24 THE REPORT OF THE No. 36 



Chp:kky Fkuit Elies {Uluujoletis cingulata and fuusla). In the Biirlingtou 

 and Niagara Districts, the crop in some unsprayed orchards of Montmorency and 

 Morello cherries was a complete loss becanse of the large percentage of wormy 

 fruit. 



The severe losses caused by the fruit flies last year induced nearly all the 

 larger growers to spray this season. No sweetening was used, and in many cases 

 a fungicide was added to the poison without detriment to the efficiency of the 

 treatment. 



A braconid parasite, Opiiis ferniginea Gahan,* was found in fairly large 

 numbers ovipositing in maggot-infested fruit in an orchard near Jordan, and 

 in another orchard at Burlington. The same species was bred from wormy cherries 

 in late August and early September. 



Bud Moth {Tmefocera ocellana). East of Toronto and in parts of Western 

 Ontario, the bud moth was very prevalent this spring. 



Lesser Apple Leaf-roller {Alceris minuta). In Septem]jer, a farmer of 

 Bruce County wrote for information about a caterpillar that folded apple leaves 

 over and fastened the edges together. Specimens were asked for but when he 

 went to gather them on October 29th, he found the larva had deserted the leaves. 

 This fact and the description given of the caterpillar and its work indicate almost 

 without doubt that the species was Alceris minuta. The farmer stated that almost 

 every leaf in the orchard was folded. The Lesser Apple Leaf Roller is not 

 common in Ontario. 



The Red-humped Apple Worm {Schizura concinna), the Yellow-necked 

 Apple Caterpillar {Daiana ministra), and the Fall Webworm {Hypliantria 

 cunea) were prevalent in the Niagara and Burlington districts. 



The Pear Thrips {Taeniothrips inconsequens) . This species, hitherto un- 

 recorded in Ontario, was taken on pear trees last spring in a large orchard near 

 Beamsville. Fortunately, the thrips was present in very small numbers and 

 apparently was not causing any appreciable injury. 



It is highly probable that this insect has been present in the Niagara district 

 for a number of years and has not been observed heretofore simply because it 

 has never assumed economic importance. 



Insects Injurious to Small Fruits. 



Blackberry Leaf-miner (Metallus hethunei or M. riihi). This miner, 

 though very abundant last year, was even more abundant this year. Practically 

 every leaf in several plantations had from one to fifty mines, and nearly all the 

 older and lower leaves died and fell off in late July and early August. These 

 were replaced by new foliage which in turn became mined in September. All 

 efforts to control the insect failed. In experiments conducted at Burlington 

 large numbers of adults were poisoned by spraying the leaves with sweetened 

 arsenate of lead. It was found, however, that to be effective the spray would 

 have to be applied daily for almost a month because the adults continued to 

 emerge for about that long, and they were found to feed only upon the mixture 

 before it dried, paying no attention to it after this. 



In experiments with contact insecticides the sawflies were easily hit but 

 even when drenched with kerosene emulsion, usual summer strength, or witli 

 whale oil soap 1 lb. to 4 gals., they recovered as soon as dry and were quite 

 uninjured. 



*Species determined iby Mr. A. B. Gahan. U. S. Bureau of Entomology. 



