A long stretch of freezing weather is the best wasp control. Many of the overwintering queens succomb to the cold, which limits the nest density the following spring.
But after a mild winter such as we had on the Pacific Northwest coast, the queens thrive in vast numbers. This is the worst year I have seen—wasps are everywhere.
At my place, the bald-faced hornets (Dolichovespula maculata) are especially bad. They cruise six inches off the ground looking for prey, three or four circle every hive, and my garden is black with them.
This time of year the hornets and yellowjackets work in different ways. The ‘jackets scour the ground under the landing board selecting dead bees to take home. But the hornets get right in the traffic flow going to and from the hive. One will shadow a bee in flight, then attack in mid-air. When it succeeds at knocking the bee to the ground, it pounces, and a fight ensues.
The combatants make a distinct buzz, and I can usually find the pair by sound alone. They spin around as they fight, each trying to sting the other. But the hornets are huge and fat compared to the honey bees. It is not a fair fight.
I’ve netted hundred of hornets this year. When I swipe at them, I usually get one hornet and a half-dozen honey bees, then I dispatch the black-and-white and release the bees. Yesterday I was amazed to see a hornet attack a honey bee while they were both in the net—a novel take on the last supper.
A few days ago I was happily netting hornets and flattening them with a stone. (They make a nice crunch, like biting into a kernel of freshly popped corn.) I didn’t realize I was being watched until my husband muttered, “Hell hath no fury like a women scorned.” Hmm. I have to say I was flattered.
Do you remember the nest of aerial yellowjackets (Dolichovespula arenaria) I photographed just after it was destroyed by an unknown assailant? I was relieved for my bees, but within two weeks that nest was completely rebuilt. I photographed the refurbished nest just in time because when I looked again, it was creamed once more—torn to shreds—with even less remaining than the first time.
The devastated nest reminded me that, while it’s not easy being a honey bee, it’s not easy being a wasp either. Churchill had a quip for that: “If you’re going through hell, keep going.”