20 THE KEPUirr OF THE No. 36 



beetle in considerable numbers at Outremont, Que. One of our correspondents 

 (K'ev. Bro. Ouellette), sent to us leaves of horse radish which had been riddled by 

 the beetles. When first discovered no less than 150 specimens were captured by 

 shaking some leaves over a beating net. 



Attacking Fhuit and Forest Trees. 



The Eed-humped Apple-tree Caterpillar_, Schizura concinna A. & S., was- 

 more than usually abundant in some orchards in 1917. 



The Cherry Slug^ Eriocam'poides limacina Ketz., was also present in notice- 

 able numbers. 



The Eye-spotted Bud-moth, Tmetocera ocellana Schiff., caused important 

 injury in certain unsprayed orchards. 



The Halisidota Tussock Caterpillars, namely, the Hickory "Halisidota, 

 11. car 1/(8 Harr., the Spotted Halisidota,, II. maculata Harr., and the Checkered 

 Halisidota, //. iessellaris A. & S., were remarkably abundant throughout the 

 Ottawa district. The previous outbreak of these caterpillars was in 1907. During 

 ^the past season they occurred on apple, elm, basswood, maple, birch, and other 

 trees. Conspicuous injury to the foliage of apple by the Hickory Halisidota was 

 observed on August 8th. During the latter half of August and the first half of 

 September the three different Halisidotas were conspicuous almost everywhere in 

 the neighborhood. Around summer cottages they were a decided nuisance from 

 their habit of dropping on people, crawling about verandahs, etc. 



Garden and Greenhouse Insects. 



In flower gardens, in addition to cutworms, which were more or less in evi- 

 dence, the Four-lined Leaf Bug, Pcecilocapsus lineatus Fab., rendered unsightly 

 the foliage of asters, dahlias, zinnias, etc. The Burdock Borer, Papaipema 

 caiaphrada Grt., was present in more than usual numbers and destroyed many 

 choice delphinium, dahlia and other plants with succulent stems. The Bordered 

 Sallow, Pyrrliia umhra Hufn., was again noticed to be destroying the buds of roses 

 at Ottawa. On July 21st young larvae about one-quarter inch in length were found. 



The above species of woolly-bear caterpillars {Biacrisia virginica Fab. and 

 Estigmene acrcea Dru.) Avere very numerous in flower gardens. Both of these 

 caterpillars are, in general, of similar appearance and habits and feed on a great 

 variety of plants. 



There were no special outbreaks of greenhouse insects during the year. 

 Eegularly-occurring species such as the various common aphids, scale insects, etc.» 

 required constant attention. In the control of soft scales on ferns we have had 

 satisfactory results by sj^aying rather heavily with three ounces of Sunlight soap 

 to each gallon of water. Several applications, a week apart, were necessary. 



Division No. 3, Toronto District — A. Cosens. 



Although the average temperature in this district, during July and August, 

 was lower than usual, yet the climatic conditions, in some way not easily explained, 

 have proven favorable to the production of certain forms of insect life as several 

 species were exceedingly abundant. 



Especially is this true concerning the Lepidoptera; it has certainly been an 

 ideal season for the development of caterpillars. 



