. A manual of dangerous insects likely to be introduced in the United States through importations. Africa, N. America, bores in wood. (See Horse-chestnut.) Lymantriidse. Dasychira pudibunda Linnaeus, a defoliator; Europe. (See Forests.)if^Lymantria monacha Linnaeus, the nun moth; Europe: defoliator. (See Forests.) Hyponomeutidse. Hyponomeuta padi Zeller, a web worm; Europe: attacks R. evonymella, a web worm; Europe. LITERATURE. SORAUER, p. Handbuch der Pflanzenkrankheiten, 3d ed., 1913, vol. , R. Der Forstschutz, 1900, vol. , L. Die Schildlause (Coccidae),
. A manual of dangerous insects likely to be introduced in the United States through importations. Africa, N. America, bores in wood. (See Horse-chestnut.) Lymantriidse. Dasychira pudibunda Linnaeus, a defoliator; Europe. (See Forests.)if^Lymantria monacha Linnaeus, the nun moth; Europe: defoliator. (See Forests.) Hyponomeutidse. Hyponomeuta padi Zeller, a web worm; Europe: attacks R. evonymella, a web worm; Europe. LITERATURE. SORAUER, p. Handbuch der Pflanzenkrankheiten, 3d ed., 1913, vol. , R. Der Forstschutz, 1900, vol. , L. Die Schildlause (Coccidae), 1912. CABBAGE; KALE; COLLARD; BRUSSELS SPROUTS; CAULIFLOWER; KOHLRABI. (Brassica olenacea Linnaeus, varieties. Family Cruciferae.) The many varieties of this species especially in Europe, have very importantpests, which it is not desirable to have imported into this country. Since the flowerhead is used in some varieties, the foliage in others, and the roots in others, there isdanger of importing almost any pest of the species. U. S. Dept. of Agriculture, Manual of Dangerous Insects Plate The Red-Banded Thrips. The red-banded thrips (Heliothrips ruhrocinctus): Fig. 1.—Adult. Figs. 2-4.—Nymphal stages (Russell.) CABBAGE INSECTS. 49 A. BETTER KNOWN CABBAGE PESTS LIKELY TO BE IMPORTED. Contarinia torquens Meijere.(Cabbage Midge. Itonididse [Cecidomjidse]; Hosts: Cabbage. Injury: Attacks young cabbage plants, especially, breeding in the leaf axil andhindering growth. Has several generations. Pupates in soil. Distribution: , P. Handbuch der Pflanzenkrankheiten, 3d ed., 1913, vol. 3, p. 447. Dasyneura brassicae Winner. (Cabbage Gall Midge. Itonididse [Cecidomj-idse]; Diptera.) Hosts: Cabbage, rape. Injury: Breeds in fruit. Description and biology: Fly blackish brown, thorax covered with pubescence givinga silvery sheen, abdomen flesh red, with black bands; length mm. long, milkwhite. Forms a gall in the fruit, feeds on the seed. Distribution:
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