A rare San Francisco leaf-cutter bee has been spotted in Marin County, California — the first sighting of the insect since 1980, the Sacramento Bee reported. A conservation group called Tamalpais Bee ...

A rare, elusive bee that is endemic to the Bay Area has turned up on Mount Tamalpais in its first documented sighting in nearly 45 years. The San Francisco leaf-cutter bee, also known as Trachusa ...

Pollination, the transfer of pollen from male to female parts of the same or a different flower, is necessary to produce ...

A leaf-cutter bee carries a piece of a leaf it's cut to build a nest cell for its offspring. Utah State University scientist Joseph Wilson says the bees may be using plastic waste in place of natural ...

Question: My azaleas suddenly started losing their leaves. I saw some small, green things that look like caterpillars on the branches, but after spraying them with Bacillus thuringiensis, they are ...