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Agronomist, Mick Duncan (Northern Agriculture), reports that blue oat mites (Penthaleus spp.) have been prevalent in several emerging crops over the winter period across much of the Northern Tablelands district of New South Wales. Mick says spraying with omethoate has been common and appears to have provided good control.
Blue oat mites are abundant in many cropping and pastoral areas of Victoria, Tasmania and New South Wales. They are often mistaken for redlegged earth mites due to their similar appearance and sympatric life cycle. However, blue oat mites and the redlegged earth mite differ markedly in their biology and tolerance to pesticides, and require separate management strategies. Blue oat mites can be distinguished from other mites by their blue-black coloured body and characteristic red mark on their back.
Click here for images of blue oat mites and refer to PestFacts Issue No. 2 for more information.
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.
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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.
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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.
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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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