I'm trying to get rid of most passive mobs but not all. When I put this in, it stops them from spawning in on already loaded chucks. Newly generated chucks spawn all these Mobs still. Any help would be great! Sorry for bad English.
[
{
"mob": ["Sheep", "Chicken", "Horse", "Cow", "Pig", "Bat", "Donkey", "Rabbit"],
"result": "deny"
}

]

From the documentation:

https://wiki.mcjty.eu/mods/index.php?title=InControl#Spawn_Control

Use the 'onjoin' tag