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May 2025Archived
Field picture submitted by Elizabeth Fichtner

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Pallidosis disease caused by viruses transmitted by whiteflies and other sources
E-Journal of Entomology and Biologicals: Article

Increased whitefly risk to strawberries as a pest and a vector of the viral disease, pallidosis-related decline

July 9, 2013
Greenhouse whitefly (Trialeurodes vaporariorum) is the predominant species of whiteflies on strawberries in the Central Coast. What used to be a pest causing yield loss through direct damage has now emerged as a vector of a devastating viral disease called pallidosis-related decline of strawberries.
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Honey bees and a sunflower bee forage on a sunflower head. (Photo by Kathy Keatley Garvey)
Bug Squad: Article

Sunny-Side Up

July 8, 2013
By Kathy Keatley Garvey
You can tell it's summer along Yolo County roads by the acres and acres of sunflower fields. Looking like real-life Van Gogh paintings (Van Gogh painted them in vases, Mother Nature paints them in rows), the sunflower fields are nothing short of spectacular.
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UC Weed Science (weed control, management, ecology, and minutia): Article

Sampling a pond for hydrilla

July 8, 2013
By Guy Kyser
Joe DiTomaso and I are supposed to monitor the effectiveness of a hydrilla treatment in a pond near Marysville. I usually work on rangeland, where things stay put - the plants don't float away, and the equipment doesn't sink out of sight.
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S-AV-CULT-IR[1]
Topics in Subtropics: Article

Chemical Treatment to Prevent System Clogging

July 8, 2013
By Ben A Faber
Chemical treatment of water for microirrigation systems is required when the water may cause chemical precipitate or biological clogging of the microirrigation drippers or microsprinklers. The chemical treatment varies depending on the clogging source.
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UC Weed Science (weed control, management, ecology, and minutia): Article

57th Annual UC Davis Weed Day this week!

July 8, 2013
By Brad Hanson
A reminder to all who registered already that the 57th Annual UC Davis Weed Day is this Thursday (July 11th). I've attached the agenda for the morning field tour and the afternoon presentation schedule at the end of this post.
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Honey bee is covered with pollen from a blanket flower, Gaillardia. (Photo by Kathy Keatley Garvey)
Bug Squad: Article

Pollen: Precious Gold

July 5, 2013
By Kathy Keatley Garvey
The California Gold Rush (1848-1855) has nothing on honey bees. Sometimes foraging honey bees are covered with their own kind of gold--pollen--or protein for their colonies.
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hairy fleabane
Topics in Subtropics: Article

Herbicide resistant weeds in your neighborhood

July 5, 2013
By Ben A Faber
It is not always easy to kill weeds with herbicides for several reasons, but if you apply the right material at the right time to susceptible weeds you expect control. But you should never assume it, because resistant weeds rely on this assumption.
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Honey bee packing red pollen from a rock purslane. (Photo by Kathy Keatley Garvey)
Bug Squad: Article

Hurrah for the Red, White and Blue!

July 4, 2013
By Kathy Keatley Garvey
It's the Fourth of July--a time to celebrate our nation's Independence Day. Hurrah for the red, white and blue! That also covers red, white and blue pollen collected by our honey bees. If you look closely, you'll see their "patriotic" colors.
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A male cuckoo bee, Triepeolus concavus, on a blanket flower (Gaillardia). (Photo by Kathy Keatley Garvey)
Bug Squad: Article

Why This Is Bee Is Cuckoo

July 3, 2013
By Kathy Keatley Garvey
When you visit the half-acre Hagen-Dazs Honey Bee Haven, a bee friendly garden on Bee Biology Road at the University of California, Davis, you might just see a cuckoo bee.
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