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Name: katrinna
Status: student
Grade: N/A
Location: N/A
Country: N/A
Date: N/A
Question:
What causes a oak tree to leak sap?

Replies:
Possibly an injury to the tree:

http://www.newton.dep.anl.gov/askasci/bot00/bot00277.htm

http://ceventura.ucdavis.edu/newsletterfiles/Landscape_Notes11016.pdf

Anthony Brach Ph.D.


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