1912 ENTOMOLOGICAL SOCIETY. 31 



Bush Plants and Vegetables. 



Currant Boree (Sesia tipuliformis). This borer is very abundant in many 

 currant plantations. Just how much damage it is doing is difficult to estimate. 

 The last week in June and the first in July this year adults were easily captured 

 on the foliage. The best means of control seems to be to cut out and burn the 

 old canes in early spring when pruning, and allow new canes to take their place. 

 A cane should not be allowed in badly infested plots to remain longer than two 

 or three seasons. 



Currant Saw-fly {Pteronus ribesii). This very common pest did not seem 

 to be quite so abundant at Guelph as in previous seasons. 



Currant Aphis (Myzus ribis). This aphis was much less numerous at 

 Guelph than for some years back. 



Eed Spider {Teiranychus bim.aculatus) . The Red Spider does a great deal 

 of damage to currants and raspberries, but was not so common with us as last 

 year. We have got good results from the use of lime-sulphur against it. 



Raspberry Root-borer {Bembecia marginata) . At Grimsby, August 8th, 

 while examining raspberry roots with the object of discovering the cause of a 

 peculiar curling of the leaves which has been quite common in the district and 



Fig. 20. Red-necked Agrilus — 

 a, horns at anal extremity; 

 &, grub; c, beetle — all magni- 

 fied. 



has preceded the death of the plant, I found that nearly two-thirds of all the roots 

 examined had been injured by this borer. It does not seem to have been the cause 

 of the curling, at any rate in some cases, but was evidently very injurious to the 

 plants. At this date most of the insects were still in the larval stage, but a few 

 had pupated. ISTo adults were yet visible. Such a plantation should clearly be 

 ploughed up either early in spring or late in fall and the roots and canes collected 

 and burned. 



Red-necked Agrilus or Gouty Gall Insect {Agrilus ruficoUis). I have 

 seldom seen many canes attacked by this beetle, but this year, at Port Dalhousie, 

 it was very common on red raspberries. The part of the cane above the gall had 

 in most cases died, just as happens when they are attacked by the Snowy Tree- 

 cricket (Oecanthus nigricornis) . 



Blackberry Leaf-miner {Metallus, sp.). This sawfly miner is still quite 

 abundant in at least the Niagara district. 



European Fruit Scale (New York Plum Scale) {Lecanium corni— 

 Eulecanium cerasifex). Blackberry canes were very badly attacked in a few dis- 

 tricts by this scale. Thinking that posisibly it might not be Eulecanium cerasifex 

 I sent it to Washington, and was informed it was the same insect, but that the 

 name Lecanium corni, Bouche, was given to it now. This scale a few years ago 



