Slugs and Snails

Four exotic snail and slug species are major pests to Australian grain crops. Most of the snails are from the Mediterranean. They attack seedlings, cause plant damage and impact yields.

Snails climb crop plants in spring. They contaminate the grain harvest. This causes high costs for growers. They face expenses like harvester changes, machinery damage, and grain cleaning after harvest. It can also lower grain value and lead to rejections. This also creates market risks for the industry.

Slugs breed and thrive in wet conditions. They are expanding into areas they have not traditionally affected. This includes places with an average rainfall of less than 500ml a year. Planning and implementing control methods for slugs is difficult. This is because they do not have a set lifecycle.

The effective management of snails and slugs is vital for growers' profits. Improving control of these pests has been a priority since the 1980s. Growers can use a long-lasting slug and snail bait to help protect young crops. It is rain resistant, attractive, tasty, and spreads evenly.

Latest news

Slugs

14 Jun 2023, Spring slug numbers key to next year’s crop risk
14 Jun 2023, Spring slug numbers key to next year’s crop risk

Leading Australian slug expert Dr Michael Nash is urging growers in areas affected by slugs to closely monitor paddocks this spring to assess the potential risk for their 2023-24 crops.

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8 Aug 2022, Latest GRDC slug control tactics now available for growers
8 Aug 2022, Latest GRDC slug control tactics now available for growers

Increased slug damage has been reported by grain growers in Victoria, South Australia and southern New South Wales after ongoing wet conditions. Some areas have experienced this pest for the first time.

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19 Dec 2022, Wet conditions make vigilance the key for slugs
19 Dec 2022, Wet conditions make vigilance the key for slugs

Economics should be one of the factors that drives decisions about baiting and other control methods for slugs and snails.

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Snails

28 Jan 2025, Multidisciplinary team tackles lime-loving snails
28 Jan 2025, Multidisciplinary team tackles lime-loving snails

Growing snail incursions have prompted investment in capacity building to develop new ways to manage them in the western region.

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11 Sept 2023, Strategy a part of managing snails after liming
11 Sept 2023, Strategy a part of managing snails after liming

Some growers have noticed snail numbers increase after liming. Lime is a source of calcium which increases shell strength and fertility.

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9 Feb 2023, Persistent researchers work towards biological control of conical snails
9 Feb 2023, Persistent researchers work towards biological control of conical snails

A project managed by CSIRO has renewed attempts at establishing parasitic flies in parts of South Australia, aiming to suppress conical (or pointed) snail populations.

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