When using a homemade wasp killer that requires no insecticides, it is important to remember to exercise caution when spraying the substance on a nest, wear the proper clothing, make sure the area is free of passersby and contact a professional if there is any uncertainty about executing the action. Items needed are a hose, a hose-end sprayer, dishwashing liquid and suitable clothing, including head protection and gloves. The process of preparing the solution and using it takes about an hour,Continue Reading
To prepare the solution, pour at least 1/4 cup of dishwashing liquid into the hose-end sprayer, attach the sprayer to the hose and get the water going until suds begin to form. The soapy water drowns the wasps if sprayed with enough force into the nest in a manner that water on its own cannot. Wasps' exoskeletons prevent water from entering their bodies, but the soap breaks down the surface tension of water enough so that it ultimately drowns the wasps in the nest.
The evening is the best time to spray the nest, anytime after dusk when all the wasps have come home, and there is relatively little activity.
Maintain a safe enough distance while remaining close enough to flood the nest with a powerful spray of soapy water. Make sure that there are no obstacles in your escape route if necessary. If there are any concerns about doing this on your own, consult a professional.
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