Wasps completely ruined my sunny garden weekend, so I spoke to pest control experts, and they gave me 5 tips on fixing the problem
Briefly

Wasps play essential roles as pollinators in ecosystems, despite common dislike for them. Eco-friendly methods can effectively deter wasps while preserving their populations. Homemade wasp repellents can be created with water, washing up liquid, and essential oils, focusing on areas where wasps are active. Keeping garden spaces clean and free of attractive items is crucial, such as covering food, sealing rubbish, and cleaning fallen fruit to limit their attraction to outdoor areas. This approach balances the need for pest control with ecological considerations.
Using a spray bottle, mix together a solution of water, a few tablespoons of washing up liquid and a few drops of an essential oil such as peppermint, lavender or clove oil. Lightly spritz this across your garden, focusing on any established wasp nests or places you've seen them frequently.
The best remedial method of deterring wasps is to keep the space clear of things that attract them and considering bin storage and covers.
Read at Homebuilding
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