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ACP (Asian citrus psyllid) found in San Joaquin county

You may have heard that ACP (Asian citrus psyllid) was found in Lodi, Manteca and recently Stockton. The Master Gardeners are ready to answer your questions about this invasive pest. Click here to find out how you can help prevent the spread of this unwanted pest and what to do if you think you have it.



What's Growing On - SJMG Blog

Valley Gardener's Journal For Year-Round Blooms

The San Joaquin Master Gardeners are excited about the Valley Gardener's Journal For Year-Round Blooms. This garden journal is now available for purchase and is great for any gardener. For more info click here!  

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Garden Notes  Master Gardener Newsletter

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UC Garden Blogs
  • Neal Williams, newly elected Fellow of the California Academy of Sciences,  is
    Neal Williams Inducted as Fellow, California Academy of Sciences

    The highly respected California Academy of Sciences greeted its 2019 Class of Fellows on Oct. 15, and one of them is a pollination ecologist from the University of California, Davis.  Professor Neal Williams of the UC Davis Department of...

    By Kathy Keatley Garvey
    Author - Communications specialist
  • A newly eclosed Gulf Fritillary dries its wings while a caterpillar crawls around looking for food. (Photo by Kathy Keatley Garvey)
    Gulf Fritillary: A Glorious Butterfly

    It's commonly called a "passion butterfly," but we call it a Gulf Fritillary (Agraulis vanillaea) or Gulf Frit. Or "spectacular." A sure sign of autumn: A skeletonized passionflower vine (Passiflora) A Gulf Fritillary (Agraulis vanillae)...

    By Kathy Keatley Garvey
    Author - Communications specialist
  • Bohart Museum senior museum scientist Steve Heydon with his Pteromalids or jewel wasps. (Photo by Kathy Keatley Garvey)
    Bohart Museum Open House on Oct 19: Fright or Delight?

    It won't be a Fright Night or a Delight Night. After all, it's in the afternoon. But the Bohart Museum of Entomology open house on "Parasitoid Palooza" on Saturday, Oct. 19 from 1 to 4 p.m. promises to provide a touch of Halloween, what with all the...

    By Kathy Keatley Garvey
    Author - Communications specialist
  • Water primrose along the American River.
    Biological control of invasive water primroses

    Exotic water primroses (Ludwigia spp.) are aggressive invaders in both aquatic and riparian ecosystems. The plants form dense mats over the water surface. These mats constrain navigation and interfere with recreational activities, irrigation, drainage,...

    By Angelica Reddy
    By Guy B Kyser
    Posted by - Specialist