On Mon, 12 Nov 2012 08:54:40 +1100, Jeßus wrote:

My poor Silver Birches have taken a real hammering from the little
*******s. It's so disheartening to see a birch tree grow so well, then
overnight the main stem is snapped clean off about 2 metres from the
top... I melted some lard yesterday and mixed some kero in it. I'm
going to smear it all over the birch tree's trunks in the hope it
deters them.

Ratsak one shot embedded in peanut butter works a treat. Just make sure no pets are
around.