Biosecurity Commons^™

Desmodium Intortum - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia

Environmental Weed Risk Assessments

Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Greenleaf desmodium (Desmodium intortum). Greenleaf desmodium is a perennial, tropical forage legume adapted to a range of soils (sands, sandy loams, loams to medium clay) with at least moderate fertility, pH 5.0 to 7.0, and a minimum of 800mm rainfall.

Ipomoea Batatas - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia

Environmental Weed Risk Assessments

Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Sweet potato (Ipomoea batatas). The sweet potato (Ipomea batatas) is a member of the morning glory or Convolvulaceae family and is not related to the common potato. The plant has long trailing slender stems and is perennial but is treated as an annual in a cropping system. Sweet potato is a semi-tropical plant that grows …

Ficus Carica - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia

Environmental Weed Risk Assessments

Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Figs (Ficus carica). Figs are a species of small deciduous tree in the flowering plant family Moraceae which is native to the Mediterranean and western Asia. It has been cultivated since ancient times and is now widely grown throughout the world, both for its fruit and as an ornamental plant. Figs are a minor horticultural …

Urochloa Decumbens - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia

Environmental Weed Risk Assessments

Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Signal grass (Urochloa decumbens) Signal grass is a creeping, tropical perennial grass which can form a dense sward.

Echinochloa Esculenta - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia

Environmental Weed Risk Assessments

Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Japanese millet (Echinochloa esculenta). Japanese millet is a tall, fast-growing annual summer crop that has been domesticated since 2000BC from Japan. It has been cultivated both for human consumption and as a fodder by tribal communities in Asia including in India, Japan, and China (Sood et al. 2015). Japanese (Shirohie) millet is a dual-purpose millet …

Digitaria Milanjiana - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia

Environmental Weed Risk Assessments

Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Finger grass (Digitaria milanjiana). Finger grass is a subtropical to tropical perennial grass native to a wide range in Africa from South Africa to Ethiopia (Cook et al. 2020). It is now cultivated in Africa, Asia (Malaysia; Thailand; Vietnam), Australia (Northern Territory, Queensland), the Caribbean and in the Pacific (Fiji). Finger grass is a highly …

Medicago Littoralis - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia

Environmental Weed Risk Assessments

Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Strand medic (Medicago littoralis). Strand medic is a temperate annual pasture legume native to the calcareous sandy soils along the coast of the Mediterranean. It is adapted to well drained soils with a slightly acid (pHCa >5.8), neutral and alkaline conditions (AAR 275-500mm). Used as a self-regenerating autumn-to-spring growing annual pasture. A minor pasture species …

Urochloa Mosambicensis - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia

Environmental Weed Risk Assessments

Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Sabi grass (Urochloa mosambicensis). Sabi grass is a creeping, tropical, perennial grass of variable size and growth habit usually with short stolons or tufted and sometimes rooting and branching from the lower nodes. Sabi grass is native to central and southern Africa (i.e. Kenya, Tanzania, Uganda, Malawi, Mozambique, Zambia, Zimbabwe, Botswana, South Africa and Swaziland). …

Allium Cepa - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia

Environmental Weed Risk Assessments

Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Allium cepa. Onions are a root vegetable which are widely cultivated around the world. A. cepa is only known from cultivation, however onions are part of the Allium genus which contains over 300 species.

Vigna Radiata Subsp. Radiata - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia

Environmental Weed Risk Assessments

Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Mung bean (Vigna radiata subsp. radiata) There are two subspecies of Mung bean; V. radiata subsp. radiata (var. setulose) is the exotic Mung bean native to the Indian subcontinent and Vigna radiata subsp. sublobata which is native to northern Australia and the Kimberley Region in Western Australia including IBRA Regions: Central Kimberley, Dampierland, Northern Kimberley, …

Stylosanthes Guianensis Var. Guianensis - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia

Environmental Weed Risk Assessments

Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Common stylo (Stylosanthes guianensis var. guianensis). Common stylo is a tropical, erect to semi-erect, short-lived perennial legume adapted to acid infertile soils.

Trifolium Subterraneum - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia

Environmental Weed Risk Assessments

Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Subterranean clover (Trifolium subterraneum). Subterranean clover is a grazing tolerant annual pasture legume from the Mediterranean Basin which is sown over 8 million hectares (ha) in Western Australia (WA) and 29 million ha across southern Australia. It is used in permanent pastures and in rotation with crops. A range of cultivars are available for areas …

Vicia Faba - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia

Environmental Weed Risk Assessments

Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Faba beans (Vicia faba). Faba beans are a winter growing pulse (legume) crop which are adapted to well-drained medium- to fine-textured soils with a neutral to alkaline pH. In Western Australia (WA), faba beans is a niche crop and production is currently around 6,000 tonnes. Vicia faba minor is grown under broadscale farming conditions in …

Megathyrsus Maximus - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia

Environmental Weed Risk Assessments

Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Panic grass (Megathyrsus maximus). Panic grass (Megathyrsus maximus) is a warm season (C4), perennial grass which is widely used in South America, Japan, India, and sub-tropical Queensland and more recently in the northern agricultural region of Western Australia. It is a productive forage grass for pasture, green-forage, hay and silage. The panic grasses are shade …

Bothriochloa Pertusa - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia

Environmental Weed Risk Assessments

Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Bothriochloa pertusa. Indian bluegrass is a stoloniferous, mat-forming, tropical (C4) perennial grass.

Virus Diseases Of Cereal And Oilseed Crops In Australia: Current Position And Future Challenges, Roger Jones, Murray Sharman, Piotr Trebicki, Solomon Maina, Benjamin S. Congdon

Biosecurity Research Articles

This review summarizes research on virus diseases of cereals and oilseeds in Australia since the 1950s. All viruses known to infect the diverse range of cereal and oilseed crops grown in the continent’s temperate, Mediterranean, subtropical and tropical cropping regions are included. Viruses that occur commonly and have potential to cause the greatest seed yield and quality losses are described in detail, focusing on their biology, epidemiology and management. These are: barley yellow dwarf virus, cereal yellow dwarf virus and wheat streak mosaic virus in wheat, barley, oats, triticale and rye; Johnsongrass mosaic virus in sorghum, maize, sweet corn and …

Grains, Seeds And Hay Industry Funding Scheme Annual Report 2020/2021, Department Of Primary Industries And Regional Development, Western Australia

Biosecurity published reports

The Grains, Seeds and Hay Industry Funding Scheme (IFS) has been operating since 2010 to address biosecurity threats relevant to Western Australia’s (WA) grains, seeds and hay industry. The Scheme was established under the Biosecurity and Agriculture Management Act 2007 to enable growers to identify the pest and disease priorities at a whole-of-industry level and raise funds for activities to address these priorities.

There are currently three Industry Funding Schemes in operation. In addition to the Grains, Seeds and Hay IFS, there is a Cattle IFS and a Sheep and Goat IFS. The three IFSs operate in a similar manner. …

Virulence Assessment Of Australian Pyrenophora Tritici-Repentis Isolates, Pao Theen See, Kefei Chen, Kalai A. Marathamuthu, Nikki Schultz, Manisha Shankar, Caroline S. Moffat

Biosecurity Research Articles

The virulence of 57 Australian isolates of Pyrenophora tritici-repentis (Ptr), a necrotrophic fungal pathogen responsible for the major wheat disease tan spot, was assessed through plant infection assays. Isolates collected from the northern, southern, and western wheat-cropping regions of Australia were evaluated against 16 Australian bread wheat cultivars under controlled growth conditions. Following infection, the wheat panel displayed varying disease symptoms ranging from tiny necrotic specks to spreading chlorotic and necrotic lesions. Analysis of variance indicated that the wheat cultivar exhibited a greater effect on the disease response, explaining 62.7% of the variation, in comparison to the isolate …

Conservation Agriculture For Food Security And Climate Resilience In Nepal, Deepak R. Joshi, Rajan Ghimire, Tulsi Kharel, Umakant Mishrra, Sharon A. Clay

Agronomy, Horticulture and Plant Science Faculty Publications

Achieving the sustainable development goals of the United Nations requires innovations in agriculture and development of climate-smart and economically feasible approaches for smallholder farmers in developing countries. Historical climate data of Nepal, which include 116 yr since 1901, has shown an increasing trend for average temperature by 0.016 ˚C yr–1 whereas precipitation has shown a decreasing trend by 0.137 mm yr–1. Such weather trends could enhance glacier melt associated flooding, and delayed monsoon rainfalls negatively impacting the agricultural production. The Nepalese government is promoting conservation agriculture (CA) through development of low-cost technologies that can be used effectively in difficult terrains. …

Industry Funding Scheme Regulations: A Review Of Operation And Effectiveness, May 2021, Department Of Primary Industries And Regional Development, Western Australia

Biosecurity published reports

Section 147 of the Biosecurity and Agriculture Management Act 2007 requires the Minister for Agriculture and Food to carry out a review of the operation and effectiveness of any regulations made for the purposes of establishing an Industry Funding Scheme (IFS) every five years.

In 2010, regulations establishing three IFSs commenced to address pest and disease threats relevant to Western Australia’s broadacre and pastoral cropping and livestock sectors. This report documents the second fifth-year anniversary statutory review of the following regulations:

• Biosecurity and Agriculture Management Industry Funding Scheme (Cattle) Regulations 2010

• Biosecurity and Agriculture Management Industry Funding Scheme …

Grains, Seeds And Hay Industry Funding Scheme Annual Report 2019/2020, Department Of Primary Industries And Regional Development, Western Australia

Biosecurity published reports

The Grains, Seeds and Hay Industry Funding Scheme (IFS) has been operating since 2010 to address biosecurity threats relevant to Western Australia’s (WA) grains, seeds and hay industry. The Scheme was established under the Biosecurity and Agriculture Management Act 2007 to enable growers to identify the pest and disease priorities at a whole-of-industry level and raise funds for activities to address these priorities.

There are currently three Industry Funding Schemes in operation. In addition to the Grains, Seeds and Hay IFS, there is a Cattle IFS and a Sheep and Goat IFS. The three IFSs operate in a similar manner. …

Plant Diseases Impacting Oaten Hay Production In Australia - A Review, Kylie Chambers, Geoff J. Thomas

Bulletins 4000 -

In Australia, there are a range of fungal, bacterial and viral pathogens that infect oats, impacting on yield and quality of grain and hay crops. The overall impact of these diseases on oaten hay production is not well researched or understood, especially compared to that of other cereal crops. Export hay is evaluated on physical qualities such as stem thickness and greenness and nutritional qualities including water-soluble carbohydrates, neutral detergent fibre, acid detergent fibre and dry matter digestibility. The colour/ greenness of oaten hay can be reduced by disease lesions, chlorosis and saphrophytic fungi growing on dead tissue all of …

The Growing Threat Of Agroterrorism And Strategies For Agricultural Defense, Alyssa Forrest

Senior Honors Theses

Due to the dynamic nature of human conflict, non-traditional terror tactics have evolved to undermine the socioeconomic stability of targeted societies. Considering the landscape in which terrorists operate, emphasis on more subversive methods of biological terror have become prominent in recent decades. Agroterrorism, or the use of plant pathogens to infect a nation’s cultivated crops, is an emerging topic due to its threat to global food security and economic stability. Although emergency preparedness objectives have been enacted at national, state, and even local levels, preemptive measures can no longer remain the sole responsibility of intelligence and law enforcement agencies. The …

Skeleton Weed Program Review - A Review Undertaken For The Grains, Seeds And Hay Industry Funding Scheme Management Committee 2020, Department Of Primary Industries And Regional Development, Western Australia

Biosecurity published reports

This review was undertaken in two stages. Stage 1 reviewed the Skeleton Weed Program and the global situation on skeleton weed. Stage 2 involved targeted stakeholder consultation to build on the information identified through Stage 1 and identify perceptions and attitudes amongst the Western Australian grain/seed/hay industry with regard to the Skeleton Weed Program (the program). The results of these two processes were used to formulate the key findings and recommendations by the Review Panel to assist the Grains, Seeds and Hay Industry Funding Scheme (IFS) Management Committee in its decision-making.

Profitable Break Crops For Management Of Root Lesion Nematodes And Rhizoctonia Solani Ag8, Bec Swift, Alice Butler, Sarah Collins, Carla Wilkinson, Sean Kelly, Daniel Huberli, Vanessa Stewart, Jeremy Lemon, Paul Mattingley, Angelo Loi, Mario F. D'Antuono, Garren Knell

Biosecurity research reports

Aim

To investigate the most effective and profitable break crops in rotation with cereals (wheat) for growers with RLN and R. solani in the same paddock, a two-year (2018 & 2019) break-crop rotation trial was implemented in Dumbleyung and Grass Valley.

Key Messages

• Canola is not a break crop in paddocks if root lesion nematodes (RLN) and Rhizoctonia solani are both present
• Weed free legumes, pulses and pastures are the best options where RLN and R. solani co-exist in a paddock
• Cereals substantially increase RLN and R. solani levels while canola will also increase RLN

Analysis Of Mutations In West Australian Populations Of Blumeria Graminis F. Sp. Hordei Cyp51 Conferring Resistance To Dmi Fungicides, Madeline A. Tucker, Francisco J. Lopez-Ruiz, Hans J. Cools, Jonathon G L Mullins, Kithsiri W. Jayasena, Richard P. Oliver

Biosecurity Research Articles

BACKGROUND

Powdery mildew caused by Blumeria graminis f. sp. hordei (Bgh) is a constant threat to barley production but is generally well controlled through combinations of host genetics and fungicides. An epidemic of barley powdery mildew was observed from 2007 to 2013 in the West Australian grain belt.

RESULTS

We collected isolates across Australia, examined their sensitivity to demethylation inhibitor (DMI) fungicides and sequenced the Cyp51B target gene. Five amino acid substitutions were found, of which four were novel. The most resistant haplotypes increased in prevalence from 0% in 2009 to 16% in 2010 and 90% in 2011. …

Grains, Seeds And Hay Industry Funding Scheme Annual Report 2018/2019, Department Of Primary Industries And Regional Development, Western Australia

Biosecurity published reports

The Grains, Seeds and Hay Industry Funding Scheme (IFS) has been operating since 2010 to address biosecurity threats relevant to Western Australia’s (WA) grains, seeds and hay industry. The Scheme was established under the Biosecurity and Agriculture Management Act 2007 to enable growers to identify the pest and disease priorities at a whole-of-industry level and raise funds for activities to address these priorities.

There are currently three Industry Funding Schemes in operation. In addition to the Grains, Seeds and Hay IFS, there is a Cattle IFS and a Sheep and Goat IFS. The three IFSs operate in a similar manner. …

Bedstraw Eradication Program: Annual Report To Grain Growers 2018/2019, Department Of Primary Industries And Regional Development, Western Australia

Biosecurity published reports

The Grains, Seeds and Hay Industry Management Committee (GSHIMC) believes the current program is delivering the best value for the funding provided and is achieving the project outcomes of containment and eradication.

Approved programs are developed annually for each infested property in consultation with GSHIMC, the Department of Primary Industries and Regional Development (DPIRD) and the landholders detailing management actions, estimated costs and timeframes of the agreed actions.

The two infested properties have now entered the final Release Phase of a nine-year eradication program. The program is implemented by DPIRD and includes six consecutive years of winter spray treatments, followed …

Application Of Loop-Mediated Isothermal Amplification In An Early Warning System For Epidemics Of An Externally Sourced Plant Virus, Benjamin S. Congdon, Paul Matson, Farhana Begum, Monica Kehoe, Brenda A. Coutts

Biosecurity Research Articles

Restricting Turnip yellows virus (TuYV) spread in canola (Brassica napus) crops often relies upon the application of systemic insecticides to protect young vulnerable plants from wide-scale green-peach aphid (GPA; Myzus persicae) colonization and subsequent virus infection. For these to be applied at the optimal time to ensure they prevent epidemics, growers would need to be forewarned of incoming viruliferous aphid migration and colonization. This study was conducted to field validate a loop-mediated isothermal amplification (LAMP) protocol designed to detect TuYV in aphids caught on traps and develop an early warning system for TuYV epidemics. Double-sided yellow sticky traps were deployed …

The Survival Of Mediterranean Fruit Fly (Diptera: Tephritidae) Over Winter In Western Australia, Touhidur Rahman, Sonya Broughton

Biosecurity Research Articles

The Mediterranean fruit fly, Ceratitis capitata (Wiedemann) (Diptera: Tephritidae) is one of the most economically important pest insects of fruit crops worldwide. Mediterranean fruit fly can cause up to 100% crop loss in susceptible fruit. In order to formulate best management practices, it is critical to understand how Mediterranean fruit fly overwinters in a given geographical location and bridge the gap between autumn and spring populations. In this study, we evaluated the overwintering potential of Mediterranean fruit fly immature and adult stages in two locations in Perth Hills, Western Australia. We also monitored wild adult Mediterranean fruit fly populations for …