UCCE Lassen County

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Stick insect from Bohart Museum of Entomology crawling on arm. (Photo by Kathy Keatley Garvey)
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When Insects Popped Up--And a Lobster Did, Too

April 18th, 2025
Bug Squad BlogBy Kathy Keatley Garvey When the Bohart Museum of Entomology erected its pop-up tent on the Briggs Hall lawn during the recent campuswide UC Davis Picnic Day, insects popped up.They included walking sticks (stick insects) and a few specimens from the Bohart Museum's global collection of…
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Mining bee (Andrena) on Passiflora in Vacaville, Calif. (Photo by Kathy Keatley Garvey)
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In Search of the Mining Bees

April 17th, 2025
 Bug Squad BlogBy Kathy Keatley GarveyThere she was,  a mining bee (genus Andrena) sunning herself on a Passiflora (passionflower vine). She did not notice me.Such a tiny bee, about the size of a grain of rice. It's a solitary ground-nesting bee known as "an early spring bee" and it lives only a…
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Person working soil with rake in foreground
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Difference Between Soil and Dirt

April 17th, 2025
By Carmen Kappos Inyo-Mono Master Gardener Volunteer While the words soil and dirt are often used interchangeably there are differences between them. Recently, Dustin Blakey, our local UCCE Farm Advisor, gave a talk called “Preparing Garden Soil on the East Side.” During this discussion Dustin…
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Flameskimmer dragonfly above bed of California golden poppies. (Photo by Kathy Keatley Garvey)
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Flameskimmers Bring Great Joy

April 16th, 2025
Bug Squad BlogBy Kathy Keatley GarveyFlameskimmers bring great joy.Today we saw our first dragonfly of the season in our Vacaville garden.  The flameskimmer, a female Libellula saturata, perched on a stick and allowed me to take a few images. It was just a couple of weeks ago that I reviewed a book…
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The buds shown on the walnut branches are male flowers called catkins
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UC scientists ask walnut trees: When do you need to be irrigated?

April 16th, 2025
By Trina Kleist
UC scientists are working with growers in Tehama, Butte, Lake, Amador, Contra Costa, Stanislaus and Yolo counties to test a new way of measuring the irrigation needs of walnut trees. Shackel and team think this new method will allow growers to use less water by not irrigating early in the season, and trees…
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Professor Fiona Goggin of the University of Arkansas
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UC Davis Doctoral Alumna to Give Lecture on 'Plant Defensive Signaling'

April 15th, 2025
 Bug Squad BlogBy Kathy Keatley GarveyUC Davis doctoral alumna Fiona Goggin, professor of entomology and plant pathology at the University of Arkansas, Fayetteville, will return to UC Davis on Monday, April 21 to deliver a lecture hosted by the UC Davis Department of Entomology and Nematology.Professor…
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Bohart Museum 75th anniversary banner
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Swing That Net!

April 14th, 2025
 Bug Squad BlogBy Kathy Keatley GarveySwing that net! Catch that butterfly!The Bohart Museum of Entomology at UC Davis encouraged people of all ages to show their skills at netting a butterfly replica on the Briggs Hall lawn last Saturday during the 111th annual campuswide UC Davis Picnic Day.The Bohart…
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Four men in weedy area. One is holding a measuring container while another sprays liquid into it from a wand attached to a backpack sprayer. A third person holds a clipboard and the furth holds a stopwatch.
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New Online Course: Calibrating Herbicide Applications for Non-Agricultural Areas

April 14th, 2025
By Cheryl A Reynolds
Calibration might sound intimidating, but it’s critical for safe and effective herbicide application. Proper calibration ensures that the correct amount of pesticide is applied to an area while achieving the desired level of pest control. To support land managers and pesticide applicators, the UC Statewide…
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A monarch flag signifies the home of the UC Davis Department of Entomology and Nematology.
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UC Davis Picnic Day: Ready, Set, Go!

April 11th, 2025
 Bug Squad BlogBy Kathy Keatley GarveyThe long-awaited UC Davis Picnic Day activities at Briggs Hall will begin at 9 a.m., Saturday, April 12 and continue until 5 p.m.It promises to be a fun-filled and educational event where roaches races, maggots crawl and the crowd cheers. And everyone learns more…
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Ranunculus flowers at The Flower Fields in Carlsbad
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Summit to showcase California agritourism best practices, May 14-15

April 11th, 2025
By Michael Hsu
The California Agritourism Summit, May 14-15 in San Diego County, will bring together agritourism stakeholders to share current initiatives and industry developments, gain practical tools to start or expand an agritourism business, develop strategic partnerships, and create a collective vision for the future…
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Lady beetle in flight. (Photo by Kathy Keatley Garvey)
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Ladybug, Ladybug, Fly Away Home!

April 10th, 2025
 Bug Squad BlogBy Kathy Keatley Garvey"Ladybug, ladybug, fly away home!"Your house is on fire and your children are gone”Who hasn’t loved that nursery rhyme about ladybugs? (Actually, ladybugs are beetles, not bugs, but that’s a different story.)At the 111th annual campuswide UC Davis Picnic Day on…
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Malaria mosquito, Anopheles stephensi, drawing blood. (Wikipedia Photo)
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Mosquito Researcher to Discuss His Work on Immune Cells

April 9th, 2025
 Bug Squad BlogBy Kathy Keatley Garvey"Mosquitoes are arguably the deadliest animal on the planet, threatening half of the world's population with the risk of mosquito-borne diseases such as malaria and dengue."So says mosquito researcher Ryan Smith, an associate professor in Iowa State University's…
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Bug Squad template. Bumble bee foraging on bull thistle. (Photo by Kathy Keatley Garvey)
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Nothing But Net--And a Butterfly

April 8th, 2025
 You may not be a proficient at netting an insect like entomologist Fran Keller, UC Davis doctoral alumna and Folsom Lake College professor is, but you can try your skills at the 111th annual UC Davis Picnic Day on Saturday, April 12 and maybe win a poster.The Bohart Museum of Entomology invites you to…
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A hand holding a couple dozen pelleted seeds
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Sowing Pelleted Seeds

April 8th, 2025
by Alison Collin Inyo-Mono Master Gardener Volunteer One of the most tedious gardening jobs at this time of year must surely be thinning seedling crops such as carrots and beetroot. If you have ever done this you must have experienced the dilemma of having a cluster of beautiful young plants that…
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Bug Squad template. Bumble bee foraging on bull thistle. (Photo by Kathy Keatley Garvey)
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Run, Roaches, Run!

April 7th, 2025
 A picnic is not a picnic without bugs.Bugs may be "univited guests" at your picnic, but at the campuswide UC Davis Picnic Day, they're celebrities.Yes, celebrities.The UC Davis Department of Entomology and Nematology (ENT) again will host its fan-favorite roach races at at Briggs Hall on Saturday,…
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Bug Squad template. Bumble bee foraging on bull thistle
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Spotlighting Bumble Bee Research in the Neal Williams' Lab

April 4th, 2025
 UC Davis bumble bee research in the news!The Ecological Society of America (ESA) recently spotlighted bumble bee research from the laboratory of pollinator ecologist Neal Williams, a professor in the UC Davis Department of Entomology and Nematology.ESA singled out “Predicting Landscape-Scale Native…
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Late Rains, Small Plants, Fast Phenology

April 4th, 2025
By Chris J McDonald
Originally Posted April 1, 2025. This year in Southern California the rainy season got off to a late start. Southern California has received about one half of the average precipitation total as of this writing (and that's not an April fool's joke). Last year we had over 50% more rainfall than the…
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Bug Squad blog template. Bumble bee foraging on bull thistle.
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When the Bond Lab Went to Salt Lake City

April 3rd, 2025
 The Jason Bond lab, UC Davis Department of Entomology and Nematology, showcased its work at the annual meeting of the Pacific Branch, Entomological Society of America  (PBESA), held this week in Salt Lake City. PBESA encompasses 11 Western states, plus parts of Canada and Mexico, and U.S…
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Bug Squad template. Bumble bee foraging on a bull thistle.
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Root for the Roaches, Cheer for the Maggots at UC Davis Picnic Day

April 2nd, 2025
 Bugs reign, especially at picnics.And especially at the campuswide UC Davis Picnic Day.What will be buzzing, racing or crawling at Briggs Hall during the 111th annual Picnic Day on Saturday, April 12?Bees, cockroaches and maggots.The UC Davis Department of Entomology and Nematology encourages you to…
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webinar video on electric weed control in organic perennial crops

April 2nd, 2025
By Bradley Hanson
A quick repost to share a link to a recent January 14, 2025 webinar on Electric Weed Control in Organic Perennial Crops. The webinar was part of a multi-state research and extension project that includes researchers from Oregon State University, Cornell University, and UC Davis and outreach support from…
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UCCE Lassen County Office

The University of California Cooperative Extension (UCCE) Office in Lassen County is located in uptown Susanville.  David Lile is the UCCE County Director and Farm Advisor.  His specialty is Natural Resources and Livestock, and he is a certified Rangeland Manager.  He consults individually with farmers and ranchers needing advice and he carries out research on local problems.

The Lassen County 4-H Youth Development Program offers many fun and educational activities for its members.  Darcy Hanson oversees this popular program which stresses citizenship, leadership, and life skills to over 200 members in our county.

Contact Information

UC Cooperative Extension - Lassen County
707 Nevada Street
Susanville, CA  96130
Phone: (530) 251-2601

Director:
David Lile

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Upcoming Events

May 3 2025

Lassen County Children's Fair

Join us for the 39th Annual Lassen County Children's Fair on May 3, 2025, from 10 AM to 3 PM at the Lassen County Fairgrounds! This FREE, family-friendly event is a wonderful opportunity to enjoy a…
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