Name of a movie where a guy clones his mother I believe and she goes crazy and tries killing him?

There's also a lawnmower and it was on UPN in the late 1990s...I have
a good memory but I was only 4 when I saw the movie on UPN and I
wanted to see it again. I'm definitely not making it up
either...earlier I remembered a same movie that I saw on UPN in the
past and it turned out to be Little Monsters. Can someone older help
me out?