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  • Adult, male red striped weevil. Photo by John Kabashima
    Invasive pests kill thousands of trees, but scientists see some successes

    Jan 18, 2023

    • Environment
  • The Organic Agriculture Institute is conducting a statewide needs assessment for organic agriculture and forming the California Organic Agriculture Knowledge Network. Photo by Evett Kilmartin
    Organic Ag Institute begins forming knowledge network, assessing needs

    Nov 15, 2021

    • Agriculture
    • Food
    • Innovation
  • Dead and dying coffeeberry (Frangula californica) shrubs are clearly visible in a failing restoration in a coastal scrub site in San Mateo County, dominated by shrubs with occasional small groups of trees. Phytophthora crassamura and P. megasperma were both isolated directly from symptomatic tissue and from the rhizosphere (i.e. soil and fine roots) of diseased plants. Photo by Laura Sims.
    Phytophthora invasions linked to ecological restorations

    Mar 22, 2021

    • Environment
  • A ball point pen points to a Mediterranean Oak Borer, indicating its tiny size.
    Attention to oak woodland conservation does not wane amid COVID-19 crisis

    Apr 28, 2020

    • Natural Resources
  • Matteo Garbelotto examines bay laurel for sudden oak death symptoms at the UC Berkeley campus.
    Citizen science SOD Blitz starts April 11 with new COVID-19 safety measures

    Apr 3, 2020

    • Environment
  • Dead tanoaks surrounded by Douglas firs in Humboldt County. Sudden oak death threatens survival of several tree species. Photo by Yana Valachovic
    Volunteers needed to stop SOD from killing oak trees

    Mar 9, 2020

  • ANR in the news November 1-15

    Nov 30, 2019

  • UCCE specialist Matteo Garbelotto refers to a resource provided to citizen science volunteers who participate in the 2019 SOD Blitz. More than 400 participants helped gather data this year. (Photo: Jim Block)
    2019 SODBlitz shows Sudden Oak Death on the rise in California

    Nov 14, 2019

    • Environment
  • Sudden oak death bark sampling. (Photo: Evett Kilmartin)
    2020 may see increased number of trees suffering 'sudden oak death'

    Jun 4, 2019

    • Environment
  • Dead tanoak trees within a Humboldt County forest. (Photo: Suddenoakdeath.org)
    Sudden oak death bioblitz to help stem the spread of disease

    Apr 24, 2019

    • Environment
  • Google map shows results of the SOD blitzes available online at sodblitz.organd SODMAP.org. Green icons identify trees sampled that tested negative for SOD. Red icons were SOD-infected trees.
    Dry conditions keep sudden oak death in check, yet significant outbreaks continue

    Oct 9, 2018

    • Environment
    • Natural Resources
  • The most reliable early symptom of sudden oak death is dark sap exuding from trunk base, as on this coast live oak. (Photo: UC IPM)
    High interest in SOD spread to San Luis Obispo County

    Nov 18, 2016

  • Encroaching conifers obscure a stand of oak in Redwood National Park.
    California Assembly approved bill to protect oak woodlands

    Jun 7, 2016

  • Evergreen conifers crowd out oak trees. Photo by Redwood National Park staff
    Partnership brings $2.6 million to North Coast to restore oak woodlands

    Feb 22, 2016

  • These bay laurel leaves show P. ramorum symptoms.
    Sudden oak death moving to urban areas; 3 steps to protect oaks

    Sep 25, 2015

  • screen-shot-2015-07-20-at-12.25.46-pm
    Celebrate the harvest - visit a farm

    Sep 11, 2015

  • Humboldt County tanoak trees that have succumbed to sudden oak death.
    Sudden oak death still a threat and still spreading

    Jun 19, 2015

  • Mulch conserves water around the base of a tree.
    Help an oak tree tolerate severe drought

    Apr 24, 2015

  • Blue oak trees regenerate after thinning.
    Thinning is an effective tool for management of blue oak woodlands

    Feb 20, 2015

  • A turkey vulture spreads its wings at Hopland. (Photo: Robert Keiffer)
    Turkey vultures have peculiar nesting habits, study finds

    Jan 9, 2015

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