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You are here: Home / Archives for Plant Pests and Diseases / Plant Diseases / Phytophthora

USDA revises Phytophthora regulations

By Curt Kipp — Posted January 14, 2014

Update, Jan. 15: The Capital Press agricultural newspaper (Salem, Ore.) has published a news story about the change in rules and what it means, including more in-depth comments from OAN Executive Director Jeff Stone. ——————————— The USDA Animal and Plant Health Inspection Service (APHIS) announced that it has revised regulations (PDF) that are intended to […]

Filed Under: Nursery News, Phytophthora, Plant Pests and Diseases Tagged With: Invasive species, OAN, ODA, Oregon Department of Agriculture, Pests and Diseases, Phytophthora ramorum, Politics, Regulations, USDA, Wholesale Nurseries

Sudden oak death wreaking havoc on the Isle of Man

By Curt Kipp — Posted October 11, 2013

One might expect an island to be less susceptible to an invasive plant pathogen than most places. Phytophthora ramorum, which causes sudden oak death, can’t cross the sea on its own — it has to be carried across via infected plant material. At some point, that’s exactly what happened on the Isle of Man. The island […]

Filed Under: Phytophthora, Plant Pests and Diseases Tagged With: Pests and Diseases, Phytophthora ramorum

Oregon gets an A minus on invasive species report card

By Curt Kipp — Posted January 15, 2013

Oregon deserves an A-minus for its efforts to limit and control the introduction of invasive plants, animals and pathogens into the state, according to the Oregon Invasive Species Council. The group issued its annual Invasive Species Report Card on Jan. 9. Some highlights pertaining to the nursery industry include the following: The Oregon Legislature passed […]

Filed Under: Asian Longhorned Beetle, Beetles, Borers, Emerald Ash Borer, Insects, Phytophthora, Plant Diseases, Plant Pests and Diseases Tagged With: Invasive species, ODA, Phytophthora ramorum, Plants, Politics

USDA awards $2.7 million for research into plant pathogens

By Curt Kipp — Posted November 16, 2010

The U.S. Department of Agriculture’s National Institute of Food and Agriculture has awarded group of colleges, led by Virginia Tech, a $2.7 million grant to conduct research on integrated management of zoosporic pathogens and irrigation water quality. Researchers will look for biological control methods for fighting Phythophthora, Pythium and other pathogens. Researchers will also “develop […]

Filed Under: Phytophthora, Plant Diseases, Plant Pests and Diseases, Pythium Root Rot, Root Rots Tagged With: Pests and Diseases, Phytophthora ramorum, Plants, Research, Sustainability, USDA, Water, Wholesale Nurseries

APHIS delays federal order on interstate plant shipments

By Curt Kipp — Posted June 18, 2010

The USDA Animal and Plant Health Inspection Service (APHIS) today has delayed the effective date of Federal Order DA-2021, which was announced May 27. It initially was scheduled to take effect on Monday, June 21, but now it officially has been pushed back to Monday, July 19. The order requires West Coast states to pre-notify […]

Filed Under: Phytophthora, Plant Pests and Diseases Tagged With: OAN, Phytophthora ramorum, Transportation, USDA, Wholesale Nurseries

South Carolina rescinds regulation that blocked trade

By Curt Kipp — Posted April 20, 2010

Nursery growers in Oregon and California are once again free to ship their plants to South Carolina. Officials in that state have rescinded Regulation 27-78, which imposed state-based rules pertaining to Phytophthora ramorum. The Oregon Association of Nurseries (OAN) and the California Association of Nurseries and Garden Centers (CANGC) sued to overturn the regulation, on […]

Filed Under: Phytophthora, Plant Pests and Diseases Tagged With: OAN, Pests and Diseases, Phytophthora ramorum, Politics, Regulations, Wholesale Nurseries

Oregon, California growers sue to reopen South Carolina plant market

By Curt Kipp — Posted March 9, 2010

Nurseries can’t afford to let disease spread. They take seriously the threat of Phytophthora ramorum, commonly known as sudden oak death – and so does the USDA Animal and Plant Health Inspection Service (APHIS). For several years, APHIS has had rules in effect to protect ecosystems and plant material. Nurseries in Oregon and California have […]

Filed Under: Phytophthora, Plant Pests and Diseases Tagged With: Business, CANGC, Invasive species, OAN, OAN Members, Pests and Diseases, Phytophthora ramorum, USDA, Wholesale Nurseries

New plants added to P. ramorum regulated list

By Curt Kipp — Posted February 26, 2010

Officials with the USDA Animal and Plant Health Inspection Service Plant Protection and Quarantine program (PPQ) issued a federal order on Monday (Feb. 22) adding 10 species to the list of plants regulated for Phytophthora ramorum. The plants have been identified them as hosts of the pathogen, and now will be regulated in accordance with […]

Filed Under: Phytophthora, Plant Pests and Diseases Tagged With: Pests and Diseases, Regulations, USDA, Wholesale Nurseries

A persistent pathogen

By Curt Kipp — Posted July 24, 2009

Scientists are wondering: Why does Phytophthora ramorum – the fungus that causes sudden oak death – survive sometimes even if all host material is removed, the area is fumigated and all runoff is ceased? Read more in this Page A-1 story from today’s San Francisco Chronicle.

Filed Under: Phytophthora, Plant Pests and Diseases Tagged With: Invasive species, Pests and Diseases, Plants

A P. ramorum breakthrough

By Curt Kipp — Posted April 3, 2009

Researchers probing linkages between the two North American strains and the European strain of Phytophthora ramorum – the pathogen that causes Sudden Oak Death – say they have found important clues to their origins. According to a USDA Agricultural Research service press release: Their evidence showed that the European lineage may be older than the […]

Filed Under: Phytophthora, Plant Pests and Diseases Tagged With: Invasive species, Operations, Pests and Diseases, Plants, Research, Soil and substrates, Trees, USDA, Wholesale Nurseries

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