plant pathogen detection News

  • Plants host pathogenic bacteria from livestock farming

    Disease-causing bacteria resulting from livestock farming can contaminate food products and find their way to humans. This occurs remarkably effectively via plants, which explains why recent outbreaks due to infection with EHEC and other E. coli and Salmonella strains are regularly attributed to the consumption of fresh vegetables. These are the findings of researchers from Wageningen UR ...

  • Soil gives away soybean pathogen’s presence

    New research reveals that soil pH is a useful guide for farmers and agronomists to detect and manage soybean cyst nematode, a devastating soybean pathogen. The investigation uncovered a relationship between high soil pH, which is already outside the ideal growing conditions for soybean, and high populations of cyst nematodes. Scientists from Iowa State University and University of ...

  • New test can detect plant viruses faster, cheaper

    A new test could save time and money diagnosing plant viruses, some of which can destroy millions of dollars in crops each year in Florida, says a University of Florida Institute of Food and Agricultural Sciences researcher. In a newly published study, Jane Polston, a UF/IFAS plant pathology professor, examined several ways to detect the DNA genome of begomoviruses. These viruses have emerged ...

  • European trees planted in China to identify potentially invasive species in our forests

    Most of the exotic species which attack plants in Europe now come from Asia. INRA scientists, together with teams from the Academy of Sciences in Beijing and the Forestry University in Zhejiang have devised a new method for detecting potential invaders in their region of origin before they are introduced on another continent. European sentinel trees were planted in China for four years, and ...

  • Xylella bacteria increasingly affecting olive trees in Southern Europe

    EU-wide emergency measures came into force on 19 May to deal with the bacterium Xylella fastidiosa, the cause of a devastating disease in various plants including olive trees in Italy. Xylella fastidiosa is a quarantine organism in the EU. There are no pesticides for combating this bacterial disease, so reliable detection and diagnostic methods are essential for preventing the spread of the ...

  • Combatting diseases in the greenhouse before they become visible

    A camera that maps photosynthesis, a DNA test that can measure the slightest traces of pathogens, or a precision spray system that only affects the plant and not the surrounding air… The Gezonde Kas (‘healthy greenhouse’) project has, over the last four years, allowed for the development of a sophisticated system of monitoring and disease control. It is now ready for practical ...

  • Southern soils mitigate manure microbes

    That swine manure sprayed on to fields adds valuable nutrients to the soil is well known. But what is not known is whether all that manure is bringing harmful bacteria with it. A new study looks at the levels of nutrients and bacteria in soils of fields that have been sprayed with manure for fifteen years or more. The research team, composed of scientists from the USDA-ARS Crop Science Research ...

  • Managing Late Blight of Potatoes and Tomatoes

    Late blight is one of the most serious diseases of potatoes and tomatoes worldwide, resulting in significant yield and quality losses annually. In Alberta, late blight occurs infrequently, but can have devastating impacts in the years when it reaches epidemic levels.  “This disease is caused by a fungal pathogen called Phytophthora infestans,” says Robert Spencer, ...

  • Agdia Releases New Molecular Test for Avocado Sunblotch Viroid

    Agdia, Inc. (Elkhart, IN) has commercialized a Nucleic Acid Hybridization Assay for Avocado sunblotch viroid (ASBVd). ASBVd is found in avocado growing regions worldwide.  Trees that are infected with ASBVd can result in a loss of yield and / or production of unmarketable fruit.  However, symptoms are not always present making pro-active testing a critical disease control ...


    By Agdia Incorporated

  • Global stem rust tracker unveiled in China

    A global monitoring system was unveiled today to track the spread of devastating wheat pathogens known as stem rusts, at the 2012 Borlaug Global Rust Initiative (BGRI) Technical Workshop in China. The functional surveillance and monitoring network, the Global Cereal Rust Monitoring System ('Rust Tracker'), now covers 27 countries and a large ...


    By SciDev.Net

  • International seminar on Xylella fastidiosa

    The International Olive Council (IOC) and the International Centre for Advanced Mediterranean Agronomic Studies (CIHEAM), under the Memorandum of Understanding signed in July 2016, have organised a seminar on Xylella fastidiosa¸ the bacterium which, since 2013, has been causing the death of hundreds of olive trees in the Italian region of Apulia, raising grave concerns among all olive ...

  • FSIS Issues Comprehensive Strategy to Reduce Salmonella

    Last month, the U.S. Department of Agriculture's (USDA) Food Safety and Inspection Service (FSIS) released its Salmonella Action Plan.  It outlines the steps it will take to address the most pressing problem it faces -- Salmonella in meat and poultry products. According to the agency, an estimated 1.3 million illnesses can be attributed to Salmonella each year. ...


    By EMSL Analytical, Inc.

  • Ohio Poultry Owners Advised to Increase Biosecurity as Virus Spreads in Western U.S.

    Three worrisome strains of avian flu have been detected in birds out West. These viruses can cause serious disease in birds, and their appearance has prompted poultry veterinarians at The Ohio State University to recommend that Ohio’s commercial producers and backyard chicken enthusiasts alike take precautions to protect their flocks. The strains are related to a virus ...


    By Ohio State University

  • Bees under bombardment

    More than a dozen factors, ranging from declines in flowering plants and the use of memory-damaging insecticides to the world-wide spread of pests and air pollution, may be behind the emerging decline of bee colonies across many parts of the globe. Scientists are warning that without profound changes to the way human-beings manage the planet, declines in pollinators needed to feed a growing ...

  • UF/IFAS scientists find potential biological control for avocado-ravaging disease

    University of Florida scientists believe they’ve found what could be the first biological control strategy against laurel wilt, a disease that threatens the state’s $54 million-a-year avocado industry. Red ambrosia beetles bore holes into healthy avocado trees, bringing with them the pathogen that causes laurel wilt. Growers control the beetles that carry and spread laurel wilt by ...


    By University of Florida

  • USDA Announces $22 Million Available for Research to Combat Citrus Greening

    The U.S. Department of Agriculture (USDA) today announced the availability of $22 million in grants to help citrus producers fight Huanglongbing (HLB), commonly known as citrus greening disease. This funding is available through the Specialty Crop Research Initiative (SCRI) Citrus Disease Research and Extension Program (CDRE), which was authorized by the 2014 Farm Bill and is administered by ...

  • Gardening and Spring Activities Should Include Learning About Invasive Pests That can Devastate America`s Trees

    Now that spring has arrived, and summer is quickly approaching, The Nature Conservancy, along with nursery industry partners and scientists, encourages people to take the time to learn more about tree-killing invasive insects and diseases as they spend more time outdoors. Everyday citizens can help detect forest pests and prevent their spread when are they are observant of the trees and forests ...


    By The Nature Conservancy

  • Videos Highlight National Soybean Rust Program, Encourage Growers to Remain Vigilant

    Growers will find key information to keep in mind about the ongoing threat of soybean rust and actions they can take to minimize potential losses from this disease in two videos now available online. The videos include highlights from numerous research and Extension projects carried out by land-grant university researchers from around the country involved in soybean rust research and ...


    By Ohio State University

  • Keeping tabs on the next generation of transgenic crops

    A team of government and university crop scientists from across Canada has developed a scientific framework for monitoring the release of second-generation genetically modified crops. The framework is designed to assess the risks of novel genes entering wild populations. First-generation genetically modified (GM)/transgenic crops with novel traits have been grown in a number of countries since ...

  • USDA awards more than US$28m in specialty crop research

    Agriculture Secretary Ed Schafer has announced that USDA awarded more than $28 million through the Specialty Crop Research Initiative (SCRI) to solve critical specialty crop agriculture issues, address priorities and solve problems through multifunctional research and extension. The Specialty Crop Research Initiative was established by the 2008 Farm Bill to support the specialty crop industry by ...

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