UC Master Gardener Program
UC Master Gardener Program
UC Master Gardener Program
University of California
UC Master Gardener Program

Posts Tagged: monarch butterflies

How Many Overwintering Monarchs in California?

Monarch butterfly feeding on milkweed. (Photo by Kathy Keatley Garvey)

There's good news and not-so-good news about the Western Monarch Thanksgiving Count in California. Last December the Xerces Society for Invertebrate Conservation released preliminary figures. Now they've announced the final tally: almost 272,000...

Monarch butterfly feeding on milkweed. (Photo by Kathy Keatley Garvey)
Monarch butterfly feeding on milkweed. (Photo by Kathy Keatley Garvey)

Monarch butterfly feeding on milkweed. (Photo by Kathy Keatley Garvey)

Monarch and a honey bee sharing a Mexican sunflower, Tithonia. (Photo by Kathy Keatley Garvey)
Monarch and a honey bee sharing a Mexican sunflower, Tithonia. (Photo by Kathy Keatley Garvey)

Monarch and a honey bee sharing a Mexican sunflower, Tithonia. (Photo by Kathy Keatley Garvey)

A male monarch on a Mexican sunflower, Tithonia. (Photo by Kathy Keatley Garvey)
A male monarch on a Mexican sunflower, Tithonia. (Photo by Kathy Keatley Garvey)

A male monarch on a Mexican sunflower, Tithonia. (Photo by Kathy Keatley Garvey)

Posted on Thursday, February 11, 2016 at 5:52 PM

Surprising Results in Monarch Study

Overwintering monarchs at the  Coronado Butterfly Preserve in Ellwood, Calif. (Photo by Louie Yang)

You can't really say that "monarch butterflies are back in the news again,"  because they've never really left. Thankfully! The more we know about monarch butterflies, the better we can understand them and help conserve them. Newly published...

Overwintering monarchs at the  Coronado Butterfly Preserve in Ellwood, Calif. (Photo by Louie Yang)
Overwintering monarchs at the Coronado Butterfly Preserve in Ellwood, Calif. (Photo by Louie Yang)

Overwintering monarchs at the Coronado Butterfly Preserve in Ellwood, Calif. (Photo by Louie Yang)

Male monarch butterfly. Image taken in Vacaville, Calif.(Photo by Kathy Keatley Garvey)
Male monarch butterfly. Image taken in Vacaville, Calif.(Photo by Kathy Keatley Garvey)

Male monarch butterfly. Image taken in Vacaville, Calif.(Photo by Kathy Keatley Garvey)

Female monarch butterfly. Image taken in Vacaville, Calif. (Photo by Kathy Keatley Garvey)
Female monarch butterfly. Image taken in Vacaville, Calif. (Photo by Kathy Keatley Garvey)

Female monarch butterfly. Image taken in Vacaville, Calif. (Photo by Kathy Keatley Garvey)

Posted on Tuesday, January 26, 2016 at 11:29 AM

Ready for Parasitoid Palooza II? Bohart Museum Open House on Sunday, Jan. 10

A wasp  parasitizing aphids. These wasps are from the family Aphidiinae. (Photo by Fran Keller)

If you've ever tried to rear monarch butterflies, you may have encountered a caterpillar parasitized by a tachinid fly, which oviposits or injects its eggs into it. The fly's life cycle continues, but the host dies.  The tachinid fly is a...

A wasp  parasitizing aphids. These wasps are from the family Aphidiinae. (Photo by Fran Keller)
A wasp parasitizing aphids. These wasps are from the family Aphidiinae. (Photo by Fran Keller)

A wasp parasitizing aphids. These wasps are from the family Aphidiinae. (Photo by Fran Keller)

Posted on Tuesday, January 5, 2016 at 1:48 PM

Saving the Monarchs: Saving the Sacred Trees

A monarch butterfly nectaring on its host plant, milkweed, in Vacavile, Calif. Monarchs west of the Rockies overwinter along the California coast, and monarchs east of the Rockers overwinter in central Mexico. (Photo by Kathy Keatley Garvey)

We can help save the monarch butterflies by saving the "sacred" trees in central Mexico where most of the migrating population overwinters. Science journalist Janet Marinelli, writing in Yalee360,  said it well in her Dec. 21st piece, "To...

A monarch butterfly nectaring on its host plant, milkweed, in Vacavile, Calif. Monarchs west of the Rockies overwinter along the California coast, and monarchs east of the Rockers overwinter in central Mexico. (Photo by Kathy Keatley Garvey)
A monarch butterfly nectaring on its host plant, milkweed, in Vacavile, Calif. Monarchs west of the Rockies overwinter along the California coast, and monarchs east of the Rockers overwinter in central Mexico. (Photo by Kathy Keatley Garvey)

A monarch butterfly nectaring on its host plant, milkweed, in Vacavile, Calif. Monarchs west of the Rockies overwinter along the California coast, and monarchs east of the Rockers overwinter in central Mexico. (Photo by Kathy Keatley Garvey)

Posted on Wednesday, December 23, 2015 at 3:37 PM

Tiny/Tim Not Long for This World

Tiny and Tim on a replica of a penny-farthing. (Photo by Kathy Keatley Garvey)

It was bound to happen. Not all monarch butterflies that you rear will make it. Such was this case this week with when two monarchs eclosed, both crippled and struggling to survive.  The damage to their crumbled wings may have occurred when,...

Tiny and Tim on a replica of a penny-farthing. (Photo by Kathy Keatley Garvey)
Tiny and Tim on a replica of a penny-farthing. (Photo by Kathy Keatley Garvey)

Tiny and Tim on a replica of a penny-farthing. (Photo by Kathy Keatley Garvey)

Tim catches some rays. (Photo by Kathy Keatley Garvey)
Tim catches some rays. (Photo by Kathy Keatley Garvey)

Tim catches some rays. (Photo by Kathy Keatley Garvey)

Posted on Thursday, December 17, 2015 at 5:48 PM

Next 5 stories | Last story

Webmaster Email: mgwomack@ucanr.edu