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The first signs of slugs, false wireworms and millipedes have appeared in areas receiving mid-April rains
Slugs are now active and their pressure is expected to rise. According to SARDI research entomologist, Dr Michael Nash, grey field slugs (Deroceras reticulatum) have been active in high problem areas and were caught on film in southwest Victoria. Black keeled slugs (Milax gagates) have not yet been active in western Victoria, however, the recent rainfall may lead to greater pressure, especially in NSW.
Canola seedlings are vulnerable in high-risk areas and should be baited. Monitor activity with baiting stations in medium-risk areas. For more details on management strategies, go black-keeled slug or grey field slug within the PestNote series.
Grey field slug in a paddock containing bean stubble and recently sown to canola in southwest Victoria (Source: C Shady)
Further pest observations from southwest Victoria include eastern false wireworm (Pterohelaeus spp.) in canola crops (2 leaf) south of Streatham, and black Portuguese millipede (Ommatoiulus moreletii) activity in Mininera and Streatham.
Sources of field reports of slugs, false wireworms and millipedes
Dr Michael Nash – Researcher, SARDI (Adelaide)
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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