74 N.S. ENTOMOLOGICAL SOCIETY. 



All these orchards have been very badly infested for several years. 

 Since 1907, the owner of orchard No. 1 (Digby) has twice lost his entire 

 crop, while in other years the majority of it has served as hog-feed, until 

 the past two seasons, when, in 1914, we sprayed a portion of it and, in 

 1915, the whole orchard. The Gravensteins very soon became rotten 

 when sold and complaints were not long in coming in; but since his orchard 

 has been sprayed, he has sold all these apples without any ensuing trou- 

 ble. The same man owns orchard No. 4, which has gradually been grow- 

 ng worse with each year. The Gravensteins of Orchard No. 2 have 

 been allowed to rot beneath the trees for some time, since the fruit always 

 spoiled when picked, and in the owner's words : "It did not pay to bother 

 with them." The varieties mentioned in Orchards No. 4 and 5 have long 

 been infested, and in the case of the former, the insect is on the increase. 



In regard to the Windsor orchards, No. 1 and 2 had their Graven- 

 steins fully 75 per cent infested, while No. 3 was not so seriously infested. 

 The pest does not seem to have such a hold on these orchards, probably 

 due to the fact that its advent to that district is comparatively recent. 

 The Gravensteins from No. 5 of our check orchards were refused at the 

 evaporator in Windsor a year or so ago, while those of No. 4 have been 

 complained of for several years. 



Thus when comparing our results from spraying with the check 

 orchards, and with the infestation of past years, it appears that consid- 

 erable benefit has arisen from the use of the sweetened poison spray; and 

 although they cannot be taken as final after only one year's work, yet 

 they are very encouraging. 



Orchard No. 3 (Windsor) was given three applications, for as the 

 flour was not added to the spray the excessive rain washed off the spray 

 material sooner than it otherwise would, nevertheless, the results are 

 more favorable than where the flour was used, and hence this spray must 

 be tested out more fully next season, to definitely decide the value of the 

 flour. 



It has been said that the arsenical residues left on the leaves after 

 the regular orchard sprays is quite sufficient to control the apple maggot, 

 Orchard No. 2 at Digby was selected for this point. It received four re- 

 gular orchard sprays at the same time as No. 1, two pounds of lead arsen- 

 ate being used,but the special apple maggot sprays were later omitted. In 

 the fall the apples all dropped and when examined proved to be as badly 

 punctured as though the orchard had been wholly neglected. This seems 

 to indicate that the arsenical residues have very little effect in the control 

 of the insect; but another season's work must be carried through before 

 definite conclusions are given. 



