. Insects attacking fruit trees [microform]. Fruit; Insect pests; Insectes nuisibles; Fruits. Forest Tent-caterpillar: (o) egg mass, (b) moth, (c) vertical view of much enlarged egg, id) side view of eggs much enlarged. a and 6, Apple Tree Tent-caterpillars on their web; c, egg-cluster; d cocoon. Forest Tent-caterpillar. i ready to burst. The young larva; from caoli egg cluster remain together in a colony and soon construct a little web, increasing in size as they grow and need more room. Into this they retire at night and part of the day when not feeding. They feed upon the foliage near their
. Insects attacking fruit trees [microform]. Fruit; Insect pests; Insectes nuisibles; Fruits. Forest Tent-caterpillar: (o) egg mass, (b) moth, (c) vertical view of much enlarged egg, id) side view of eggs much enlarged. a and 6, Apple Tree Tent-caterpillars on their web; c, egg-cluster; d cocoon. Forest Tent-caterpillar. i ready to burst. The young larva; from caoli egg cluster remain together in a colony and soon construct a little web, increasing in size as they grow and need more room. Into this they retire at night and part of the day when not feeding. They feed upon the foliage near their web, gradually extending their range necessity demands. In June they become full grown and then wander in various directions from the web and often from the tree itself in search of sheltered places in which to spin their cocoons and pupate. Tito cocoons arc elliptical and made of white silken threads covered over with a yellowish powder. During the latter part of June and the first two weeks of July the adults emerge, lay their eggs on the twigs and soon die. There is only one brood each year. Many parasites and one or more destructive diseases play a very important part in the control of this pest. Birds also destroy many of them. The fact is. 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 Caesar, Lawson, 1870-1952; Ontario. Dept. of Agriculture. Toronto : Dept. of Agriculture
Size: 1903px × 1313px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectinsectpests, bookyear
