48 



DECIDUOUS FRUIT IXSECTS AXD INSECTICIDES. 



Table XLYII. — Sound and uormy fruit from 10 trees of Plat VIII, sprayed May 2, being 

 second application as given Plat /, pear orchard of the Mrs. Fanny W. Bancroft Or- 

 chard Co., 1910. 





Number of vindfallen 

 pears. 



Number of pears from 

 trees. 



Total number. 



Per cent- 



Tree Xo. 



























Total. 



Wormy. 



Sound. 



Total. 



Wormy. 



Sound. 



Total. 



Wormy. 



Sound. 



Wormy. 



Sound. 



1 



6 



1 



z. 



P.l 



19 



42 



67 



20 



47 



29.84 



70.16 



2 



oo 



31 



22 



149 



70 



79 



202 



101 



101 



50.00 



50.00 



3 



33 



10 



23 



203 



42 



161 



236 



52 



184 



22.03 



77.97 



4 



44 



29 



15 



324 



116 



208 



368 



145 



223 



39.40 



60. 60 



5 



54 



21 



33 



100 



29 



71 



154 



50 



104 



32.47 



67.53 



6 



140 



82 



58 



624 



119 



505 



764 



201 



563 



26. 31 



73. 69 



7 



33 

 36 



70 

 45 



20 

 19 

 28 

 19 



13 

 17 

 42 

 2G 



168 



15S 

 302 

 208 



53 

 39 



64 

 46 



115 

 119 

 23S 

 162 



201 

 194 

 372 

 253 



73 

 58 

 92 

 65 



128 

 136 

 280 

 183 



36.32 

 29.90 

 24.73 

 25. 69 



63.68 



8 



70. 10 



Q 



75. 27 



10 



74. 31 



Total, trees 

























1-10 



514 



260 



254 



2.297 



597 



1.700 



2.. 811 



857 



1.954 



30. 49 



69.51 



The fruit from the unsprayed block Plat VI (Table XLY) was 

 93.90 per cent wormy, while that from the demonstration block, 

 Plat I (Table XL), sprayed three times, w T as only 4.03 per cent 

 wormy, showing a gam of 89.87 per cent sound fruit for the three 

 sprayings. Plat II (Table XLI), sprayed twice, both times for the 

 first-brood worms, showed 10.69 per cent wormy, representing a gain 

 in sound fruit of 83.21 per cent for two sprayings put on in time to 

 catch the first-brood worms. Plat III (Table XLII), which was also 

 sprayed twice, these being the first and last applications as given 

 Plat I, the accessory treatment for the first brood being omitted, 

 showed 20.43 per cent wormy fruit, showing a gain of 73.47 per cent 

 sound fruit for the two sprayings. This gain, however, is 10.74 per cent 

 less than was the case where both sprayings were put on in time for 

 the first-brood worms. Plat IV (Table XLIII) received the second 

 and third applications as given Plat I, the first spraying being omitted. 

 The results showed 22.51 per cent of the fruit to be wormy, which is 

 a gain of 70.39 per cent over the check plat, but is 11.82 per cent 

 less than the gam on Plat II, where the two applications were put on 

 early. The other plats, which received only one application, ran too 

 high in wormy fruit to be considered at all from a commercial viewpoint. 

 Thus, Plat VII (Table XL VI), which received only the first applica- 

 tion, showed 32.57 per cent wormy and 67.43 per cent sound,, while 

 Plat VIII (Table XL VII), which received only the second application, 

 had 30.49 per cent wormy and 69.51 per cent sound. Plat V (Table 

 XLIV), which received only the last application, was little better 

 than the check, having 87.90 per cent of the fruit wormy and only 

 12.10 per cent sound. 



