S'chach Mixed with a Climbing Plant

I have s'chach for a sukkah that remains in place all year, and before Sukkot I raise it a tefach. A climbing plant has grown over part of the s'chach, and it is mixed in with the s'chach, but in practice there is more kosher s'chach than climbing plant. Is the s'chach kosher for the sukkah?
Attached is a picture of the s'chach.
Thank you very much

Shalom u'vrachah,

Since the majority of the s'chach is kosher, the sukkah is kosher.  

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