Insects injurious to fruits . ATTACKING THE STEMS. 337 tbe centre of the stem, where they burrow up and dowD, feeding on the pith all tlirough tlie summer, enlarging the channel as they grow older, until at last they have formed a hollow several inches in length. When full grown, the larva (6, Fig. 350) is whitish and fleshy, of a cylindrical form, with brown head and legs, and a dark line along the middle of its back. Before changing to a chrysalis, a passage is eaten nearly through the stem, leaving merely the thin outer skin unbroken, thus preparing the way for the escape of the moth. Withi
Insects injurious to fruits . ATTACKING THE STEMS. 337 tbe centre of the stem, where they burrow up and dowD, feeding on the pith all tlirough tlie summer, enlarging the channel as they grow older, until at last they have formed a hollow several inches in length. When full grown, the larva (6, Fig. 350) is whitish and fleshy, of a cylindrical form, with brown head and legs, and a dark line along the middle of its back. Before changing to a chrysalis, a passage is eaten nearly through the stem, leaving merely the thin outer skin unbroken, thus preparing the way for the escape of the moth. Within this cavity the larva changes to a chrysalis (a, , where both larva and chrysalis are shown magnified).Early in June the chrysalis wriggles itself forward, and, push-ing against the thin skin covering its place of retreat, rupturesit, and then partly thrusts itself out of the opening, when ina short time the moth bursts its prison-house and escapes,soon depositing eggs, from which larvae are hatched, whichcarry on th
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Keywords: ., bookcentury1900, bookdecade1900, bookidin, booksubjectinsectpests
