. Annual report - Entomological Society of Ontario. Entomological Society of Ontario; Insect pests; Insects. 47 tion, whether by general encouragement of insectivora in the fields, or the more limited application available in the ; 8. The Pear-Tree Slug Worm (Selandria cerasi) is'a very familiar insect in Canada, (fig. 28); though I cannot say that our species is identical with .that found in England, Eriocampa adumbrata, it is at any rate very. similar to it, both in appearance and habits, district round Dalkeith. tf The easily applied remedies of a In 1878 this insect did much da
. Annual report - Entomological Society of Ontario. Entomological Society of Ontario; Insect pests; Insects. 47 tion, whether by general encouragement of insectivora in the fields, or the more limited application available in the ; 8. The Pear-Tree Slug Worm (Selandria cerasi) is'a very familiar insect in Canada, (fig. 28); though I cannot say that our species is identical with .that found in England, Eriocampa adumbrata, it is at any rate very. similar to it, both in appearance and habits, district round Dalkeith. tf The easily applied remedies of a In 1878 this insect did much damage in the dusting of caustic lime, or a heavy syringing of the tree with strong soapsuds, are generally very effective in getting rid of this ; A full account of this insect is given by Mr. Saunders in our Report for 1874. 9. The Gooseberry or Currant Saw-fly (Nematus ribesii), our well-known pest (fig. 29), is recorded as being very prevalent, both in 1878 and 1879. In this country we are able to keep it in check by the use of powdered white hellebore, and I have never heard of any ill effects being produced by the employment of this poison. A writer, however, relates that on one occasion " I dusted my bushes with white powdered hellebore, and ten days after (being dry weather from the time they were , / V \ dusted) a tart was prepared of berries from these bushes. £ V After partaking of the tart we all got seriously ill, but recovered, and next day we were all right. Since that period I never again made use of hellebore for destroy- ing caterpillars on berry bushes. The remedy I have used ever since instead of hellebore, with equal success, is flour of sulphur. It is easily applied by dusting it over the bushes with a pepperbox while they are under the morning dew ; or, if during dry weather, the bushes ought to be watered and then dusted. It is only necessary to dust the lower part of the bushes if taken in time. The use of sulphur is perfectly safe, and be
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