This is a 4-5 year old Quercus alba that developed 2 clusters of these pine...
This is a 4-5 year old Quercus alba that developed 2 clusters of these pine cone like growths last year - mainly on the small trunk. They crumbled easily when the home owner tried to remove them.Now here is a picture of 2 more that are growing on the same tree. Can you help with identification. The homeowner lives in Betterton MD. The tree was professionally planted, is watered properly, and is in full sun. The soil was amended when the tree was planted and is known for being more on the clay side. The tree is mulched but only 1 inch not too heavy. The owner does not want to loose the tree but is concerned with this growth that is re-occurring
This is an oak lobed gall, a non-harmful gall caused by a tiny wasp. See this website for the fascinating photos and info: http://bygl.osu.edu/content/more-oak-galls-0