16 THE REPORT OF THE No. 1& 



Dr. Felt : I see no reason why the application would not be just as 

 successful. In the case of the San Jose scale we do not hesitate to recommend 

 the use of the lime-sulphur in the fall; I think the same would be true in the 

 ease of mites, but I would much prefer to advise putting it on in the spring. 

 If the operations are delayed a little the biids will be slightly opened and 

 you will secure greater results in that way. The material retains more or 

 less its caustic value for a considerable period and the wash will, therefore, 

 prove destructive to any mites which it reaches. 



The Lesser Apple Worm (Enarmonia prunivora). 



Mr. Jarvis : There is considerable interest being taken in the so-called 

 work of the Lesser Apple Worm this season and I shall ask Mr. Caesar to 

 introduce the subject. 



Mr. Caesar exhibited a number of apples that had recently been sent 

 to him from Prince Edward county and from St. Catharines. The senders 

 believed that the injuries were due to some new worm. Mr. Caesar said that 

 all he knew about this pest was what Professor Quaintanoe had described in 

 his bulletin on the subject but that he was very anxious to get any information 

 that any of the entomologists present could give him. He felt that the 

 injuries on some five or six apples which he picked out corresponded very 

 closely with Prof. Quaintance's descriptions and illustrations. On showing 

 these to Dr. Felt the latter agreed with him that they were probably due to 

 the Lesser Apple Worm. The other injuries Dr. Felt and others thought 

 were not caused by this insect. Mr. Caesar said that if the first class of 

 injury pointed out was due to the Lesser Apple Worm, it would appear that 

 this insect was to be found throughout a large proportion of the best orchards 

 of the province but that it was satisfactory to find that nowhere was it 

 abundant. It was not an entirely new pest because Dr. Fletcher had 

 reported its presence at Toronto, Prince Edward county and Ottawa several 

 years ago. It is also very widely spread throughout British Columbia but 

 Mr. Palmer, one of the Agricultural College students and a son of the Mr. 

 Palmer who has furnished Dr. Fletcher with reports of its progress in the 

 West, states that it is not increasing rapidly in British Columbia. 



The life-history of the insect is very similar to that of the Codling Worm 

 but, unlike the latter, instead of boring a hole into the core of the apple it 

 lives near the surface^ often causing ugly blotched mines either on the side 

 or at the calyx end. These blotches are often as large as a ten cent piece, 

 or even larger, and disfigure the apple greatly. It is believed that the spray- 

 ing that controls the Codling Worm will also control the Lesser Apple 

 Worm, 



Prof. LocHHEAD : I have not observed its work at all in the Montreal 

 district. The only reference to it I have had came from Kingston, so I have 

 have had no experience in dealing with it. I do not think it has been reported 

 from Quebec province. 



Mr. Jarvis : It is so much like the Codling Worm that we may easily 

 pass it by and not recognize it. 



Dr. Felt : I wish to say that I have had no experience with the Lesser 

 Apple Worm. We know, however, that the Codling Worm goes deeper into 

 the apple, so it appears as though the apples exhibited may in some cases 

 have been attacked by this less common pest. The only way, I think, that 

 we can be absolutely certain about it is to find some of the larvae at work. 

 Although the larva of this insect is very like that of the Codling Moth, 

 yet on careful comparison you can see a difference, particularly, if I remem- 

 ber correctly, at the posterior extremity. 



