42 



THE REPORT ( »F THE 



No. 19 



The Datana, which did so much injury to Black Walnut and Hickory trees last year, 

 appeared again this season, but in very much smaller numbers, wnd the damnge was very light. 



The Bufialo Carpet Beetle 



(Fig. 31) has become a serious 



pest in this district, and causes 



great loss in carpets and ether 



woiillen articles. To give an ide.i 



of how plentiful they are, [ ma} 



mention that on one bush of 



Spimea in 5 days I collected 



over 100 beetles. 



. Buffalo Beetle, a, larva (destructive stage) ; b, pujta within larval 

 skin ; c, pupa ; d, beetle — all much magnified. 



Fig. 32. Asparagus Beetle, larva and eggs. 



In the discussion which followed the reading of the~ Directors' reports. Prof. Lochhead 

 remarked upon the progress of the Asparagus beetles. Crioceris 12-pvbnctata (Fig. 30) had 

 taken the lead of the other species, G. asparagi (Fig. 32), in their westward movement, while 



in the neighboring States the opposite was the case. 

 Last year they had reached Guelph, the former species 

 being much the more abundant, and now it alone had 

 arrived at London. Dr. Fletcher stated that in the 

 Niagara District both species were equally abundant, 

 and he thought it remarkable that the 12-spotted 

 beetle should have moved faster than the other. The 

 asparagus rust he found very injurious last year at 

 Ottawa, but this year there was very li'.tle of it. Mr. 

 Balkwill had observed the same thing in gardens in 

 London, where much injury had been caused by rust 

 last year it was not noticeable this summer ; he also stated that the Codling Moth was very 

 little in evidence in this neighborhood. Mr. Fisher asked how it was that the Codling Moth 

 was so rare in the District referred to. Mr. Balkwill said that he could not account for it, as 

 the owners of orchards had done no spraying. Mr. Fisher thought that the diminution in the 

 numbers of the insect must have been caused by the small crop of fruit last year, which 

 deprived it of a sufficient supply of food, and therefore prevented a large nnraber of the worms 

 from attaining their maturity. He then asked what steps should be taken to control the 

 Asparagus beetles. In reply it was stated that good results ha<i followed from dusting the 

 plants regularly with fresh lime when the larvje were upon them. 



Dr. Fletcher, in reference to the Codling Worm (Fig. 33) urged very strongly the import- 

 ance of spraying during such a year as this, when their numbers were fewer than usual. We 

 now had the enemy at its weakest, and could without much difficulty reduce its numbers to 

 such an extent that it would take some time to become abundant again. Furthermore, good 

 fruit brings a high price ; it pays well, therefore, to persevere in spraying. He considered that 

 the reduction in the numbers of the insect was due to the cold, wet season, the small food sup- 

 ply and the extended use of spraying throughout the country. Among the enemies to this fruit, 

 he mentioned the Apple-Weevil (Anthoyiomns quadrigibbi(s). Fig. 34, which he had found also 

 in wild haws, and the Plum Curculio, which often attacks apples. 



Mr. Fisher spoke of the best means of controlling the Codling moth ; he considered the 

 bandage system the most effective of all, but the bandages must be removed at least every ten 

 days and the bark beneath them scraped. If this is not done, the bandage proves the most 



