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…
Redlegged earth mites (Source: cesar).
cesar is again testing redlegged earth mites (RLEM, Halotydeus destructor) for insecticide resistance across southern Australia. Throughout 2016, 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-eastern Australia. However, growers must be vigilant because genetic studies demonstrate a genetic flow between the east and west regions of Australia. Recent research at The University of Melbourne has revealed resistance to SPs has evolved on more than one occasion in WA, demonstrating the potential for resistance in other States.
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 that they do so.
The testing service is available across SA, NSW, Victoria and Tasmania. 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 more information please contact:
Dr James Maino
cesar
Ph: 03 9349 4723
Email: jmaino@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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