. Insects attacking fruit trees [microform]. Fruit; Insect pests; Insectes nuisibles; Fruits. Green Prult-worms and their work on apples, natural size. (After Sllngerland and Crosby.) (a) Cigar Case-oearers and their work on apple leaves, (b) Pistol Case-bearer and its work on yonnc fruit, natural size. (Original.) sometimes skeletonizing the leaves or destroying all but the main veins. Apples are its favorite food plant. The life history is very similar to that of the Cigar Case-bearer. Control measures are also the same. Green Fhuit-Worms (Xylina spp). There are several species of these Frui
. Insects attacking fruit trees [microform]. Fruit; Insect pests; Insectes nuisibles; Fruits. Green Prult-worms and their work on apples, natural size. (After Sllngerland and Crosby.) (a) Cigar Case-oearers and their work on apple leaves, (b) Pistol Case-bearer and its work on yonnc fruit, natural size. (Original.) sometimes skeletonizing the leaves or destroying all but the main veins. Apples are its favorite food plant. The life history is very similar to that of the Cigar Case-bearer. Control measures are also the same. Green Fhuit-Worms (Xylina spp). There are several species of these Fruit-worms, but the larvae resemble each other closely, and are stout, pale green caterpillars, a little more than an inch long when full grown. The head is a very light shade of green, almost white, and down the middle of the back and each side is a cream-colored stripe. These characteristics, and the fact that they do not lower themselves with a silken thread, easily distinguish them from the Leaf-roller larvm. The adults are stout, greyish- brown moths, nearly related to and closely resembling the moths of Cutworms. The injury is done by the larvae. These feed on the leaves in spring until the fruit begins to form, then they attack this and eat deep holes about the thick- ness of a lead pencil into it, thus ruining the fruit and often causing it to fall. Fortunately, the larvae are very seldom abundant enough to do much harm. All kinds of orchard fruits are attacked. The larvae feed also on the foliage of many deciduous forest 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
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectinsectpests, bookyear
