. Common insects affecting fruit-trees [microform]. Insect pests; Fruits; Insectes nuisibles; Fruit. Fig 13. Moth of the Red-humped Fig. 14. The Red-humped Caterpillar. Caterpillar. The Spring Cankervvorm {Paleacrita vernata) and The Fall Can- KERWORM (Anisopteryx pometaria), Fig. 15. These two species resemble each other so much that they may be considered together. The moths of tht; former come out during the first warm days in spring; those of the latter late in the autumn, sometimes after the first snow has fallen. In both the females are wingless, and therefore they do not spread from one
. Common insects affecting fruit-trees [microform]. Insect pests; Fruits; Insectes nuisibles; Fruit. Fig 13. Moth of the Red-humped Fig. 14. The Red-humped Caterpillar. Caterpillar. The Spring Cankervvorm {Paleacrita vernata) and The Fall Can- KERWORM (Anisopteryx pometaria), Fig. 15. These two species resemble each other so much that they may be considered together. The moths of tht; former come out during the first warm days in spring; those of the latter late in the autumn, sometimes after the first snow has fallen. In both the females are wingless, and therefore they do not spread from one orchard to another with much rapidity. Usually their arrival may be traced to some nearby forest tree, as they are very general Fig. 15. Canker-worm; a, eggs, natural size; b, magnified; c, caterpillar; d, cocoon; «, chrysalis; /, male moth; g, female moth. The eggs are laid in masses upon the twigs of the trees and the young worms hatch out as soon as the opening buds begin to unfold their leaves. They are slender pale green measuring-worms, so called from their method of crawling by alternately looping up and extending the body; this process is rendered necessary owing to the absence of pro-legs under the middle segments. (Fig. 15, c.) Feeding as they do upon the tender young foliage, they are capable of inflicting great damage both to. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bethune, Charles J. S. (Charles James Stewart), 1838-1932; Jarvis, Tennyson D; Ontario. Dept. of Agriculture. Toronto : Dept. of Agriculture
Size: 3084px × 810px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauth, bookcentury1900, bookdecade1900, booksubjectinsectpests
