1910.] PUBLIC DOCUMENT — No. 31. 73 



REPORT OF THE ENT0:M0L0GISTS. 



C. H. FERNALD ; II. T. FERNALD ; J. N. SUMMERS. 



The work of the department of entomology during the year 

 1909 has differed little from that of preceding years. Corre- 

 spondence, as usual, has required much time, and many inquiries 

 involve consideraljle investigation where some of the less fa- 

 miliar insects are concerned. This has been particularly true 

 during the past season, the number of insects concerned having 

 been larger than usual, though serious injury from their attacks 

 has been rather conspicuously absent. 



Experimental work in some subjects has been continued from 

 previous years, while in others it has been temporarily sus- 

 pended. The construction of the new entomological building has 

 necessitated giving up the use of the present greenhouse, as this 

 was liable to removal to its new site at any time, and when this 

 should occur any experiments under glass would necessarily 

 come to an end. For this reason further tests of the resistance 

 of muskmelons to fumigation have been discontinued for the 

 present, but it should be possible to resume them another year. 

 Studies on the number and relative importance of the different 

 broods of the codling moth have been continued, but the orchard 

 in which these have been made thus far has now been taken for 

 other uses, and has been so treated that it is no longer available 

 for this purpose. Unless another orchard, under conditions 

 suitable for the work, can be obtained, this line of investigation 

 will, therefore, have to be dropped, although in order to reach 

 satisfactory resulls it should be continued for at least four or 

 five years more. 



Experiments on methods for the control of the cabbage maggot 

 have been repeated again, l>iit without satisfactory results, the 

 maggots, though more abundant than during the two years pre- 



