. Annual report. Entomological Society of Ontario; Insect pests; Insects -- Ontario Periodicals. ENTOMOLOGICAL SOCIETY OF ONTARIO. 27 up the trunks by means of sticky bands or funnel-shaped collars of tin. When thus stopped they often deposit their eggs below the obstruction, where they may be easily scraped off or destroyed by brushing with coal oil. When the attack is not observed until the worms are feeding, they may be sprayed with Paris green (one pound to 200 gallons of water), or may even be jarred from the trees and then destroyed. If they have been allowed to become full grown, and ha
. Annual report. Entomological Society of Ontario; Insect pests; Insects -- Ontario Periodicals. ENTOMOLOGICAL SOCIETY OF ONTARIO. 27 up the trunks by means of sticky bands or funnel-shaped collars of tin. When thus stopped they often deposit their eggs below the obstruction, where they may be easily scraped off or destroyed by brushing with coal oil. When the attack is not observed until the worms are feeding, they may be sprayed with Paris green (one pound to 200 gallons of water), or may even be jarred from the trees and then destroyed. If they have been allowed to become full grown, and have buried themselves, plowing to the depth of a few inches, late in the autumn will expose thern to the frost. The spraying of the trees when the young larvie are feeding is the most effectual means of destroying the insects. Miscellaneous ~^'Mf^\ The Tomato-worm, the large caterpillar of the Hawk-moth, Sphinx quinquemaculata, Fig. ] 5, which last year was reported in some portions of Ontario vBry destructive to both tomatoes and potatoes (Fletcher, Kept. Exp, Farms, 1892, p, 161), has not proved so troublesome this season. The decrease of this obnoxious caterpillar may be largely due to the increased abundance of the little Braconid fly, Apanteles congregatus, with the little white cocoons of which the worms may be sometimes found almost covered, as many as 200 larvte of the parasite feeding and developing in one caterpillar. The Fall-Web- worm, Ilyphanfria cuvea, Fig. 16, continues to be very abundant, and its unsightly webs disfigure a great many trees throughout the country, although there is no reason why its ravages should be permitted in gardens, orchards or lawns, where a little care in removing the colonies of young worms would soon greatly reduce the pest. In the Maritime Provinces it seems fully as common as in Ontario and is one of the most noticeable insects. The handsome " Mourning Cloak " butter- fly, Vanessa Antiopa, whose rich purple wings a
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectinsectp, bookyear1872
