My backyard is infested with these wasps. Each year more and more. I have had a pest control company for 2 years and they could not eliminate them – any suggestions what I can use? Thank you.
First you need to read through our CICADA KILLER ARTICLE. This will explain all you need to know about this pest. Our article also goes over several treatment options. My favorite is the DRIONE DUST which will kill them on contact. If you can see their nests clearly and aren’t afraid to approach them so you can dust them in the evening, this option will provide the fastest results with most dying overnight.
Alternatively you can spray the CYPERMETHRIN over the infested areas and drench their nests directly which will yield positive results. The only drawback of spraying is that it can take a few treatments to knock them down significantly compared to the Drione that will work instantly.
Cicada Killers: http://www.bugspray.com/articles99/cicadakillers.html