. Cutworms and their control [microform]. Vers gris; Cutworms; Insect pests; Insectes nuisibles. 8 INTRODUCTION. Cutworms cause more widespread injuries an<l are responsible for more mquiries on the part of farmers, market gardeners and others who cultivate the soil, than most classes of injurious insects. Taking them as a class, they rank Vi "?P"'^'?"'"^ '^'th such well-known pests as the San Jose Scale, the Codling Moth, and the Hessian-flyâall of which are among our most destructive insect enemies. There are certainly few insects which, year after year, do such wide-
. Cutworms and their control [microform]. Vers gris; Cutworms; Insect pests; Insectes nuisibles. 8 INTRODUCTION. Cutworms cause more widespread injuries an<l are responsible for more mquiries on the part of farmers, market gardeners and others who cultivate the soil, than most classes of injurious insects. Taking them as a class, they rank Vi "?P"'^'?"'"^ '^'th such well-known pests as the San Jose Scale, the Codling Moth, and the Hessian-flyâall of which are among our most destructive insect enemies. There are certainly few insects which, year after year, do such wide- spread damage to garden and field crops as the various caterpillars known commonly as cutworms. The annual loss occasioned by these insects in Canada amounts to hundre<ls of thousands of dollars. In one vear (1900), the Variegated Cutworm alone destroyed in British Columbia crops to the value of $168,000, and, if we add the losses in the same in Manitoba and Ontario, the figures would easily reach $200,000. Chittenden has estimated that the total damage caused by this cutworm in the above year in the United States and Canada amounted to the enormous sum of $2,500, ^'°'Mf^' ?*^nth'Jpirwâ¢.''*'*r-''J**''""'"'n"'^"'" ".'â «"«.⢠f>. moth of Clover Cutworm, Mamesira TVT T^f â¢''*'*^ °^ ^^^^^ cutworms belong to the family Noctuidse, of which in Worth America there are over two thousand different kinds. In Canada, fortu- nately, not more than about twenty-five of these have ever appeared in numbers as cutworms, to do serious damage to growing plants. The moths in general are similar m appearance, being of a grayish or dull-brownish colour, the front pair of wings being usually crossed with four or five irregular lines. On each of these wings, also, are two characteristic marks, the one nearest the body, about halfway down the wing, being round or orbicular in shape and the other, nearer the tip of the wing
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectinsectp, bookyear1915
