PEST
 
   NAME
     Kurrajong leaf-tier, Bag Moth
     Lygropia clytusalis
 
   ORDER
     Lepidoptera
 
   FAMILY
     Pyralidae

Description of the Pest
The pale green brown larvae of this moth are gregarious and very active, living in a bag of webbed leaves (the silk-tied leaves also account for the common name, “bag moth”). The adult moth has pale, orange and black-banded wings, with a wingspan of 25mm.

Appearance and Distribution of the Pest
Larvae are active from mid summer through autumn, regardless of the climatic conditions. They are found throughout eastern and inland Australia.

Life Cycle
This insect has a Holometabolous life cycle, ie. When metamorphosis is observed during the pupal stage.
The larvae pupate inside the bag. 

Period of Activity
Larvae shelter in the bag, where they feed during the day; they leave their shelter to continue feeding at night.

		 Larvae

Damage Caused
Larvae eat the leaves and produce bags which, in large numbers, have an unsightly appearance.

Susceptible Plants
Kurrajong (Brachychiton populneus) and Illawarra Flame trees (Brachychiton acerifolia).

Cultural Control
Remove the bagged leaves, and destroy off-site.

Biological Control
There is no natural control.

Chemical Control
Systemic insecticides may be effective.
Note
Always read the label for registration details and direction of use prior to application of any chemicals.