. Insect pests of farm, garden and orchard . —Work of the squash lady-bird—greatly reduced. (After W,E. Britton.) The Squash-vine Borer * In many localities the most serious pest of squash is theSquash-vine Borer, and although other cucurbs are sometimesinjured, they are relatively free from attack if squash or pumpkinsare pres(Mit. The larva; bore in the stems, causing them to rot * Melittia sntyriniformis Hbn. Family Scsiidoe. See Circular 3S Bureauof Entomology, U. S. Dept. Agr. 394 INSECT PESTS OF FARM, GARDEN AND ORCHARD where affected, so that they break off and the plant wilts and dies.
. Insect pests of farm, garden and orchard . —Work of the squash lady-bird—greatly reduced. (After W,E. Britton.) The Squash-vine Borer * In many localities the most serious pest of squash is theSquash-vine Borer, and although other cucurbs are sometimesinjured, they are relatively free from attack if squash or pumpkinsare pres(Mit. The larva; bore in the stems, causing them to rot * Melittia sntyriniformis Hbn. Family Scsiidoe. See Circular 3S Bureauof Entomology, U. S. Dept. Agr. 394 INSECT PESTS OF FARM, GARDEN AND ORCHARD where affected, so that they break off and the plant wilts and presence of the borer is indicated by the coarse yellowishexcrement which it forces from its burrow and which is foundon the ground beneath, and by the sudden wilting of the is most severe at the base of the vine, which graduallydecays, so that it is severed and the whole plant dies. A half-dozen or more larvse are often found in a single stem, and as manyas forty have been taken from one vine, the larvse attacking all. Fig. 285.—The squash-vine borer (MeliUia satyrinijorniis Hbn.): a, malemoth; h, female with folded at rest; c, eggs shown on bit of stem;d, full-grown larva in vine; e, pupa; /, pupal cell—all one-third largerthan natural size. (After Chittenden, \]. S. Dept. Agr.) parts of the vine and even the petioles and large ribs of theleaves when abundant. Injury is worst on Hubbard, marrow,cymlings and late varieties of squash. The adult is one of the clear-winged moths with a wing expanseof about 1\ inches, the fore-wings being opaque, dark olive-green in color, with a metallic lustre and a fringe of brownishblack. The hind-wings arc transparent, with a bluish reflection,and the veins and marginal fringe black. The abdomen is markedwith orange, or red, black arid bronze, and the legs are brightorange, with tarsi black with white bands. The species occursthroughout the States east of the Rockies and southward intoCentral and South .\meric
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyo, bookyear1915
