The Quest To Identify A New Virus Disease Of Sunflower From Nebraska,
2022
University of Nebraska–Lincoln
The Quest To Identify A New Virus Disease Of Sunflower From Nebraska, Robert M. Harveson, Maher Al Rwahnih, California Department Of Food And Agriculture, Alex Karasev, Tom J. Gulya, Jeff Bradshaw
Panhandle Research and Extension Center
Between 2010 and 2018, sunflower plants exhibiting virus-like symptoms, including stunting, mottling, and chlorotic ringspots on leaves, were observed from commercial fields and research plots from four sites within three distinct counties of western Nebraska (Box Butte, Kimball, and Scotts Bluff). Near identical symptoms from field samples were reproduced on seedlings mechanically in the greenhouse on multiple occasions, confirming the presence of a sap-transmissible virus from each site. Symptomatic greenhouse-inoculated plants from the 2010 and 2011 Box Butte samples tested negative for sunflower mosaic virus (SuMV), sunflower chlorotic mottle virus (SuCMoV), and all potyviruses in general by ELISA and RT-PCR. …
Developing An Injury Severity To Yield Loss Relationship For Soybean Gall Midge (Diptera: Cecidomyiidae),
2022
Iowa State University
Developing An Injury Severity To Yield Loss Relationship For Soybean Gall Midge (Diptera: Cecidomyiidae), Mitchell L. Helton, Nicholas A. Tinsley, Anthony J. Mcmechan, Erin W. Hodgson
Eastern Nebraska Research, Extension, and Education Center
Soybean gall midge, Resseliella maxima Gagné (Diptera: Cecidomyiidae), is a newly identified pest confirmed on soybean, Glycine max (L.) Merr. (Fabales: Fabaceae). To date, soybean gall midge has been found in Nebraska, Iowa, South Dakota, Minnesota, and Missouri, and has caused severe economic loss to commercial fields since 2018. Much is still unknown about this pest, so research efforts have been focused on biology and management. Larvae feed on the inside of the stem just above the soil line and are difficult to access and time-consuming to sample. In order to accelerate nondestructive sampling efforts, we developed an injury rating …
Cicer Arietinum - Environmental Weed Risk Assessment 2022,
2022
Department of Primary Industries and Regional Development, Western Australia
Cicer Arietinum - 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 Chickpeas (Cicer arietinum). Chickpeas are a widely cultivated annual pulse crop used for human consumption and as animal feed. They have been cultivated for thousands of years in the Middle East and most likely were first domesticated in what is now modern-day Turkey. There are two groups, the desi and kabuli types, which are differentiated …
Citrus Reticulata - Environmental Weed Risk Assessment 2022,
2022
Department of Primary Industries and Regional Development, Western Australia
Citrus Reticulata - 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 Mandarin (Citrus reticulata). Mandarin are part of the Citrus genus of small evergreen flowering trees and shrubs in the rue family, Rutaceae. They are native to South China and Japan in East Asia, and Vietnam in Southeast Asia. Mandarin is an important horticultural crop which is widely cultivated around the world. The Western Australian citrus …
Helianthus Annuus - Environmental Weed Risk Assessment 2022,
2022
Department of Primary Industries and Regional Development, Western Australia
Helianthus Annuus - 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 Sunflower (Helianthus annuus). Sunflower (Helianthus annuus) is a summer-growing plant native to North America and now grown over large areas throughout the USA, Eastern Europe, China and South America. It has also been grown for many years both under irrigation, and in summer rainfall areas of Australia (Queensland and New South Wales). Sunflower seed is …
Lolium Rigidum - Environmental Weed Risk Assessment 2022,
2022
Department of Primary Industries and Regional Development, Western Australia
Lolium Rigidum - 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 Annual ryegrass (Lolium rigidum). Annual ryegrass (Wimmera ryegrass) is a temperate annual grass which is widely naturalized in south-western Australia. In irrigated experiments in northern Western Australia (WA) annual ryegrass produced high-quality feed but had modest productivity over winter under subtropical conditions and as such does not appear to be a viable forage option (Moore …
Medicago Orbicularis - Environmental Weed Risk Assessment 2022,
2022
Department of Primary Industries and Regional Development, Western Australia
Medicago Orbicularis - 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 Button medic (Medicago orbicularis). Button medic is a temperate annual pasture legume native to the Mediterranean region, which is adapted to well drained, alkaline sandy loam soils (pHwater > 6.5) in low rainfall (AAR > 275mm) temperate cropping zones. Used as a self-regenerating autumn-to-spring growing annual pasture (Howie et al. 2007). A very minor pasture species if …
Passiflora Edulis - Environmental Weed Risk Assessment 2022,
2022
Department of Primary Industries and Regional Development, Western Australia
Passiflora Edulis - 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 Passionfruit (Passiflora edulis). Passiflora edulis, commonly known as passionfruit, is a perennial vine species of passionflower native to southern Brazil through Paraguay and northern Argentina. It is cultivated commercially in Hawaii, Australia, South Africa, Venezuela, Brazil, Peru, Ecuador and Colombia for the sweet, seedy fruit. In Western Australia (WA) passionfruit has been grown commercially in …
Vicia Villosa - Environmental Weed Risk Assessment 2022,
2022
Department of Primary Industries and Regional Development, Western Australia
Vicia Villosa - 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 Woolly pod vetch (Vicia villosa). Woolly pod vetch is a self-regenerating annual type of vetch native to some of Europe and western Asia. It is adapted to a wide range of soil types, especially well-drained soils, but does not tolerate waterlogging. The seed (grain) can cause toxicity and even death of livestock. Woolly pod vetch …
Asparagus Officinalis - Environmental Weed Risk Assessment 2022,
2022
Department of Primary Industries and Regional Development, Western Australia
Asparagus Officinalis - 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 Asparagus officinalis. Asparagus (garden asparagus) is an herbaceous, perennial plant, and the young shoots are used as a spring vegetable. Native to Europe, it originally grew in coastal sand dunes and has some salt tolerance.
Brassica Napus - Environmental Weed Risk Assessment 2022,
2022
Department of Primary Industries and Regional Development, Western Australia
Brassica Napus - 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 Brassica napus (canola). Canola is a winter growing oilseed crop from the Brassica family. Canola oil is a vegetable oil derived from a variety of rapeseed that is low in erucic acid. Canola is the third largest broadacre crop grown in south-western Australia and is widely grown as a break crop in cereal rotations. Western …
Citrus X Paradisi - Environmental Weed Risk Assessment 2022,
2022
Department of Primary Industries and Regional Development, Western Australia
Citrus X Paradisi - 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 Grapefruit (Citrus x paradisi). Grapefruit are part of the Citrus genus of small evergreen flowering trees and shrubs in the rue family, Rutaceae. Grapefruit originated as a natural hybrid between orange and pomelo. Grapefruit are an important horticultural crop which is widely cultivated around the world. The Western Australian citrus industry primarily supplies the local …
Hordeum Vulgare - Environmental Weed Risk Assessment 2022,
2022
Department of Primary Industries and Regional Development, Western Australia
Hordeum Vulgare - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Environmental Weed Risk Assessments
Introducing new plants to an are a 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 Barley (Hordeum vulgare). Barley is a major cereal grain grown in temperate climates globally. It was one of the first cultivated grains, particularly in Eurasia as early as 10,000 years ago. Barley has been used as animal fodder, as a source of fermentable material for beer and certain distilled beverages, and as a component …
Festuca Arundinacea - Environmental Weed Risk Assessment 2022,
2022
Department of Primary Industries and Regional Development, Western Australia
Festuca Arundinacea - 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 Tall fescue (Festuca arundinacea). Tall fescue is a temperate, perennial bunch grass native to Europe, temperate Asia and north-west Africa and has been introduced into temperate North and South America, New Zealand, South Africa and southern Australia because of its value as a forage. There are two types of tall fescue; the spring/summer-active (temperate) types …
Lupinus Angustifolius - Environmental Weed Risk Assessment 2022,
2022
Department of Primary Industries and Regional Development, Western Australia
Lupinus Angustifolius - 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 Narrowleaf lupins (Lupinus angustifolius). Narrowleaf lupins (white lupins, Australian sweet lupins) is an annual pulse crop first domesticated in Western Australia (WA). Farmers in WA produce about 80% of total world production and are the only significant exporters of lupin grain. Lupins are well suited to the deep, acid sandy soils that occur over large …
Mangifera Indica - Environmental Weed Risk Assessment 2022,
2022
Department of Primary Industries and Regional Development, Western Australia
Mangifera Indica - 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 Mango (Mangifera indica). The mango is a densely foliaged evergreen tropical fruit tree, which is native to north-eastern India and Myanmar. It is now widespread in its distribution and has been cultivated since ancient times. Mango is by volume the second largest tropical fruit crop in the world after bananas. Mangoes are grown commercially in …
Medicago Scutellata - Environmental Weed Risk Assessment 2022,
2022
Department of Primary Industries and Regional Development, Western Australia
Medicago Scutellata - 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 Snail medic (Medicago scutellata). Snail medic is a temperate annual pasture legume native to the Mediterranean region, which is well adapted to alkaline, cracking clay soils. A very minor pasture species in south-western Australia but is grown in subtropical environments like south-east Queensland as a winter-spring growing legume to complement summer growing grass pastures (Howie …
Puccinellia Ciliata - Environmental Weed Risk Assessment 2022,
2022
Department of Primary Industries and Regional Development, Western Australia
Puccinellia Ciliata - 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 Puccinellia (Puccinellia ciliata). Puccinellia is a moderately salt-tolerant and moderate to highly waterlogging tolerant perennial grass native to Turkey. It was introduced into Western Australia (WA) by CSIRO in the early 1960s as a pioneer plant for revegetating saltland and has been widely sown in south-western Australia to revegetate saline land. The relatively poor production …
Sorghum X Almum - Environmental Weed Risk Assessment 2022,
2022
Department of Primary Industries and Regional Development, Western Australia
Sorghum X Almum - 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 Perennial sorghum (Sorghum x almum). Perennial sorghum is an erect, tussocky, short-lived perennial grass with numerous tillers which under good growing conditions can reach about 3.5m at maturity.
Stylosanthes Seabrana - Environmental Weed Risk Assessment 2022,
2022
Department of Primary Industries and Regional Development, Western Australia
Stylosanthes Seabrana - 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 Caatinga stylo (Stylosanthes seabrana). Stylosanthes seabrana is a perennial legume native to Bahia Region of Brazil. The common name ‘Caatinga’ is a type of subtropical vegetation (xeric shrubland and thorn forest), and an ecoregion characterized by this vegetation in interior north-eastern Brazil. Caatinga stylo is a short-lived perennial and generally lives between 2 to 4 …
