16 THE KEPOllT OF THE No. 36 



The Four-lined Leaf Bug {Pcecilocapsus Uneatus. Fab.) was found destroy- 

 ing dahlias in July; it attacked the leaves and buds. Many of these insects, as 

 well as of the TarnisJied Plant Bug, can be destroyed by spraying the infested 

 plants with either kerosene emulsion or whale-oil soap. They can also be jarred 

 from the plants into an inverted umbrella and then put into a receptacle contain- 

 ing coal oil and water. 



The Grape-vine Leaf-hopper (Typhlocyha) occurred abundantly the past 

 season. Virginia creepers all through the city of Ottawa were severely infested, 

 and before the middle of July much of the foliage had turned whitish in places, 

 owing to the attack of the insect. 



The Destructive Pea Aphis {Nectarophora pisi, Kalt.) was again present 

 in the district, but wais not particularly injurious. Small colonies were seen on 

 field peas at the end of July, but later it was found in numbers on sweet peas in 

 gardens. In my own garden, the parasite Praon cerasapliis, Fitch, did good ser- 

 vice in reducing the numbers of the plant louse; the lady-bird beetles (Hippodamia 

 convergens, Guer., Adalia bipunctata, L., and Coccinella transversa guttata, Fab.)- 

 were also present in fair numbers, feeding upon the aphis. 



The Curled Rose Worm (Emphytus cinctipes, Fort.) was more than usually 

 abundant, and infested roses could be seen in many gardens. The larvae were 

 particularly noticed in the middle of July, when they were about full-grown and 

 when their work was easily detected. This is an extremely easy insect to control, 

 and there is no reason why beautiful rose bushes should be rendered unsightly by 

 the attacks of this false caterpillar. A weak Paris green mixture sprayed over the 

 bushes will quickly destroy all the larvae on the leaves. 



Household Insects. 



All of the worst household insects were present in Ottawa during the year. 

 Cockroaches were complained of from many sources. The Buffalo Carpet 

 Beetle was abundant in some 'houses, and caused a good deal of anxiety. Both 

 of the two common Clothes Moths were especially numerous, and much havoc 

 was wrought in houses where woollen clothing, furs, etc., had carelessly been left 

 to hang in cupboards during the summer. A few weeks ago I saw a beautiful 

 Persian lambskin coat, which had been practically destroyed by the larvae of the 

 Southern Clothes Moth (Tineola biselliella. Hum.). Although called the 

 Southern Clothes Moth, this insect, unfortunately for us, does not confine its work 

 of destruction to localities to the south of us. The Black Carpet Beetle 

 (Attagenus piceus, Oliv.), during the winter of 1909-1910, was present in destruc- 

 tive numbers. In one instance, that came under my notice, these insects did 

 serious injury. In two cupboards, the contents of which had not been examined 

 for some months, damage was done to woollen goods, and also to a beaver collar 

 of a fur-lined coat. Larvae noticed in the early part of April were from 6 to 

 10 mm. in length. 



Division No. 5, Port Hope District — F. J. A. Morris, Port Hope. 



Owing to prolonged absence I have had little opportunity of direct observations.' 

 At the end of September I interviewed a young farmer east of the town, whose 

 orchards two or three seasons ago were badly infested with the Oyster-shell Bark- 

 louse. He tells me that the pest has almost entirely disappeiared in the ndgh- 

 bour^hood; and this good result he believes is due to careful cleaning and spray- 

 ing under advice from the Agricultural Department. 



