62 



ASSOCIATION OF ECONOMIC ENTOMOLOGISTS. 



There Avere no sound apples on either set at i)icking time. The 8 

 sound api^les on the sprayed trees were windfalls. In fact there were 

 very few apples left at picking- time. The only difference that could 

 be noted was that the apples from the unsprayed trees had 1 calyx 

 worm each and 3 or 4 on the sides, while the sprayed ones were also 

 all calyx wonny, but had an average of only about 1 on the side. 



The second test was on unsprayed checks in the twice-sprayed 

 Smart & Hatch orchards. These trees were nearly one-third wormy 

 in the first brood, but about two-thirds of these worms were caught 

 under bands, and the resulting moths from the remaining worms 

 Avould, of course, spread out over the sprayed trees, so that there 

 would be many less worms in the second brood than if the orchard 

 had been unsprayed. On two varieties many of the apples on the un- 

 sprayed checks had more than one Avorm, and the results in sound 

 apples are again too low to show the real killing poAver of this late 

 spray. They gave aA^erages as folloAvs: 



Tablk A'III. — RcxiiHk (if llircc laic .-iiu-aiiiiHjs alone in hadly infested blocks in 

 Sniart it Hatch o}-char(ls, 190 Jf. 



Unsprayed checks . . 

 Late sprayed checks. 



Wormy 

 apples. 



562 

 375 



Sound 

 apples. 



252 

 519 



Many of the sound apples on the unsprayed trees Avere Avindfalls 

 and most of the rest Avere beloAv and inside. The outer and upper 

 apples Avere badly infested. 



On the third variety there Avere apples enough for the Avorms and 

 to spare, and these results should shoAv the full killing poAver of the 

 sprayings Avhen applied alone. 



Table IX. — Results of tlirec lale sinni/inns alone in niodcratelj/ infested blocks 

 in Xniart d- Hatcli orchard. ti>i)',. 



llnrprayed checks .. 

 Late sprayed checks 



Worms killed . 

 Percentage killed . . . 



Total 



number 



of wormy 



apples. 



712 

 193 



Number 



of apples 



with 



calyx 



wormy. 



487 

 120 



Number 

 of apples 

 with side 

 wormv. 



519 

 73 



367 

 75 



225 

 73 



152 

 68 



Percent- 

 age of 

 sound ap- 

 ples. 



That the sound apples in Tables VIII and IX must be credited to 

 the fact that the early tAvo si)rayings reduced the number of Avorms in 

 the orchard, is evident on comparison with the first table, where there 

 were no early sprayings. There Avas nearly the same number of 



