tathraman writes:
My garden is being ravaged by wallabies and/or kangaroos. Can anyone
suggest a deterrent (excluding slaughter) that would be effective?

There is the theory that herbivores abhore the odour of decaying
flesh. So to deter rabbits, they recommend that you spread blood
and bone fertiliser around. I suggest that you try this for your
wallabies.

Spread B&B around on part of your garden, but leave some garden as
a sacrifical plot to see whether the visitors confine themselves
to the unfertilised plants. There are probably many garden plants
where you could sprinkle the fertiliser onto the leaves without ill
effect to you or the plant; daisies, for example, but not lettuce.

Are the invaders so determined that a standard netting fence fails
to keep them out? Infrared sensors could ring an alarm or do some
thing startling. There is probably plenty of scope for imaginative
application of electrified fencing, unless you have small children.
--
John Savage (my news address is not valid for email)