What damage is fox do ? If you no see damamge or destruct anywhere, why you wish to kill fox which not there ?
If you see damage or if for egsample you have dead chicken, then cull fox !
When you hunt rabbit , after clean ,keep all intestin & belly rubbish, put in bucket & keep with lid on. Put bucket in area of fox ,take lid off ! wind blow smell across field, you sit wait 100metre away & squeek, with split leaf .When you see fox....booooooom Problem solv