Do I need to seal tree after cutting large limb?


Old 09-20-20, 04:25 AM
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Do I need to seal tree after cutting large limb?

I trimmed some limbs off of the lower section of some pines getting ready for a fence. One of the pines had a large offshoot that I cut off. I know that used to we would spray some of that black sealant stuff on places where you limbed trees but I don't know if you still do that.

So should I put anything on the tree to seal where I cut that off?
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Old 09-20-20, 04:46 AM
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I know back in the day sealing the cut was the norm but I've not heard of anyone doing so in yrs. I assume that means they've discovered it's not needed ..... but I'm not a tree expert and don't know for sure.
Old 09-20-20, 04:48 AM
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I never seal tree cuts. Much of what I've read says sealing can make disease and rot worse.
Old 09-20-20, 07:02 AM
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I hadn't thought about that for years.

They sell it, I googled and most say not to do anything!
Old 09-20-20, 08:35 AM
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What's important is that the cut be vertical not horizontal. If vertical I don't think sealing is necessary, but if flat or horizontal then water can sit on top and aid in rot.
Old 09-20-20, 09:02 AM
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Ideally, you prune in winter when the tree is dormant. Generally you'd seal cuts on fruit trees during the growing season, that way they didn't bleed sap.
The bigger problem is to avoid ripping a strip of bark when you prune a large limb with a saw. You always make a "rip stop" un the underside of a large limb, that keeps the bark from ripping if the limb starts to peel away.
Old 09-22-20, 07:53 PM
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If there are pine beetles in your is better to wait until winter so the tree does not send out distress signals that beetles can hear. That is what arborists tell me.
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