1911 ENTOMOLOGICAL SOCIETY. 23 



Mr. Caesar: I have seen some orchards where Spies nearly all fell two or 

 three weeks prematurely. 



Dr. Hewitt: I could give you a practical illustration in regard to control 

 by destruction of the fruit. One of the most serious places for the Apple Maggot 

 has been in the orchards around Como, in Quebec, and Mr. Shepherd told me that 

 he had cleared them out of his own orchard by destroying the fallen fruit. 



Mr. Stvaine : That case is the standard one quoted for the Apple Maggot all 

 over the northern part of Eastern United States. 



Mr. Caesar: I was aware of Mr. Shepherd's experience, and was much in- 

 terested in it. 



Mr. Swaine: He was particularly careful in his work. 



Apiiids of the Orchard. 



These insects were not nearly so abundant this year as last, and only in a few 

 cases were there any complaints of damage. Our most common species of green 

 apple aphis is evidently Aphis avence. Fab. In a few orchards specimens of a rosy 

 aj^liip, probably Ayliis pyri, Boyer, were seen. On the sweet cherry the Black 

 Aphis {Myzus cerasi. Fab.) was fairly abundant in the early part of the season, 

 and caused considerable loss. 



The Woolly Aphis (Schizoneura lanigera) was rather more abundant than 

 usual. So far as I know tliis pest does not attack the roots to any appreciable ex- 

 tent. On the branches it can easily be destroyed by a spray of kerosene emulsion 

 forcibly applied. 



Mr. Caesar: Have you got the Eosy Apple Aphis at Montreal, Mr. Swaine? 



Mr. Sttaine : It is fairly abundant this fall. 



Dr. Hewitt: Aphis sorbi is quite abundant in the West. 



J\lR. Caesar: What is your common green aphis on the apple? 



Mr. Swaine: Aphis pomi (DeGeer). 



Oyster-shell Scale (Lepidosaphes ulmi). This pest is rapidly being 

 brought into subjection in all the best apple districts by the use of the lime-sulphur 

 wash. This spray is rapidly displacing all others for this purpose, and wherever 

 it is continued year after year it completely frees the orchard from the scale. 



San Jose Scale {Aspidioius perniciosus) . Though specimens of San .Tos6 

 Scale have been sent in this year from Northumberland County and last year from 

 Prince Edward County, it is still doubtful whether it is capable of establisliing 

 itself firmly in these colder districts. Lime-sulphur is the standard remedy. 



Blister Mite (Eriophyes pyri). This mite is now to be found in almost 

 every district in the Province, although many orchards here and there are still 

 exempt. It may prove a blessing in disguise, as it will in many cases force the 

 farmer to spray his trees rather than let them look so unsightly and be so greatly 

 injured. Lime-sulphur applied just as the buds are bursting has given very satis- 

 factory results both last year and this. 



Mr. Jarvis: Do you think it has spread so rapidly, or are people just open- 

 ing their eyes and noticing it? 



Mr. Caesar: In my brother's orchard there were only two pear trees, on 

 which this had evidently been brought in. Those two trees two years ago were com- 

 pletely infested. To-day almost every tree in the whole orchard is attacked. 



Mr. Jarvis: Five or six years ago I found it nearly everyvehere in the Pro- 

 vince. 



Mb. Caesar: The fruit-growers tell me that in orchards where they are not 

 spraying with lime-sulphur it has been spreading very rapidly. It certainly is all 



