The fine nose of the wasps
Wasps have a very fine sense of smell. And they also need this with the amount of special food that they have to dig up for themselves and their offspring every day. Their menu does not only include clearly smelling sweet jams, fallen fruit or grilled steaks, but primarily fine, fragrant flower nectar, honeydew and insects.
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Most home remedies for wasps also target their sensitive sense of smell. Plants such as basil, lavender and lemon verbena, citronella or clove oil are said to form odor barriers that repel the biting insects. It has also been proven experimentally that these smells are unpleasant to wasps.
Coffee aroma is too roasted wasps
Wasps also find the roasted aroma of coffee powder unattractive. In order to rub it under their noses, it is not enough to simply sprinkle it on or to put a pot of freshly brewed coffee on the table. For the odor barrier to work, the powder must be lit. The following things must be observed so that you do not suffer any damage:
- Use a very (!) Fire-resistant container, preferably made of metal
- Place on a non-flammable surface
- If possible, place it so that it cannot tip over and is out of the reach of children
- Trying out whether the smell doesn't bother you yourself
If you stick a match in a pile of coffee powder, it starts to smolder. This creates a lot of heat, which ceramic ashtrays cannot withstand in the long term. So that the container does not fly around your ears while you are drinking coffee, you should use a metal container if possible. It is best to place it on a rechaud, a stone coaster or on a wall next to the terrace.
Apart from the coffee aroma that is released when the powder burns up, the smoke that arises also drives the wasps away. However, not everyone likes the developing, smoky smell. So test out whether you can put up with it when you eat.
In general, experts advise not to rely solely on odor barriers when driving wasps away but above all to prevent the food's lure by covering it up too much reach.
