Rangelands

Where are all the monarch butterflies? There's good news and bad news. First, the bad news: "An Epic Migration on the Verge of Collapse," wrote the Xerces Society for Invertebrate Conservation on its website detailing monarch conservation.

Today is Labor Day 2019, a federal holiday celebrated the first Monday of September. However, "the girls" are working, as they do every day of the year, weather permitting. "The girls" are the worker honey bees. Unless you keep bees or have access to a hive, you mostly see them foraging.

The date is set. The celebration of life for global bee expert Robbin Thorp, distinguished emeritus professor of entomology at UC Davis and a beloved scientist, is scheduled for Friday, Oct. 11 from 6 to 8 p.m. in the Putah Creek Lodge.

If you've been finding more milkweed bugs than monarchs on your milkweed, join the crowd. Monarchs are scarce--at least around Solano and Yolo counties--but milkweed bugs are quite plentiful.

If you're a beekeeper or plan to be a beekeeper, you're aware of Public Enemy No. 1. That would be the varroa mite, Varroa destructor, an eight-legged external parasite that attacks and feeds on honey bees. Those mites can spread viruses and decimate a healthy colony.

They came to learn about honey bees, how to become a beekeeper, and how to plan for their first hive.

Love is in the air. Or, more specifically, in the snapdragons. If you maintain a pollinator garden, you've probably seen female European wool carder bees (Anthidium manicatum) nectaring on flowers or scraping or carding fuzz for their nests.

If you're a beekeeper, you not only keep bees in your hive, but unfortunately, varroa mites. This major pest of honey bees is considered Public Enemy No. 1 in the beekeeping world.

Californians love their oak trees. During vineyard development, Central Coast grape growers often feel compelled to leave an old iconic oak standing, even if it ends up right in the middle of their vineyard.

Landscape trees provide welcome shade, fruit, homes for wildlife, and even a place for kids to climb. But if the wood is damaged, disease-causing fungi can infect the tree. A number of fungal diseases decay wood in both tree branches and trunks, weakening and sometimes killing the tree.