DIY





Yellowjackets are Beneficial Insects


| 3/6/2017 9:49:00 AM



yellow jacket

Before you go and grab a can of insecticide to kill those pesky yellow jackets have you considered the fact that they eat aphids, flies, caterpillars and grasshoppers? In many ways they are beneficial. Their omnivorous nature lends itself well to eating the soft bodied structure of the dreaded aphid for example. They also help to sanitize outdoor animal processing stations, eat rotting fruit and they help take care of carrion in general. Yellow jackets are amazing beneficial insects if you can stand them!

Yellowjacket Life Cycle 

Yellow jackets are a type of social wasp that lives in colonies. fertilized queens are the only ones that will overwinter and in late spring they emerge from hibernation and feed and build nests in order to lay their eggs. Most of the time, but not always, yellowjackets look for ground based nesting sites using plant fibers, woody or pulp like material. The queen lays eggs, the workers are born, in turn, they protect the queen and nest, they collect and bring back food for their up and coming larvae mates. The colony grows and by fall a new crop of queens and workers are born, the old breed dies and the cycle repeats.

Beneficial or Harmful?

There is no doubt that many variables must be considered that determine the difference between living in harmony with yellow jackets and wanting them to all die a quick death! If someone in the family is highly allergic to the venom and would likely endure anaphalactic shock then the answer is pretty clear. You’re probably going to get rid of them to the maximum extent possible. If you have honey bees and the yellow jackets are terrorizing and destroying hives then it’s understandable to significantly reduce their numbers. It’s a delicate balance between being a beneficial insect and the desire not to have them around. Keep in mind that pest management is a more realistic goal than pest control. In other words, if you don’t want yellow jackets around then reducing their numbers is a more realistic goal instead of “eradication.”

Create a Naturally Balanced System

On our homestead we live with yellow jackets, paper wasps and many other “pests.” Our basic strategy is to try and create a naturally balanced system where the table has not been set for any single pest or disease. In this way we hope to achieve some kind of equilibrium between beneficial and harmful insects and we set a pretty high threshold for losses. We accept that we will lose a certain amount of plants each year. We also know that in some cases the pest pressure will get high before beneficial insects are attracted to the area. Again, we accept this in order to reduce inputs and mimic nature.



Helpful Partners at a Distance 

We do not let any kind of wasp nests be built on our structures or in key, high traffic areas. In late spring we frequently inspect structures and knock down nests before they get a chance to build. We also stay on the lookout for ground nests that are in precarious areas and take care of them as soon as we find them. Other than that, we leave them alone. They are our helpful partners in controlling pests and helping to sanitize our animal processing areas. Due to the yellow jacket life cycle they are especially numerous in fall so watch out!

Stella
5/12/2018 10:45:37 AM

I know yellow jackets MAY be beneficial as the article states, however, the illustration is of a paper wasp nest. Yellow jackets are hornets, not wasps. Paper wasps are most definitely beneficial insects and I encourage their nests while trapping yellow jackets. I have observed that the wasps "shop" the plants which get bud worm infestations and I find very few to hand pick. When the yellow jackets get into the game the wasps become warriors and chase them off. I have friends and neighbors who have serious problems every year with leaf miners - I don't. The wasps eat the eggs. I am always delighted to see the wasps pulling fibers from my fence and bean arbors to build their nests. Please check your illustration and be more careful. Lots of us read your columns as the gospel..


Rattlerjake
5/11/2018 5:34:18 PM

I have a large apiary as well as poultry, livestock, and garden areas and the yellowjackets have never been a problem; except the one time, out by the road, I ran over a nest with a riding mower. When I find their nests I mark their location with a small bright orange flag so that everyone can avoid it. One time I took an old "junk" beehive hive body with a lid and set it over their entrance. It didn't take them long to start using the box (because it was covering their hole) and eventually expanded their nest into it. That winter (when all had died or left) I moved it to another location and that spring another "queen" moved in. I've done the same thing with bumblebees - sometimes they will reuse it several years. When Yellowjackets are out foraging, they are no more aggressive than honeybees.


Rattlerjake
5/11/2018 5:12:46 PM

I have a large apiary as well as poultry, livestock, and garden areas and the yellowjackets have never been a problem; except the one time, out by the road, I ran over a nest with a riding mower. When I find their nests I mark their location with a small bright orange flag so that everyone can avoid it. One time I took an old "junk" beehive hive body with a lid and set it over their entrance. It didn't take them long to start using the box (because it was covering their hole) and eventually expanded their nest into it. That winter (when all had died or left) I moved it to another location and that spring another "queen" moved in. I've done the same thing with bumblebees - sometimes they will reuse it several years. When Yellowjackets are out foraging, they are no more aggressive than honeybees.




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