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Electric ant (little fire ant)
No full textThe electric ant (Wasmannia auropunctata), also known as little fire ant, is a tiny, gold-brown coloured ant, and one of the world\u27s most invasive pests. Electric ants prey on and compete with other insects and can displace large numbers of native animals, ants, and other insects.
They affect human health and lifestyle, can inflict painful stings on humans and wild and domestic animals, can blind pets, damage the environment, and have the potential to severely affect agricultural industries.
The electric ant is native to Central and South America and was first detected in Australia in 2006 in Queensland, where there are localised incursions. It is an introduced invasive ant species that is of great concern for Western Australia (WA).
Electric ants are a declared pest that is prohibited in WA under the Biosecurity and Agriculture Management (BAM) Act 2007
Pest bird control: bait / toxin products
No full textThis factsheet provides information on the bait, poison and toxin (bait) products available for use in Western Australia (WA) to control pest birds
The impact of repayment obligations arising as a by-product of input use on partial inefficiency: Evidence from Western Australian farm businesses
No full textFarm businesses often use debt to finance the purchase inputs and meet operational costs. Selected studies have investigated the impact of debt use on farm performance as measured using technical efficiency. However, no prior studies in agriculture have considered treating the debt repayment obligation created as a by-product of production when benchmarking farm performance. This study employs nonparametric directional distance function models to quantify the impact of debt repayment as a by-product of input use purchased on credit on farm-level partial inefficiency using a panel data of 54 mixed enterprise broadacre farms in Western Australia from 2002 to 2011. The study finds that omitting repayment obligations created in the production process in analysis results in underestimating partial inefficiency scores. Farm size, production diversification and rainfall zone are significant drivers of partial inefficiency. The implication of the study\u27s findings is that failure to account for repayment obligations created in the production process may result in erroneous policy suggestions that undermine the efforts of farm businesses to minimise or avoid financial stress
Improving lambing rates and changing turnoff times to reduce greenhouse gas emissions
No full textRunning a flock of sheep and raising lambs generates both direct (enteric fermentation) and indirect (lime, fertiliser, fuel, production of feed) greenhouse gas (GHG) emissions. There are ways to reduce emissions through sheep reproduction
Reportable animal diseases – Western Australia
No full textIn Western Australia, the Biosecurity and Agriculture Management Act 2007 requires that certain diseases must be reported if they are known or suspected to be present.
This table shows which diseases must be reported
Deep learning-based depth estimation methods from monocular image and videos: a comprehensive survey
No full textEstimating depth from single RGB images and videos is of widespread interest due to its applications in many areas, including autonomous driving, 3D reconstruction, digital entertainment, and robotics. More than 500 deep learning-based papers have been published in the past 10 years, which indicates the growing interest in the task. This paper presents a comprehensive survey of the existing deep learning-based methods, the challenges they address, and how they have evolved in their architecture and supervision methods. It provides a taxonomy for classifying the current work based on their input and output modalities, network architectures, and learning methods. It also discusses the major milestones in the history of monocular depth estimation, and different pipelines, datasets, and evaluation metrics used in existing methods
Aphid feeding damage and its management in cereal crops
No full textAdult and nymph aphids suck sap from cereal crops, with large populations, especially in winter and spring, limiting grain yield and size. This page relates to feeding damage from oat aphid (Rhopalosiphon padi) and corn aphid (Rhopalosiphon maidis) in the absence of virus, and Russian wheat aphid (Diuraphis noxia)
Bean yellow mosaic virus and its management in lupins
No full textBean yellow mosaic virus (BYMV) is an aphid-transmitted virus that commonly causes necrotic symptoms that kills lupin plants when infected early before pod set. When plants are infected after pod set, black pods develop (known as black pod syndrome).
BYMV is found predominantly in high rainfall areas of the Western Australian (WA) grainbelt. This page outlines the symptoms, diagnosis, factors favouring disease risk and spread, yield and quality impacts, and management for BYMV in lupin crops in W
Button grass and its management
No full textButton grass (Dactyloctenium radulans) is a native species found throughout Australia. It is a common summer weed species that depletes soil moisture and nutrients, reducing the yield potential of the subsequent crop. It also acts as a green bridge for crop pests and disease.
The rapid emergence and growth of button grass after rainfall makes it important for the Australian plague locust.
It can be a valuable pasture species in arid areas, although overgrazing of button grass can result in toxicity for sheep and cattle
Diamondback moth and its management in canola and crop weeds
No full textDiamondback moth larvae are a serious pest of canola, brassicas, and forage crops, and are difficult to control. The pest breeds up on summer weeds and volunteer canola plants. If there are abundant early rains and mild winters, diamondback moth larvae pose a risk to canola crops