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From the UC Blogosphere...

Gulf Fritillary: A Glorious Butterfly

A newly eclosed Gulf Fritillary dries its wings while a caterpillar crawls around looking for food. (Photo by Kathy Keatley Garvey)

It's commonly called a "passion butterfly," but we call it a Gulf Fritillary (Agraulis vanillaea) or Gulf Frit. Or...

A newly eclosed Gulf Fritillary dries its wings while a caterpillar crawls around looking for food. (Photo by Kathy Keatley Garvey)
A newly eclosed Gulf Fritillary dries its wings while a caterpillar crawls around looking for food. (Photo by Kathy Keatley Garvey)

A newly eclosed Gulf Fritillary dries its wings while a caterpillar crawls around looking for food. (Photo by Kathy Keatley Garvey)

This image shows a Gulf Fritillary, a chrysalis, a caterpillar and a caterpillar J'ing, about to form a chrysalis. (Photo by Kathy Keatley Garvey)
This image shows a Gulf Fritillary, a chrysalis, a caterpillar and a caterpillar J'ing, about to form a chrysalis. (Photo by Kathy Keatley Garvey)

This image shows a Gulf Fritillary, a chrysalis, a caterpillar and a caterpillar J'ing, about to form a chrysalis. (Photo by Kathy Keatley Garvey)

The silver-spangled underwings of the Gulf Fritllary--in sharp contrast to the orange-reddish wings. (Photo by Kathy Keatley Garvey)
The silver-spangled underwings of the Gulf Fritllary--in sharp contrast to the orange-reddish wings. (Photo by Kathy Keatley Garvey)

The silver-spangled underwings of the Gulf Fritllary--in sharp contrast to the orange-reddish wings. (Photo by Kathy Keatley Garvey)

The Gulf Fritillary spreads its wings. (Photo by Kathy Keatley Garvey)
The Gulf Fritillary spreads its wings. (Photo by Kathy Keatley Garvey)

The Gulf Fritillary spreads its wings. (Photo by Kathy Keatley Garvey)

Well, hello, there! Another Gulf Fritillary arrives on the scene. (Photo by Kathy Keatley Garvey)
Well, hello, there! Another Gulf Fritillary arrives on the scene. (Photo by Kathy Keatley Garvey)

Well, hello, there! Another Gulf Fritillary arrives on the scene. (Photo by Kathy Keatley Garvey)

Posted on Wednesday, October 16, 2019 at 5:00 PM

Bohart Museum Open House on Oct 19: Fright or Delight?

Bohart Museum senior museum scientist Steve Heydon with his Pteromalids or jewel wasps. (Photo by Kathy Keatley Garvey)

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...

Bohart Museum senior museum scientist Steve Heydon with his Pteromalids or jewel wasps. (Photo by Kathy Keatley Garvey)
Bohart Museum senior museum scientist Steve Heydon with his Pteromalids or jewel wasps. (Photo by Kathy Keatley Garvey)

Bohart Museum senior museum scientist Steve Heydon with his Pteromalids or jewel wasps. (Photo by Kathy Keatley Garvey)

The spotted cucumber beetle is a pest of pumpkins and other members of the cucurbits family. Here it's attacked by an assassin bug. (Photo by Kathy Keatley Garvey)
The spotted cucumber beetle is a pest of pumpkins and other members of the cucurbits family. Here it's attacked by an assassin bug. (Photo by Kathy Keatley Garvey)

The spotted cucumber beetle is a pest of pumpkins and other members of the cucurbits family. Here it's attacked by an assassin bug. (Photo by Kathy Keatley Garvey)

Posted on Tuesday, October 15, 2019 at 4:20 PM

Rebecca Irwin: Role of Floral Traits in Pollination and Bee Disease Transmission

What's in store for this honey bee? It is heading for an  Anisodontea sp.'Strybing Beauty.' Image taken in pollinator garden in Vacaville, Calif. (Photo by Kathy Keatley Garvey)

You've seen honey bees buzzing past you to reach a good nectar or pollen source. But there's much more to it than that....

What's in store for this honey bee? It is heading for an  Anisodontea sp.'Strybing Beauty.' Image taken in pollinator garden in Vacaville, Calif. (Photo by Kathy Keatley Garvey)
What's in store for this honey bee? It is heading for an Anisodontea sp.'Strybing Beauty.' Image taken in pollinator garden in Vacaville, Calif. (Photo by Kathy Keatley Garvey)

What's in store for this honey bee? It is heading for an Anisodontea sp.'Strybing Beauty.' Image taken in pollinator garden in Vacaville, Calif. (Photo by Kathy Keatley Garvey)

Posted on Monday, October 14, 2019 at 5:22 PM

Another Cockroach Moves Into the Neighborhood

Advice for Home Gardeners from the Help Desk of the 
UC Master Gardener Program of Contra Costa County

Home Gardener's Request: I found 2 of these little beetle like bugs about 1/4-inch long in our home. Are they cockroaches? I've seen them outside as well.

Help Desk Response:  Thank you for contacting the Help Desk of the UC Master Gardener Program with your pictures and I assume a request for identification.

3 line cockroach<br>about 1/4
3 line cockroach
about 1/4" long
Your pictures are those of a three line cockroach (Luridiblatta trivittata). This particular cockroach is relatively new to the SF Bay Area arriving from its native area, the Mediterranean, in 2004.

Following is a link to a UC Master Gardener Program Blog from Solano County and below that is an excerpt from the blog that explains the biology and how to manage this new pest. The comments/responses included with the original blog are of interest to as they provide comments from gardeners with this cockroach in their home and garden as well as further comments from a UC entomologist: https://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=14445

This cockroach is an outdoor species with a penchant for coming inside during drought, flooding, or to overwinter. It should be treated as a nuisance 'invader from outdoors' species, similar to Oriental cockroaches. General guidance to prevent this nuisance cockroach include:

  • prevent household invasions by properly sealing cracks and crevices, providing fine mesh screens for open windows, and installing door sweeps (this exclusion process is a bit difficult to accomplish due to the tiny size of this roach, but it should be the goal)
  • eliminate suitable habitat near structures by reducing moisture, maintaining structural perimeters (one meter from foundation) free of dense plantings and mulches, and by reducing sources of decomposing organic matter such as woodpiles and compost heaps (especially in close proximity to doors and windows)
  • this species serves as a decomposer in the garden and landscape (meaning it feeds on decaying material and typically occurs in leaf litter, plant debris, mulch, and compost piles) and is unlikely to become established within structures. At most, it might be considered a nuisance, as stated above. In many cases, no management actions whatsoever will be necessary against this insect provided you follow the general guidance above.

We hope you find this information helpful for dealing with your new neighbor. Please contact us again if you have more questions.

Help Desk of the UC Master Program of Contra Costa County


Notes: Contra Costa MG's Help Desk is available almost year-round to answer your gardening questions. Except for a few holidays (e.g., last 2 weeks December), we're open every week, Monday through Thursday for walk-ins from 9:00 am to Noon at 2380 Bisso Lane, Concord, CA 94520. We can also be reached via telephone:  (925) 608-6683, email: ccmg@ucanr.edu, or on the web at  http://ccmg.ucanr.edu/Ask_Us/MGCC Blogs can be found at http://ccmg.edu/HortCoCo/ You can also subscribe to the Biog.

Posted on Monday, October 14, 2019 at 12:10 AM

Parasitoid Palooza at Bohart Museum Open House

Just in time for Halloween! The orange and black Harlequin beetles will be displayed at the Bohart Museum of Entomology open house on Oct. 19. (Photo by Kathy Keatley Garvey)

Mark your calendars for a "parade of parasitoids!" The Bohart Museum of Entomology at the University of California, Davis,...

Just in time for Halloween! The orange and black Harlequin beetles will be displayed at the Bohart Museum of Entomology open house on Oct. 19. (Photo by Kathy Keatley Garvey)
Just in time for Halloween! The orange and black Harlequin beetles will be displayed at the Bohart Museum of Entomology open house on Oct. 19. (Photo by Kathy Keatley Garvey)

Just in time for Halloween! The orange and black Harlequin beetles will be displayed at the Bohart Museum of Entomology open house on Oct. 19. (Photo by Kathy Keatley Garvey)

Posted on Friday, October 11, 2019 at 5:00 PM

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