18 



CIRCULAR 7 73. U. S. DEPARTMENT OF AGRICULTURE 



Plums and Prunes 



Over 12,000 carlots of plums and fresh prunes were unloaded dur- 

 ing the 7-year period. Four percent were truck shipments, chiefly 

 from New York State; 1 percent were boat shipments from Argentina 

 and Chile. Kail shipments, practically all of which originated in 

 California, Idaho, Oregon, and Washington, comprised 95 percent of 

 all unloads. 



Inspections were made on 1,974 carlots, or 17 percent of all rail 

 unloads. Distribution of decay within them was as follows: 







Carlots in indicated 







Carlots in 



indicated 





(percent) : 



decay class 



Decay class (percent) — 



decay class 



Decay class 



Number Percent 



Nu mber 



Percent 









740 37. 5 



Continued 









Trace-4_ 





1, 053 53. 3 



30-34 





5 



0. 3 



5-9 





113 5. 7 



35-39 





1 



. 1 



10-14___ 





30 1. 5 



40-44 





2 



. 1 



15-19___ 





17 .9 



45-49 













20-24___ 





7 .4 



50-54 













25-29__ _ 





5 .3 



55-59 





1 



. 1 



Decay, averaging 2.8 percent per carlot showing decay, was found 

 in 1,234 carlots, or 63 percent of those inspected. Distribution of 

 decay by types was as follows: 



Distribution Distribution 



Average 



Carlots per carlot 



Kind of decav : (number) (percent) 



Blue mold rot 700 2.5 



Rhizopus rot 842 1.5 



Gray mold rot 140 1.8 



Carlots 

 Kind of decay — Con. (number) 

 Brown rot 33 



Other decav 131 



Average 

 per carlot 

 (percent) 



1.3 

 1.3 



Table 10. — Summary of plum and prune inspections, 1935-42 



ANALYSIS BY YEAKS 





Carlots inspected 



Percent- 

 age of 

 carlots 



in- 

 spected 

 showing 

 decay 



Average decay per carlot inspected 



Year or State 



Percent- 

 age of 

 Xew 

 York 

 City 

 rail 



unloads 



Total 



Total 



of 

 decays 



Blue 

 mold 

 roti 



Rhizo- 

 pus 

 rot 2 



Gray 

 mold 

 rot 3 



Brown 



rot * 



Other 

 deeay 



1935 



Percent 

 25 

 21 

 16 

 20 

 12 

 18 

 14 

 15 



Number 

 275 

 242 

 245 

 319 

 219 

 348 

 249 

 77 



Percent 

 41 

 60 

 61 

 53 

 59 

 78 

 82 

 62 



Percent 

 1.2 

 1.5 

 1.6 

 3.0 

 2.1 

 1.9 

 1.2 

 .4 



Percent 



0.5 



.6 



.9 



1.4 



1.2 



1.1 



.6 



.1 



Percent 

 0.5 



Percent 



0.2 



Trace 



Trace 



.4 



Trace 



.1 



.1 



Trace 



Percent 

 Trace 



0.1 

 Trace 

 Trace 

 Trace 

 Trace 

 Trace 







Percent 

 Trace 



1936 





8 



8 

 9 



7 

 4 

 ? 



Trace 



1937 



Trace 



1938 



0.4 



1939 



Trace 



1940 



Trace 



1941 



.1 



1942 



.1 









Total 



17 



1.974 



63 



1.8 



.9 





.1 



Trace 



.1 











ANALYSIS BY STATES 



California 



33 

 35 



51 



480 

 762 

 484 

 224 

 24 



43 

 75 

 61 

 66 



67 



0.5 

 2.8 

 1.3 

 2.0 

 1.8 



0.1 

 1.6 

 .6 

 .9 



.7 



0.2 

 .8 



L0 

 .9 



0.1 



.2 



Trace 



.1 



_ 2 



0.1 

 Trace 

 Trace 

 Trace 







Trace 





0.2 





Trace 



Washington 



Trace 

 









Total 





1,974 



63 



1.8 



.9 



. 7 



.1 



Trace 



.1 









1 Caused by Penicillium spp. 

 ■ Caused by Rhizopus spp. 



3 Caused by Botrytis spp. 



4 Caused by yfonilinia spp. 



