34 THE EEPOET OF THE No. 36 



I have known of its being so fax north. Two or three years ago, while on Insti- 

 tute work, a few farmers near Welland told me it had done some damage to their 

 timothy. This year it has been reported from several parts of the province. 



FOEEST. 



Chalepus rubra (?). While camping on the Eideau lakes the last week in 

 July my attention was attracted by the appearance of the foliage on the basswood 

 trees (Tilia americana). On several of these the leaves were nearly all dead, 

 having been almost skeletonized by the adults of this beetle. They were still pre- 

 sent and were so sluggish that I could have gathered thousands of them without 

 a net. 



Popi.AE Borer (Saperda calcarata). In the same district the poplars 

 (Populus tremuloides) were severely attacked by the larva? of this very large 

 Cerambycid. At that date some of the larvas were apparently full grown, but had 

 not yet pupated; others were only about half the size of these. The largest were 

 right in the pith of the tree and liad made large and long tunnels from where 

 they had entered. Many larvae were only half-grown. 



Birch Bucoulatrix (Bucculatrix canadensisella) . On the college campus 

 and in the neighbouring woods this tiny insect was very abundant on birch foliage. 



Chermes similis. So far as I can see, almost all these insects have perished 

 this year on the White Spruce trees at Guelph, although very abundant and de- 

 structive last year and fairly abundant this spring. I have no clue to the cause. 

 Chermes ahietis has not been attacked to the same extent if at all. 



Dr. Hewitt: I should be glad if Mr. Caesar would tell us more about his 

 work on the insects of this year. 



Mr. C^sar: I might say that, so far as the Codling Moth is concerned, I am 

 more firmly convinced than ever that the recommendations we have been maldng 

 for a very careful and even a drenching spray after most of the blossoms have 

 fallen is the right way to treat this insect. Here are two illustrations of what can 

 be done by such a spray. Mr. Jas. E. Johnson, of Norfolk County, has a large 40 

 acre orchard of trees about 40 years of age. Norfolk is one of the warmest counties 

 in Ontario, and there is a lot of injury done there by the second brood of Codling 

 Moth. Many unsprayed orchards will have as high as 80 per cent, of wormy 

 apples. Mr. Johnson has set to work to free his orchard of the Codling Moth by 

 a single thorough spraying immediately after the blossoms drop. He has two 

 gasoline power outfits. So well has he' succeeded that this fall he had, when I 

 visited the orchard at packing time, considerably less than 1 per cent, of wormy 

 apples ; in fact, you could visit tree after tree without seeing a single wormy apple 

 either on the tree or on the ground. He used lime-sulphur and arsenate of lead. 

 Some of you will be surprised when I tell you that he applied as high as 10 gallons 

 to a single tree that had had plenty of bloom. 



Dr. Hewitt : Does not a single, very thorough application appear to be giving 

 quite as good results as several lighter ones, and be at the same time more 

 economical ? 



Mr. C^sar: I certainly think so, though until the Codling Moths, in warm 

 districts, are brought thoroughly under control I recommend a second application 

 about three weeks or a little more after the blossoms fall. This is merely to make 

 thorough work of the first brood. It is about this time that the worms are really 

 beginning to enter the apples in anything like large numbers. 



