Guidelines:
Crop stage | Group* | Chemical sub-group | Example chemical |
Seed treatment (or in-furrow) | 4A 1B 2B |
neonicotinoids or organophosphates or phenylpyrazoles |
imidacloprid chlorpyrifos fipronil |
Bare Earth (Pre-emergent) | 1B 3A |
organophosphates or synthetic pyrethroids |
omethoate bifenthrin |
Early Season (Autumn when limited green growth) | 1B 3A12A |
organophosphates or synthetic pyrethroids or mitochondrial ATP synthase inhibitors |
chlorpyrifos alpha-cypermethrindiafenthiuron (Canola only) |
Spring | 1B 3A 12A |
organophosphates or synthetic pyrethroids diafenthiuron |
omethoate gamma-cyhalothrin diafenthiuron |
*Refer: CropLife Australia Expert Committee on Insecticide Resistance Mode of Action Classification for Insecticides
If both autumn and spring applications are needed, alternate between chemical groups.
Timing of Sprays
Placement of Sprays
Cultural Practices
For more detail on resistance management forΒ RLEM in grain crops and pastures, refer to: http://ipmguidelinesforgrains.com.au/ipm-information/resistance-management-strategies/ and GRDC RELM BMP guide.
Notes regarding the application of insecticides:
URL: https://croplife.org.au/resources/programs/resistance-management/pasture-winter-crops-redlegged-earth-mite/
Content last updated: July 14, 2023