Fall armyworm (Spodoptera frugiperda) is now considered established in Australia. It has been detected by Biosecurity Queensland at several sites on mainland Australia. According to the Queensland Department of Agriculture and Fisheries, suspect moths have been confirmed at several locations by DAF entomologists as fall armyworm, including at Bowen, the Burdekin, and Bundaberg. It has not been confirmed in sugarcane.
Fall armyworm is an invasive pest and its larval (caterpillar) stage feeds on more than 350 plant species, and impacts cultivated grasses such as maize, rice, sorghum, sugarcane and wheat, as well as fruit and vegetable and cotton crops. Fall armyworm is native to tropical and subtropical regions of the Americas, and since 2016 has spread to Africa, the Indian subcontinent, China and South East Asia.
Adult moths are highly mobile and can fly long distances (up to 200km). This pest is also prolific, reproducing at a rate of several generations per year. Australia’s climate and the production of suitable hosts are favourable for fall armyworm to establish and spread. Australia’s environment and native flora may also be impacted.
DAF Queensland is continuing to undertake surveillance across key farming areas. The National Management Group has determined that it is not technically feasible to eradicate fall armyworm from Australia.
The information sheet below has more detailed information on the sugarcane industry’s response to fall armyworm.
Sugar Research Australia and industry partners have worked with the Australian Pesticides and Veterinary Medicines Authority (APVMA) on an emergency use permit for Permethrin to control fall armyworm. This permit allows a person to use the product in the manner specified in this permit in Queensland and New South Wales. In sugarcane Permethrin is the only active currently registered for use against FAW in Australia. Read more here.
Correct identification of the insect is very important. Overuse (or use when not required) of this type of product could potentially lead to insecticide resistance and impact natural enemies or beneficial insects.