Here in the Northern Territory Army Worm is a common problem.
More common in the wet season as they love the warmer climate.
Army worms are attracted from miles away to fresh lawn and fresh lawn shoots,either recently acquired or recently fertilised.(Just like throwing a fresh bale of hay in a drought ridden paddock)
The moths are widespread in suburban areas as they are attracted to lights.
Watch out for damaged / brown patches in your lawn
Use one of the following preventatives:'Richgro Ant Killa', ‘Richgro 5kg Lawn Beetle And Grub Killa’ or ‘Scotts Lawn Builder + Grub and Insect Control’ when fertilising
(Fertliser + grub control is NOT for Zoysia Matrella)
*Bifenthrin is the ingredient to deter pests
*Please Note: While on the farm all turf is regularly treated for grub prevention.