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A female S. speciosus digging a burrow next to a driveway Eastern cicada-killer wasp holding a paralyzed cicada at John Heinz National Wildlife Refuge. Solitary wasps like the eastern cicada killer are very different in their behavior from the social wasps such as hornets, yellowjackets, or paper wasps. Cicada killer females use their stings to ...
Kent Horvath is a scientist, trying to invent a new pesticide, specifically for yellow jacket wasps. He tests its effectiveness out on eight yellow jackets, finding that it successfully kills six, but the two who survived now have extremely high pheromone levels, resulting in increased aggression. That night, the janitor accidentally releases ...
The "spray sting type", the term given to the venom-ejecting mechanism of these wasps, involves the contraction of the venom reservoir muscles. [4] This venom spraying mechanism allows for a greater release of alarm pheromone in the venom, which is key to elicit the attack behavior of yellowjackets.
Face of a southern yellowjacket (Vespula squamosa)Yellowjackets may be confused with other wasps, such as hornets and paper wasps such as Polistes dominula.A typical yellowjacket worker is about 12 mm (0.47 in) long, with alternating bands on the abdomen; the queen is larger, about 19 mm (0.75 in) long (the different patterns on their abdomens help separate various species).
Black Flag also makes a series of pesticide-free insect traps, under the "Motel" brand, including its Roach Motel, Fly Motel, and Yellow Jacket Motel. The common slogan for all of these is that the insects thus trapped "check in, but they don't check out."
“The eastern cicada-killer wasp may be the scariest-looking wasp in (Missouri),” experts said. This wasp has a ‘killer smile’ — and a Missouri wildlife biologist got a close-up look Skip ...