Before you take steps to get rid of yellowjackets around your house or yard, be sure the problem is yellowjackets! Less aggressive flying insects, such as paper wasps, mud daubers, and honeybees, are often mistaken for yellowjackets.
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If you often find several yellowjackets in your home, you may have a nest inside your walls. To protect yourself and your family from getting stung, call your local vector control district or a pest control company for help getting rid of the nest. Look for a pest control company that specializes in less-toxic pest control methods.
The half-filled glasses were there to draw the yellowjackets away from the picnic tables. Don't know what was in the plastic glasses, but whatever it was, it did not kill them. It just slowed them down. A little. They jumped in, swam around, and climbed out.
"In fall, foraging yellowjackets are primarily scavengers, and they start to show up at picnics and barbecues, around garbage cans, at dishes of dog or cat food placed outside, and where ripe or overripe fruit are accessible. At certain times and places, the number of scavenger wasps can be quite large."
"Usually stinging behavior is encountered at nesting sites, but sometimes scavenging yellowjackets will sting if someone tries to swat them away from a potential food source. When scavenging at picnics or other outdoor meals, wasps will crawl into soda cans and can sting your lips or the inside of your mouth or throat."
Honey bees and yellowjackets belong to the same order, Hymenoptera, but different families. The honey bee (Apis mellifera) is in the Apidae family, while the yellowjacket, Vespula pensylvanica, belongs to the family, Vespidae.
When beekeepers open the hives at the adjacent Laidlaw facility, trouble can start between the honey bees and the yellowjackets. It's no secret that female yellowjackets establish their nests near apiaries to prey upon honey bees and their brood. They need the protein for their offspring.
"It was around a decade ago that we lost the use of flowable microencapsulated diazinon (Knox Out 2FM^ ) as a yellowjacket bait poison," Mussen said in a message he also shared today with the UC Davis Department of Entomology. "As long as the wasps did not taste it, they would take the contaminated bait back to the nests and share it with their brood and other adults. It was amazing! Often in 48 hours the colonies were out of business and the area was clear of yellowjackets."
"You can find this product on the web as Alpine Yellowjacket Bait Station Kit. A multi-year supply (one pint) of microencapsulated esfenvalerate and four bait stations--they look like over-sized, plastic prescription bottles with a hole in the side and a string for hanging--will cost about $85 before shipping. Sounds like a lot of money for a small amount of product, but if you need to clear out the yellowjackets in a hurry--wedding reception, fair, outdoor barbecue, your own peace of mind-- this is a good investment."
Now yellowjackets--they're predators. They love meats and sweets. You'll see these uninvited guests at your picnic or barbecue, boldly sampling your steak, hamburger or chicken; targeting your can of soda; or scavenging in and around your garbage can.
Mussen noted that beekeepers inadvertently kill a few bees each time they open a hive and pry open the "stuck-together" frames with their hive tool. The dead bees fall to the ground--to the waiting yellowjackets. The yellowjackets then carry the bees off to their nest, chew them into pulp, and feed the "protein" to their brood. 2ff7e9595c
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