she's suited up, ready to treat this yellowjacket ground nest. >> it was a pretty active nest. they were starting to let us know they didn't really want us around their nest. >> reporter: contra costa county vector control district has seen an 83% increase in calls from homeowners requesting service for yellow jackets. stay away from any ground nests. >> don't try to treat it yourself. they get more upset and aggressive once they have been treated with spray or soapy water concoction. >> reporter: the heavy winter rains and hot summer created just the landscape to draw more yellowjackets. >> unlike a honey bee that will lose its stinger and be done, they can sting you over and over. >> reporter: the insects are showing up in record numbers. as the months get colder, they will die off. right now they are in full swing. >>> all right. lot more to come. lyft tries to play catch up. they plan to launch self-driving cars on bay area roads as other companies step on the gas on their autonomous vehicles. >>> not just people are getting out of florida. so are their pets. they are getti