MONTHLY NOTES ON GRUBS AND OTHER CANE PESTS. 51 
had not been burned for several years, and the borers and their parasite 
were well established. Now I find that there is scarcely any borer-injury, 
and the few grubs I was able to locate were fully parasitised. Evidently 
the flies are able to take care of themselves when the trash is fired. 
The parasites secured on this trip are to be liberated in the Mulgrave 
and Babinda districts, where the beetle-borers are still giving consider- 
able trouble, especially on the low-lying fields. There has been a very 
evident spread of the pest during the past year, because of the lack of 
care in selecting seed. The parasites that we formerly liberated in these 
districts may possibly be established, but it is a difficult matter to 
discover them until the cane is cut. Once they get a start, however, they 
ought to quickly spread to most of the infested fields. 
By Authority: ANTHONY JAMES CUMMING, Government Printer, Brisbane. 
