Bait snails now before egg lay. Reports suggest snail populations in parts of South Australia have been higher than usual in spring 2022 and during the 2022–23 harvest. The late winter and spring of 2022 was wetter than average in many coastal
Watch for slugs post-rain. We've seen slug activity in the south-east despite this year's drier weather and slower start to rainfall across South Australia, though without reported crop damage. Slugs tend to thrive in paddocks with high moisture
On the radar. We recently received reports of cowpea aphid (aphis craccivora) activity in the northeast, particularly in paddocks near irrigated crops. Cowpea aphids are glossy black insects characterised by distinctive black and white legs. They
Reviewing the daily egg production method (DEPM) to improve confidence in estimating spawning biomass for Snapper.
Slugs. Slugs are emerging across SA, particularly across the South East and lower Eyre Peninsula after the late season break. Some black keeled slugs (Milax gagates) were observed under refuges that were put out as part of the GRDC Slug Modelling
Crucisoema plebejana) has been reported at Booleroo Centre feeding inside wheat grain. The caterpillars also produced some webbing, especially when disturbed. Cotton tipworm caterpillars are 5 millimetres to 12 millimetres long, and cream in colour
Liming and snails. We regularly receive reports of increased numbers of pest snails in paddocks after liming. This often raises questions about machinery moving snails or snail eggs with the lime. While this cannot be ruled out in some instances, it
The project explored how smartphone apps can give recreational fishers a modern, real-time way to report their catch and fishing activity.By participating in app-based reporting, fishers contribute valuable data that
Predicting next year's insect pests. Finding invertebrates such as snails, slugs, European earwigs, weevils and vegetable beetles during harvest can inform monitoring for next season. Resident pests can live in paddocks and build up high populations
Spring is here – so are cabbage aphids. There have been recent reports of cabbage aphids (Brevicoryne brassicae) in dense colonies on canola. Aphids often attack stressed plants, and after this year’s dryer winter weather conditions there are