. Injurious insects : how to recognize and control them . Insect pests; Insect pests. STAXWORMS EAriX(f TlIK LEAVES 281 When full ji'ro«n, the worms enter the ground, and remain tliere until tlie following; spring. The adults eonie out se^•eral weeks before the aiijile is due to blossom. The female is wingless, erawls up the trunk, and lays her eggs. The male is winged. The eggs hatch after the ajiple leaves have unfolded. Spraying with arsenicals, using rather hea\-y dosage, wiU kill the worms. Instead of this the trees may be banded six weeks before the apples are due to bloom, so as to ])re
. Injurious insects : how to recognize and control them . Insect pests; Insect pests. STAXWORMS EAriX(f TlIK LEAVES 281 When full ji'ro«n, the worms enter the ground, and remain tliere until tlie following; spring. The adults eonie out se^•eral weeks before the aiijile is due to blossom. The female is wingless, erawls up the trunk, and lays her eggs. The male is winged. The eggs hatch after the ajiple leaves have unfolded. Spraying with arsenicals, using rather hea\-y dosage, wiU kill the worms. Instead of this the trees may be banded six weeks before the apples are due to bloom, so as to ])re^•ent the females or the worms from reaeliing the upper parts of the tree. Orehards that are regu- larly sprayed with poisons, such as arse- nate of lead or Paris green, will not suffer from tliis pest. The Fall Canker-worm (Ahophila pomctaria Harr.) This species is quite similar in characteris- tics to the spring can- ker-worm. The lar^-a may reachly be recog- nized from the fact that it has two pairs of prolcgs near the hind euii of the body just forward of the claspers located on the extreme hind end. Fig. 407 whereas the spring canker-worm has only one pair. The injury wrought by the two species is identical. Either w-ill strip the foliage from apple trees in early spring, when -The Fall Canker-worm, larged. Original. Slightl\- en-. 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 O'Kane, Walter Collins, b. 1877. New York : The Macmillan Company
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectinsectp, bookyear1912
