In the meantime, if you ever need a laxitive then a tea made of the leaves is what you want.  A tea made of the roots is a bit more emphatic - the word 'purge' doesn't quite do it justice, but still worth remembering - with caution 😄   

Bindweed's bigger brother Convolvulus is a promising tumour inhibitor.   It shuts down blood supply to the tumour, much like Coriolus does.  

By all means get rid - I do from my veg patch - but I thought it might make it feel a bit less of an enemy to know it does have uses and is not just a bully.  

I starve mine by constantly taking off the above soil bits, but I hear the one touch glyphosate is good.