Show careless washing spreads disease when spray residue Is not removed from fruit storage rots result prepared by the united states department of AtrI agriculture cultura washing fruit to remove spray residue Is another of the newer practices which add to the market value of the product when thi the job Is properly done but when carelessly done washing may be the means of spreading storage rots according to the united states department of agriculture washing proves value for the past two years the washing treatment has been used commercially and has proved its value says D F fisher of the bureau of plant industry of the department who Is conducting investigations in this phase of fruit handling comprehensive studies and surveys covering important shipping points and all the larger marketing centers 1 b he Q ddlan ta aut autt haxe sho wa 66 conclusively ne fus ave ly ril that abboth both in tto storage afe and d on the market washed fruit holds up as well or better than that which la Is unwashed and in addition it usually offers a more nt attractive appearance the principal hazard in washing apples aside from increases in rots due to punctures resulting from extra handling Is caused by soluble arsenic derived from the spray residue itself this injury Is usually localized at the blossom end says mr fisher for this reason lie says varieties characterized by a large proportion of open calyx tubes such as jonathan stayman winesap spitzenburg and sometimes Del delicious lelous should be sprayed rather than immersed in the cleaning solution other varieties such as rome beauty winesap ben bea davis arkansas black and yellow newtown may be immersed without danger of starting core rots change washing solution the department recommends that the washing solution be changed after about BOO bushels of apples or the equivalent in other fruits has been treated in each gallons ot of chemical solvent it also advises that rott fruit be dried as quickly ns as possible alter after the washing |