To keep gnats away effectively, consider the following methods: Natural Repellents and Scents
Gnats dislike certain scents which can be used to repel them naturally: vinegar (especially apple cider vinegar), vanilla, pine oil, peppermint, lemon, eucalyptus, lavender, and garlic. Using these as oils, sprays, candles, or placing dryer sheets can help keep gnats at bay

. Traps
Homemade traps using apple cider vinegar mixed with sugar and dish soap attract gnats but kill them on contact. Another option is a red wine trap covered with plastic wrap with holes poked in it to trap gnats inside. Store- bought sticky traps with sweet scents are also effective

. Environmental Control

• Remove or reduce sources that attract gnats such as overwatered plants, damp soil, decaying fruits, and spoiled food.
• Dispose of garbage regularly and keep garbage cans covered.
• Eliminate standing water, fix leaks, and ensure proper drainage to reduce moist breeding grounds.
• Clean gutters and drains regularly to prevent gnat breeding sites

Biological Control
Applying Bacillus thuringiensis var. israelensis (Bti), a natural larvicide, to soil or standing water can kill gnat larvae without harming humans or pets

. Additional Tips

• Wearing protective clothing and eyewear can help outdoors.
• Using fans to create airflow can deter gnats as they are weak fliers

By combining these approaches-repelling with scents, trapping, removing breeding grounds, and using biological controls-you can keep gnats away effectively and prevent infestations