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Weidhaas reports wasps are unable to see in the dark and make every effort to be home before dark. Hence, the time to erradicate them is after dark. Control can be had by thoroughly soaking the nests with a solution of carbaryl, sold as Sevin. Weidhaas advises, “It is best applied with a back-pack sprayer with a long nozzle. This will permit the sprayer to stand away from the nest and to insert the spray nozzle into the nest door for direct contact with the wasps.”
“Chlordane or malathion may also be used for spraying wasps’ nests,” said Weidhaas.
A difficult part of the control program is finding the nest. Weidhaas finds them by watching wasps at dusk. “That is when they are flying home,” he said.
The life habits of wasps are such that nest destruction is easiest when attempted early in the insect’s year. In the fall, fertile males and their queens leave the nest to mate. The males then die.
The queen goes into hibernation until springtime when she emerges to search for a suitable nesting area. She then collects wood or vegetation which she chews into a paper-mache like substance to use in building a comb with egg cells and lays one egg in each cell.
Wasp larvae depend upon adults
92.9%