They also do it through netting ( over veg ) !! Not everyone wants to fill their garden with prickly sticks or sharp canes - more likely to poke yourself in the eye than deter your furry neighbours.
Over the last 7 years or so that I've seen cat shit problems on here, @Hostafan1 's bank balance may be liable to investigation by the IRS - unearned income ? Sorry Hosta
At some point in the past we bought an ultrasonic cat scarer. It works on a young ginger tom,who takes off like he has been shot, but not on an old black cat that we think is a bit deaf. Most of them hate water unless it is a bengal, so a supersoaker water gun could be used, they get wet but harmless. I also use holly cuttings on seed beds.
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Not everyone wants to fill their garden with prickly sticks or sharp canes - more likely to poke yourself in the eye than deter your furry neighbours.
https://www.countryliving.com/uk/wildlife/pets/a32402647/how-stop-cats-pooping-in-garden/
Sorry Hosta