sustainability through science & innovation
Take advantage of a free testing service to screen for resistance in mites, available to all growers and advisors thanks to GRDC
cesar is now testing redlegged earth mites (RLEM) (Halotydeus destructor) for insecticide resistance across southern Australia. Throughout 2015, this service will be free for Australian grain growers, thanks to funding from GRDC.
Resistance to synthetic pyrethroids (SPs) is already confirmed in a large number of populations of RLEM across the WA grainbelt, while some populations in WA also have resistance to organophosphates (OPs). As yet there are no confirmed cases of resistance in south-east Australia. However, growers must be vigilant because recent genetic studies demonstrate a genetic flow between the east and west regions of Australia.
One of the major challenges the Australian grains industry is facing is the reliance on only three registered chemical groups to control RLEM – neonicotinoids as a seed dressing, and SPs and OPs as foliar insecticides. Hence, growers are limited in their options to rotate different chemical classes, though it is imperative they do so.
The testing service is available across SA, NSW and Victoria. Any grower or advisor experiencing a chemical control failure involving RLEM, or suspecting issues with insecticide resistance, are encouraged to contact us to access this free service.
For comprehensive information about redlegged earth mites, including their occurrence, lifecycle, behaviour, damage symptoms and management strategies, go to redlegged earth mite within the new PestNote series.
For more information please contact:
Dr Paul Umina
Director, cesar
Ph: 03 9349 4723
Email: pumina@cesaraustralia.com
What is PestFacts?
PestFacts south-eastern keeps growers and advisers informed about invertebrate pests and beneficials in broadacre crops and pastures during the winter-cropping season in Victoria and southern New South Wales.
PestFacts south-eastern is run through IPMforGrains: Best Practice Insect Pest Management, a project delivered by the National Pest Information Network (cesar, DPIRD, QDAF, NSW DPI, and SARDI). This project aims to provide grain growers and advisors with information on invertebrate grain pest occurrence and equip industry with the knowledge needed to implement integrated pest management practices. This initiative is a GRDC investment and includes in-kind contributions from all project partner organisations.
We need your reports
PestFacts is produced on an ʻas-needsʼ basis and relies upon pest observations and field reports from our subscribers. If you have recently observed invertebrate pests (or beneficial species) in broadacre crops, please contact us to report your observations.
Agricultural invertebrate identification
If you are a grower or agronomist in Victoria or NSW working with broadacre crops or pastures, we can assist you with identifying invertebrates found on farms at no cost. Please contact us for identification help.
PestFacts map
PestFacts map is an interactive tool that allows users to search and view historical pest reports across Victoria and NSW. The map is updated with each issue of PestFacts to include new reports.
How to acknowledge PestFacts?
With appropriate acknowledgement, cesar grants permission to reproduce information taken directly from PestFacts. To cite PestFacts: “PestFacts south-eastern (<<enter date published>>). cesar pty ltd.”
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0484 310 697
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