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Identifying land snails
No full textSnails can be voracious eaters, destroying leafy vegetables, cereal crops, pasture grasses and some native plants. From time to time, exotic snails are intercepted in cargo, machinery, vehicles and packaging and then destroyed.
Snail species may be native or already established in Westen Australia; however, your reports will help detect exotic snails early and prevent them from invading gardens, agriculture and the environment
Value of horticulture from Western Australia 2023–24
No full textIn 2023–24, WA produced approximately $1.92 billion worth of fresh fruit, nuts, vegetables, and amenity horticulture at the wholesale level. The real value of Western Australia’s horticulture sector, as of 2023–24, grew by 9.6% compared to 2020 levels, driving regional economic development
Consultation summary for proposed Declared Pest Rates 2025/2026
No full textUnder the Biosecurity and Agriculture Management Act 2007 (BAM Act) the State raises a Declared Pest Rate (DPR) from land or leaseholders (hereafter landholders) in prescribed areas (DPR Areas) and matches the funds raised from the rate dollar-for-dollar.
The combined funds are made available to Recognised Biosecurity Groups (RBGs) who provide support to landholders to fulfil their obligations under the BAM Act to manage widespread and established declared pests on their land. A community-led and coordinated approach is considered the most effective way to support landholders to manage these types of pests.
Each year, the Minister for Agriculture and Food consults with affected landholders on the proposed DPR, as required in the Biosecurity and Agriculture Management (Declared Pest Account) Regulations 2020 (the DPA Regulations).
The Department of Primary Industries and Regional Development (DPIRD) undertakes the consultation on the Minister’s behalf, and uses it to gauge landholder perception on the proposed DPR
Effect of rainfall reduction and competition on the phenology of the Mediterranean forage perennial legume Bituminaria bituminosa var. albomarginata cv. Lanza
No full textTedera (Bituminaria bituminosa (L.) C.H. Stirt.) is a Mediterranean drought-tolerant species that shows potential as a forage perennial legume for Mediterranean livestock systems. This three-year study investigated the phenology of the newly developed variety of tedera (Lanza) in response to an annual 24% rainfall reduction and competition compared to alfalfa (Medicago sativa L.) in a typical Mediterranean environment of the Iberian Peninsula. Tedera showed early phenology for the reproductive stages from inflorescence emergence to ripening compared to alfalfa, with a long flowering period from early April to mid-May, overlapping with mature fruits. In general, tedera responded to a 24% reduction in rainfall with earlier inflorescence emergence and flowering, demonstrating plasticity to drier conditions. Competition affected the phenology through delayed start of inflorescence emergence and flowering, and especially by reducing the probability of plants reaching reproductive stages. Tedera exhibited overall later leaf shedding than alfalfa and even retained green leaves throughout the summer of the establishment year, whereas alfalfa shed its leaves in July. Low cold tolerance and competition from weeds affect the phenology of tedera and may limit its persistence. Further research and breeding efforts are needed to define suitable management strategies and ensure the provision of green forage during the summer season by this species, which may play a crucial strategic role in facing future, more arid scenarios in Mediterranean livestock systems
Status of the Western Australian pastoral rangelands 2024: Total vegetative cover, cover risk and pasture condition
No full textThe Department of Primary Industries and Regional Development (DPIRD) monitors and reports on the vegetation condition of pastoral rangelands in Western Australia. Two levels of reporting are provided: every 5 years a full report (this report) details the state, trend and risk of decrease of vegetation condition in the pastoral rangelands using information derived from remotely sensed and on-ground data; in the intervening years, short reports are provided based on remotely sensed data.
This full report is based on remotely sensed vegetation cover data, rainfall data, livestock data and station-level rangeland condition assessment (RCA) data available in November 2024. Data is presented for 23 land conservation districts (LCD) across the pastoral rangelands. Individual LCDs are grouped into Kimberley, Pilbara, Upper Southern Rangelands and Lower Southern Rangelands regions.
Total cover in June–August 2024 was strongly influenced by rainfall in the preceding 1 to 2 years. The risk of the total cover of a key pasture or vegetation functional group falling to or remaining at below-average or very much below-average levels was high or very high in 11 LCDs, which is less than the estimate of 17 LCDs in the 2023 annual report.
Station-level assessment of pasture condition and erosion – using rangeland condition assessment (RCA) – was resumed in 2016 after ceasing in 2009. The RCA data collected since 2016 suggest that pasture condition remains generally worse in the Southern Rangelands compared to the Northern Rangelands. RCA data show that on a regional basis, average changes in the pasture condition were non-significant in the Kimberley, Pilbara and Lower Southern Rangelands, while pasture condition improved in the Upper Southern Rangelands
Recreational boat fishing participation varies across bioregional fisheries in Western Australia, with persistent patterns within fisheries and fisher typologies over time
No full textRecreational fishing is popular worldwide and understanding variability in participation can inform policies that seek to improve sustain[1]ability of recreational fisheries and amenity for recreational fishers. However, not all recreational fishers are alike in their demographics or behaviours. This study explores temporal and spatial variability in licensed boat-based recreational fishing participation in Western Australia using data from a consistent survey design delivered 12 times from 2011 to 2024. Five fisher participation typologies were identified across four marine bioregions (North Coast, Gascoyne Coast, West Coast, and South Coast) and four fishery types (demersal, nearshore, pelagic, and invertebrate) with varied fisher characteristics (residence, age, gender, and avidity) associated with the likeli[1]hood of membership to each typology. West Coast casual fishers (32% of licensed fishers) were typically older, metropolitan residents that fished rarely or occasionally and were not associated with any fishery type, while West Coast specialist fishers (26%) were typi[1]cally younger, metropolitan residents and avid fishers that were associated with nearshore, invertebrate, and demersal fisheries. The remaining groups were typically younger, regional residents that fished in South Coast nearshore (16%), North Coast demersal (14%), and Gascoyne demersal (11%) fisheries. This study contributes to global issues regarding the impact of fisher heterogeneity on recre[1]ational fisheries, particularly in the context of increasing and ageing populations, which impacts fisher representation for monitoring and management, and perceived equity in resource allocation. Improved understanding of fisher typologies can be used to address management objectives and to develop appropriate education and communication strategies
How to find a skeleton weed
No full textPollen and pappus trapping and eDNA are two techniques that could compliment on-ground surveillance. Labour availability and occupational health and safety are impacting on-ground surveillance of skeleton weed in Western Australia. To compensate passive surveillance techniques are being developed
Effect of Clay Amendment and Strategic Deep Tillage on Soil Water Dynamics and Plant Growth Under Control Environment
No full textStrategic deep tillage (SDT) practices, such as soil mixing following the application of soil amendments, are promising approaches to alleviate topsoil water repellence and other subsoil constraints and improve crop productivity. However, there is a lack of knowledge on the effect of SDT on soil water dynamics, especially under water-limited environments. This study evaluates the effects of clay incorporation, soil inversion and deep soil mixing on soil water infiltration, surface evaporation rates, soil water storage and subsequent impacts on the below and aboveground growth of wheat (Triticum aestivum L. var Scepter) in controlled environments. Results show that soil mixing significantly improved water infiltration compared to an untreated control. Clay incorporation exhibited the highest bare soil surface evaporation rates immediately and two years post-tillage, leading to substantial water losses under warm and dry ambient conditions. Despite improving soil water storage in deeper layers, high evaporation rates in clay-incorporated soils negatively impacted wheat growth, with reduced shoot biomass and root length density. Conversely, soil inversion and mixing-only treatments demonstrated balanced improvements in water infiltration, soil water use, and wheat shoot biomass. These findings underscore the trade-offs associated with SDT practices, particularly in managing soil water loss and crop productivity in water-limited environments. This study also highlights the need for the careful selection of SDT for soil amelioration strategies tailored to soil types and climatic conditions to enhance agricultural productivity and sustainability
Self-mustering yards for pastoral livestock management
No full textSelf-mustering yards (SMYs) are an important component of effective total grazing management in the pastoral regions. These yards are used to self-muster cattle, sheep and goats, as well as native browsers and feral animals as they enter the yards to access the water point
BEN Signage Installation Map – City of Joondalup (north)
No full textBeach Emergency Number (BEN) Signage Installation Map – City of Joondalup (north)https://library.dpird.wa.gov.au/gis_bens/1008/thumbnail.jp