Crop(s) | Pasture/Winter crops |
Insect(s) | Redlegged earth mite (RLEM) (Halotydeus destructor) |
Crop stage | Group* | Chemical subgroup | Example chemical |
Seed treatment (or in-furrow) | 4A
1B 2B 30 |
neonicotinoids or
organophosphates or phenylpyrazoles or isoxazolines |
Imidacloprid
Chlorpyrifos fipronil isocycloseram (Canola only) |
Bare Earth (Pre-emergent) | 1B
3A |
organophosphates or synthetic pyrethroids | omethoate
bifenthrin |
Early post-emergence | 1B
3A 12A |
organophosphates or synthetic pyrethroids or diafenthiuron s | Chlorpyrifos
alpha-cypermethrin diafenthiuron (Canola only) |
Spring | 1B
3A 12A |
organophosphates or synthetic pyrethroids or diafenthiuron |
omethoate
gamma-cyhalothrin diafenthiuron (Canola only) |
* Refer: CropLife Expert Committee on Insecticide Resistance Mode of Action Classification for Insecticides.
Further detailed information about registered products and chemical windowing strategies for RLEM is available at: https://ipmguidelinesforgrains.com.au/important/uploads/Science-behind-the-RLEM-IRMS-in-Australian-grains-and-pastures_October-2024.pdf
3 TIMERITEยฎ predicts the best spray window and ideal spray date in spring to control RLEM https://www.wool.com/timerite/
URL: https://croplife.org.au/resources/programs/resistance-management/pasture-winter-crops-redlegged-earth-mite/
Content last updated: June 26, 2025
CropLife Australiaโs Resistance Management Strategies provide a guide for crop protection product rotation through product groups. The strategies are a useful tool that supports farmersโ adoption of resistance management. All crop protection products must be handled and applied strictly as specified on the product label or APVMA permits.
These Resistance Management Strategies do not replace product labels. They are a guide only and do not endorse particular products, groups of products or cultural methods in terms of their performance. It is important to check with the Australian regulatorโs (APVMA) product database for contemporary information on products and active constituents. The database can be sourced through www.apvma.gov.au
The information given in this strategy is provided in good faith and without any liability for loss or damage suffered as a result of its application and use. Advice given in this strategy is valid as at 26 June 2025. All previous versions of this strategy are now invalid.