Updated insecticide guide 2024 and changes to insecticide registrations
DPIRD’s 2024 autumn winter insecticide guide is now available and can be downloaded for free at the department’s Insecticide spray guides for crops in Western Australia page.
This spray guide is updated every year to include the chemicals and rates registered by the Australian Pesticides and Veterinarian Medicines Authority (APVMA) that can be applied to canola, cereal and lupin and other grain legume crops for controlling the common seedling insect pests. This includes foliar sprays and seed dressings.
A notable change in this spray guide includes the addition of Isocycloseram, registered as a seed dressing for canola seed for protection from redlegged earth mite. Also, Thiamethoxam seed dressings are now approved for management of green peach aphid in lupins, chickpeas, field peas and canola, as well as cereal crops. Additional alpha-cypermethrin and bifenthrin active ingredient concentrations are listed, along with several recently registered trade names. The active ingredient maldison has been renamed to malathion and label variations have been made.
Some chlorpyrifos products are no longer registered, including chlorpyrifos 300g/L and lambda-cyhalothrin 15.4g/L insecticides for use on canola, lupin and cereal pests. Chlorpyrifos use is under review by the APVMA and during this time continues to be registered for use. The permit for use of Pymetrozine for aphid pests in lupins has now expired.
The spray guides are only a guide, and growers still need to read chemical labels before use.
Not all insecticide trade names may be listed so growers should also check with their retailers for any other registered insecticide options.
To download these spray guides and other useful insecticide information visit the department’s Insecticide spray guides for crops in Western Australia page.
An Australian grains chemical toxicity table has been developed to help growers and advisors make informed choices about the insecticides and miticides they use in their crops. It summarises the toxicity of foliar chemical sprays on beneficial insects. This table was a collaboration between Cesar Australia and University of Melbourne, with investment from the Grains Research and Development Corporation (GRDC) as part of the Australian Grains Pest Innovation Program (AGPIP).
For more insecticide information contact Research Scientist Svetlana Micic, Albany on +61 8 9892 8591 or Research Scientist Bec Severtson, Northam on +61 8 9690 2131.
Article author: Bec Severtson (DPIRD Northam).