Nectarine stains can be fairly easy to remove, if handled promptly. While you can purchase stain removal products that remove fruit and other similar stains, these can be high-priced items that you may not have when you need them. Instead, use a few common household ingredients to effectively handle the stain.
Blotting the stain is one of the most important steps to stain removal. Scoop away as much of the nectarine as possible with a spoon or knife, then blot with a clean napkin to absorb any stain that has not set into the fabric. Launder as usual on a cold water cycle using your usual laundry detergent, which will most times remove the stain completely, requiring no additional effort. Do not use hot water or the dryer until the stain is fully removed, as heat can set in any remaining stain permanently.
Dish detergent is also designed to break up food particles and debris, so it works for nectarine stains. Place a few drops of your normal liquid dish detergent onto the stain and rub it in to break up the stain. Repeat as necessary until the stain is fully removed, then launder as usual in a cold water cycle.
Vinegar is another household product that will effectively break up fruit stains. Douse the area with distilled white vinegar (no apple cider vinegar, as this will stain the area brown), then blot until the stain is fully removed. Launder as usual, using a cold water wash.
If none of the above-mentioned treatments have removed the stain, soak the area with isopropyl rubbing alcohol. This will break up any remaining stain, leaving the area clean and disinfected. Launder as usual to remove any remaining debris, using a cold water wash cycle.