962 
Journal of Agr icultural Research 
Vol. XXVIII, No. 9 
barrel with wet newspaper between each two layers of fruit; and were kept at room 
temperature of about 72° F. Examination for rot was made every three days. 
The results show some benefit from all of the chemicals; 1:5000 bichloride of 
mercury, 5 perfcent boric acid, and 5 per cent sodium bisulphite had approxi¬ 
mately the same effect; and 5 per cent sodium borate (borax) was distinctly 
Fig. 1—Percentages of blue-mold rot developing in oranges treated with various 
chemicals and those untreated during 30 days 
more effective, particularly during the first 24 days of the test. In Figure 2 are 
shown the average results of 15 tests on oranges of 5 per cent borax treatment, 
as compared with no treatment, and 5 tests on lemons. These tests were made 
at various times. In all cases the fruit was punctured at 100 points, was inoc¬ 
ulated with a suspension of blue-mold spores, and was packed between wet paper. 
The strength of the inoculum was varied in some of the tests, as was the sequence 
