growth on base of tree - Ask Extension
can you tell me what this is growing on my apple tree
Knowledgebase
growth on base of tree #853747
Asked October 22, 2023, 6:55 PM EDT
can you tell me what this is growing on my apple tree
Hennepin County Minnesota
Expert Response
Thank you for writing.
You do not include a picture of this growth on the tree and I do not have a way to estimate the size or location of this relative to the grafting. It is either a gall or a burr knot.
https://www.ndsu.edu/agriculture/extension/extension-topics/gardening-and-horticulture/trees-and-shrubs/apple-trees/diagnosing-3#:~:text=The%20bacteria%20stimulate%20the%20tree,turn%20dark%20brown%20and%20woody.
https://www.gardeningknowhow.com/edible/fruits/apples/apple-tree-burr-knots.htm
https://www.rhs.org.uk/problems/burr-knots-on-apple-trees
You do not include a picture of this growth on the tree and I do not have a way to estimate the size or location of this relative to the grafting. It is either a gall or a burr knot.
https://www.ndsu.edu/agriculture/extension/extension-topics/gardening-and-horticulture/trees-and-shrubs/apple-trees/diagnosing-3#:~:text=The%20bacteria%20stimulate%20the%20tree,turn%20dark%20brown%20and%20woody.
https://www.gardeningknowhow.com/edible/fruits/apples/apple-tree-burr-knots.htm
https://www.rhs.org.uk/problems/burr-knots-on-apple-trees
