. Common injurious insects of Kansas. Insect pests. INSECTS ATTACKING LARGE FRUITS. 91 PEACH-TREE BORER. {Mgeria exitiosa Say; Order, Lepidoptera.) Diagnosis,—Attacking the peach; the tree, badly attacked, giving indications of approaching death ; at the base of the trunk,, next to the ground and just below it, and on the large roots (ex- amined by uncovering them), gummy exudations mingled with wood dust. On cutting into the root, following one of these gummy burrows, a naked, soft, pale whitish-yellow, sixteen-footed grub about one-half inch long is found. Description and Life-history:—The a
. Common injurious insects of Kansas. Insect pests. INSECTS ATTACKING LARGE FRUITS. 91 PEACH-TREE BORER. {Mgeria exitiosa Say; Order, Lepidoptera.) Diagnosis,—Attacking the peach; the tree, badly attacked, giving indications of approaching death ; at the base of the trunk,, next to the ground and just below it, and on the large roots (ex- amined by uncovering them), gummy exudations mingled with wood dust. On cutting into the root, following one of these gummy burrows, a naked, soft, pale whitish-yellow, sixteen-footed grub about one-half inch long is found. Description and Life-history:—The adult insect is a beautiful, clear-winged, day-flying moth, with glossy, steel-blue body, crossed by a broad band of orange-yellow. The wings expand about li inches. The eggs are laid on the bark of the tree, at the surface of the ground, during the sum- mer. The larvae, soon hatching, burrow in and down to the inner bark and sap-wood of the lar- ger roots, upon which 2. w they feed. Their bur- Fig. 50. Peach-tree Borer: 1, female; 2, male. I'Owillg Causes a profllSe exudation of gum, which, mixed with the wood dust, produces a noticeable mass around the roots of the tree. The larva, when full-grown, is fully half an inch long, soft, cylindrical, pale whitish-yellow, with horny, reddish head and strong, black jaws. It has eight pairs of feet, and there are a few scattered hairs on the otherwise naked body. The larva? continue feeding for nearly a year, interrupted only by the winter months. When ready to pupate, the larva crawls upward nearly to the surface of the ground and builds a tight case of silk, gum, and its own castings, within which it pupates. The pupal state lasts about three weeks. The moth then issues, and the eggs are laid. The larva enters the pupal state in south- ern Kansas in April (see D. Doyle, Report Kansas State Horti- cultural Society, 1885, p. 12), and appears as an adult (the moth) in May and Please note that these images are extracted from s
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Keywords: ., bookauthorkelloggv, bookcentury1800, bookdecade1890, bookyear1892
