. The encyclopedia of practical horticulture; a reference system of commercial horticulture, covering the practical and scientific phases of horticulture, with special reference to fruits and vegetables;. Gardening; Fruit-culture; Vegetable gardening. GRAPE PESTS 1129 California Grape Root Worm *Adoxus obscurus Linn. Family Chrysoinelidae General Appearance The adult beetles are about three-six- teenths of an inch long, jet black in color and partially covered with fine whitish hairs giving them a grayish cast. The prothorax is noticeably narrower than the rest of the body. The antennae and le
. The encyclopedia of practical horticulture; a reference system of commercial horticulture, covering the practical and scientific phases of horticulture, with special reference to fruits and vegetables;. Gardening; Fruit-culture; Vegetable gardening. GRAPE PESTS 1129 California Grape Root Worm *Adoxus obscurus Linn. Family Chrysoinelidae General Appearance The adult beetles are about three-six- teenths of an inch long, jet black in color and partially covered with fine whitish hairs giving them a grayish cast. The prothorax is noticeably narrower than the rest of the body. The antennae and legs are usually black, but are some- times brown. The eggs are elongated, yellowish-white and one-twenty-fifth of an inch long. The full-grown larvae are white with brown heads and about one- fourth of an inch long. The heads are usually curved in towards the ventral surface of the body. The pupae are white and about the same size as the fully de- veloped larvae. Life History The eggs are laid early in the spring, usually in clusters of from one to two dozen, in cracks or crevices beneath the bark upon the trunk of the vines, any- where within six inches above the sur- face of the ground. They hatch in from eight to ten days and the young larvae immediately seek the roots of the vines underneath the ground and attack first the small rootlets which are often 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 Lowther, Granville, ed; Worthington, William, 1871-. North Yakima, Wash. , The Encyclopedia of Horticulture Corporation
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Keywords: ., bookcentury1900, booksubjectfruitculture, booksubjectgardening
