How do I control cluster caterpillar infestation in my garden?

I'm in perth and have rarely had much garden problem . I have a huge caterpillar infestation and they are eating / destroying every plant type in the garden. I researched online and it seems to be Cluster Caterpillar infestation.They are destroying everything - any advise on eradication? most of my plants are half eaten and one patch is completely gone. I am picking up as many as possible and killing them as I find but its not helping. Have added a picture, its of a brown one but there is also green ones similarly with dots on top.

yates

13 April 2013 02:16 AM

This is a photo of the Lawn Army worm which attacks lawns as well as other plants. Yates Baythroid, Lawn Grub and Insecticide is registered for the control of this lawn grub.

Topics: General Advice Issues: Pests