transferred from flower to flower as they continue to feed. So, not to worry, it sounds like your tree is perfectly healthy but I would be happy to look at pictures.
