According to Clorox, grass stains on cricket whites can be removed by presoaking the garments in warm water with a powdered laundry detergent that contains enzymes for 30 minutes. The next step is to apply concentrated bleach to the grass stain. The final step is to wash the garments in hot water or as directed on the garment label.
Grass stains can also be removed from cricket whites by pretreating the stains with bleach-based laundry detergent and allowing the liquid to set for 15 minutes before washing in hot water. Additional natural remedies that work well as a pretreatment for grass stains include rubbing alcohol, peroxide, white vinegar, banana oil, corn syrup and molasses. Fabrics that require dry cleaning should not be pretreated at home.
Grass stains are difficult to remove from whites due to the fact that grass juice contains pigmented compounds. The green chlorophyll and pigments in the grass are drawn to natural fibers like cotton and immediately bond with the fabric. Grass stains are not as severe on chemically treated fabrics, as natural grass pigment cannot penetrate the fabrics. It is important to avoid using detergents that contain ammonia, grease solvents or alkaline when treating grass stains, as these ingredients can lead to permanent setting of the stains.