DUSTING AND SPRAYING CURCULIO AFTER HARVEST. 
13 
for food on this plat, and as a consequence the number of beetles 
collected every other day from this plat remained about the same 
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Fig. 4.— Number of plum curculios collected on treated and untreated plats. 1922. 
throughout the experiment. (See fig. 4 for graphic comparison of 
the infestation on the four plats.) 
