Forests

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Argentine Ant vs Tamarixia
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Ask the Experts Webinars from UC IPM

April 4, 2025
By Ben A Faber
What Are the UC Ag Experts Talking About?Event NameDateUC Ag Experts Talk: Considerations for Cover Crops and Weed Management 3/19/2025UC Ag Experts Talk: Integrated Soil Health Management 4/30/2025UC Ag Experts Talk: Mealybug Management in Citrus Orchards in California 5/21/2025What is…
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Sample benefits of stormwater management
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Stormwater Management in Southern California

March 31, 2025
By Daniel Gonzalez, Esther N Lofton, Erik C Porse
Stormwater management is the strategic practice of controlling and utilizing stormwater runoff from precipitation events as a valuable water supply source. Its main goals are to protect our environment and create healthier, sustainable communities. Exhibiting many different methods and tools for rainwater…
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Photo Forest and Lake by Katie Musial on Unsplash
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2 RFPs - Vertebrate Pest Control Research and Forest Monitoring

March 27, 2025
By Kendra T Rose
Dear Colleagues,1) California Department of Food and Agriculture’s (CDFA) Integrated Pest Control Branch is now accepting applications for the Vertebrate Pest Control Research Program (VPCRP). This funding opportunity is designed to support innovative research and education projects aimed at…
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Valley oak tree atop a hill of brown grass.
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Webinar: Mediterranean Oak Borer and Other Oak Pests

March 26, 2025
By Lauren Fordyce
Join UC IPM for a free webinar on the invasive Mediterranean Oak Borer (MOB) and other important oak tree pests on April 10, 2025 from 6:00pm to 7:30pm. The Mediterranean Oak Borer (MOB) is an invasive ambrosia beetle that infests several species of white oaks in California: valley oak, blue oak,…
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Armillaria
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Armillaria

 Armillaria root rot, also known as Oak root fungus, is a disease of many different plants.  There is no known effective cure.  Root rot fungus disease of trees and woody plants. Affects palms, succulents, ferns and other herbaceous plants like begonia, daffodil, dahlia, and geranium.  No…
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Damping Off
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Damping Off

Seedlings sometimes fail to sprout or die soon after. Seeds may rot before germinating, shoots may decay before they emerge, or stems of seedlings may be attacked near the soil line, causing young plants to collapse. These diseases are collectively called “damping off,” likely caused by a number of soil…
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downy mildew
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Downy Mildew

Downy mildews, including Peronospora and Plasmopara spp., are pathogenic water molds (oomycetes) that primarily damage foliage. Hosts include cane berries, roses, various herbaceous ornamentals, and many fruit, grain, and vegetable crops. CategoryFungiSigns/SymptomsDowny mildew causes pale green to…
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Brown, scorched-looking leaves are symptoms of fire blight in trees in the apple and pear family. Photo: Sebastian Stabinger
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Fire Blight

 Fire blight is a common and frequently destructive disease of pome fruit trees and related plants.  The disease can destroy limbs and even entire shrubs or trees. Caused by the bacterium Erwinia amylovora. Pear (Pyrus species) and quince (Cydonia) are extremely susceptible.  Apple, crabapple …
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