I have aspen trees that are secreting a sticky sap like substance...makes the patio unusable...what is it and how do I remedy the situation?
Hello,
I hate to be the bad bearer of news but aspen trees just have that sticky substance. I would say that you can do one of two things. You can clean the patio with a pressure washer and hopefully that gets out the stains and seal the patio if it is wood. Otherwise I would look at removing the aspen tree and planting back another shade tree in its place. Any questions send them to asktreedoctor@gmail.com
Bryan Gilles
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