May 31,1924 
963 
Borax Treatment of Citrus Fruits 
of puncturing, inoculating, and treating with borax. The method of applying 
the 5 per cent borax solution was either by dipping the fruit momentarily in the 
solution, or by soaking for 1 minute or for 10 minutes, or by atomizing over the 
fruit, or by applying with a brush; all of these methods proved effective. The 
averages are based on 491 treated and an equal number of untreated fruit for 
Fig. 2.—Percentages of blue-mold rot developing in oranges and in lemons 
treated with 5 per cent borax solution and untreated during 27 and 21 
days 
the oranges, and on 270 fruits for the lemons. They show the effectiveness 
of the treatment under conditions of infection far more severe than would occur 
in even the worst commercial practice. The treatment with 5 per cent borax 
solution resulted under these exceedingly severe conditions in a distinct reduction 
in blue-mold rot, but did not give what would be considered satisfactory control. 
The treatment seemed to be more effective on oranges than on lemons. 
