66 



ASSOCIATION OF ECONOMIC ENTOMOLOGISTS. 



RESULTS IN OTHER YEARS. 



No other tests of the hite sprayings than these enumerated have 

 been made. In the other tests the number of worms left after the 

 early sprayings has not been sufficient to give accurate results, and 

 none has been applied. 



' The first test of the relative value of the early sprayings was made 

 on a single variety in 1904. The results in the first brood were good, 

 but in the second brood most of the apples on the unsprayed trees 

 and some of those on the once-sprayed trees fed more than one worm, 

 so that the number of apples saved did not show the real killing 

 power of the sprayings. 



Table XIV. — Wodjis hilled in the first brood In/ atrlii spruiiiuys, Smart d Hatch 



orchard, 1904. 



This same orchard was used for the elaborate test of 1905, the 

 result of which has been given. In 1900, although only about one tree 

 in seA^en was bearing at all and those only about half a crop, three 

 varieties were used in a third test. On account of the small number 

 of trees bearing, no unsprayed checks were left and results can only 

 be compared with those of former years.' 



Two other tests Avere made this year (1906) to see if the same 

 results could be obtained in the earlier and warmer sections of the 

 State. One test Avas made on three blocks of Ben Davis at Lehi, and 

 the other one on Iavo blocks of the same variety at Provo. 



In the case of the Lehi orchard the trees Avere young and bearing 

 only from -300 to 850 apples apiece. The unsprayed trees Avere nearly 

 one-third Avormy in the first brood, shoAving that the orchard Avould 

 have been entirely \\ormy if unsprayed; consequently there were 

 Avorms enough in both broods to give fairly accurate results. These 

 results are averaged in Tables XV and XVI. 



Table XA". — Worms Iciiled in- the prst brood hi/ enrlii sprajiiiif/s. Lehi orchard, 



1906. 



