Springtime is here and summer is just around the corner. Although we are welcoming warmer weather and sunshine, there are always some unwelcome guests this time of year.

Global honeybee populations have been declining for many years, due to disease, loss of habitat and poor beekeeping practices. A newly approved vaccine helps fight American Foulbrood disease.

The University of Georgia’s College of Agricultural and Environmental Sciences has partnered with Dalan Animal Health to advance the world’s first honeybee vaccine.

Environmental writer Oliver Milman says habitat loss, pesticides and climate change are killing off insects worldwide, which, in turn, threatens humans. His new book is The Insect Crisis.

The U.N. has designated May 20 as the day to celebrate these famous pollinators. "There are 20,000 species of bees around the world and a lot of these bees are in decline," says bee expert Hien Ngo.

In a move to eliminate murder hornets in North America, the Washington State Department of Agriculture is utilizing a new technique to catch them. In July, trappers found their first one.