NOVELTY - An insect repellent aqueous formulation comprises: a combination of at least two essential oils, citrus peel tincture, and vinegar, for application to an environmental location.    USE - In applicator (selected from pump dispenser or spray applicator for spraying) for application to an environmental location selected from outdoor location (comprising at least one of agricultural fields, landscaped areas, other types of fields and grounds, ponds, lakes, rivers and other bodies of water, outdoor holding pens or coops for livestock, poultry and other animals) or an indoor location (comprising at least one of hothouses, greenhouses, barns, chicken coops or barns and livestock pens); for insect control; and for protecting individuals from being stung by insects (all claimed).    ADVANTAGE - The combination of ingredients in the insect repellent formulation creates a substantially enhanced effect compared to that obtained by using each of the ingredients separately. The formulation uniquely combines active ingredients possessing repelling effects on insects (e.g. essential oils, vinegar) with an alcoholic extract of citrus peel which allows effective dispersion of the formulation in the air surrounding the person using the formulation, as well as stabilization. The natural insect repellent formulation is safe for human and animal use and is environmentally friendly. The formulation is a combination of at least two active ingredients, which shows a synergistic effect in terms of length of time of effectiveness in repelling insects.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparing insect repellent aqueous formulation involving: a) mixing combination of essential oils with emulsifier and citrus tincture; b) adding to the mixture obtained in (a) distilled water at a temperature of 40 degrees C and vinegar, where the final volume/volume concentration of water is 90% and the final volume/volume concentration of vinegar is 5%; c) mixing the solution obtained in (b) for 2 hours at ambient temperatures using a mechanical stirrer; and d) allowing the mixed solution to rest prior to administration.