it must be spring, just killed 4 huge aggressive black wasp in the bedroom...try not to miss them because they have a memory and will come after you at a later time
When you described them as HUGE the Cicada Killers came to mind, but when you said inordinately AGGRESSIVE I thought HORNETS!
They're INfamously Aggressive...and I've picnic-ed with enough of to be familiar with their memory!Once you tick-'em off fagedaboudit! ...and some exude a pheromone that causes others in their hive to come to their defense.
You also mentioned OTHER "RED" Ones, which brought to mind the Giant European Red Hornets that aren't all that aggressive... however... you also said "NEW Ones" There is a new Invasive Species of Giant European Hornets NEW to the Americas.
If the infestation continues, HAVE THE INSECTS PROPERLY IDENTIFIED** and if they're Hornets, SEEK A PROFESSIONAL!
Jim is correct.. now's the right time of year to deal with them... The Danger is that if they're nesting in your house, their numbers can multiple QUICKLY...like their close relatives, the Yellow Jackets their Sister Wasps in the hive care for and feed a brood of young that develop quickly as they enlarge the nest and rear yet more young ...all the while aggressively defending the nest and each other. Contact your nearest USDA Extension Office they will instruct you How-To send a Sample for Proper Identification and Recommendation on what you need to deal with an infestation: Missouri Co-Operative Extension Offices
IT'S A FREE SERVICE! We sit around all day waiting to help people!
Cicada killers look like big mean wasps BUT they really won't bother you unless you corner them or try to pick them up... they are NOT very aggressive like Yellow jackets and hornets. Same with tarantula wasps... BIG and look like they'd sting the crap out of you, but if you ignore them they won't bother you.... BOTH have subterranean nests so hard to find and they are solitary... unlike Yellow jackets and hornets where there could be 100s !!
Amazing they found this one !
There is a great sequence of a tarantula wasp and tarantula fighting in the end of Disney's The Living Desert... super video for it's day !! (1953)
Wasps, like Spiders, are considered "Beneficial" in that in their natural habitat & in our Garden, they're invaluable for keeping the PEST species populations under control, and therefore shouldn't be killed out-of-hand.
Actually I looked all over the place for a nest several times and even put bug bombs up there. However, there is lots of space and little hiding places I could not see. It is an old farmhouse. At least is only a few and does not seem to be an infestation.
Bug bombs work okay when they are active, they'll carry the poison into the nest, but don't penetrate the nest very well when they are hibernating.
A flashlight, a cold Saturday afternoon, and a can of Raid to soak the nest.
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