. Class book of economic entomology, with special reference to the economic insects of the northern United States and Canada. Beneficial insects; Insect pests; Insects; Insects. CLASSIFICATION AND DESCRIPTION OF COMMON INSECTS l6l Life-history.—It hibernates as an adult under rubbish, in out- buildings, etc. In spring the adult injures the young squash plants by sap punctures, and at that time lays eggs; nymphs reach maturity in July-August. Two broods in a season in the South. Control.—Spray with kerosene emulsion; trap the adults under bits of board; destroy the egg-masses; destroy the vines
. Class book of economic entomology, with special reference to the economic insects of the northern United States and Canada. Beneficial insects; Insect pests; Insects; Insects. CLASSIFICATION AND DESCRIPTION OF COMMON INSECTS l6l Life-history.—It hibernates as an adult under rubbish, in out- buildings, etc. In spring the adult injures the young squash plants by sap punctures, and at that time lays eggs; nymphs reach maturity in July-August. Two broods in a season in the South. Control.—Spray with kerosene emulsion; trap the adults under bits of board; destroy the egg-masses; destroy the vines in fall; plant early squash plants among the cucumbers and melons as traps. l^YGMVDM (Chinch Bugs, etc.) Chinch Bug {Blissus leucopterus Say).—(Consult Bull. 95, 111. Agr. Exp. Stn.; Bulls. 15, 69; Circ. 113; Farmers' Bull. 132, Div. Ent., U. S. Dept. Agr.) A serious native Ameri- can pest, especially in the Central States to cereals and corn crops and to timothy meadows; widely distributed in the Eastern half of the Continent from the West Indies to Canada. Adult.—A black bug, ^g inch long; wings white and marked by a small black triangle on their outer margins; bases of the antennae and the legs are red. Short winged forms in the East and along the sea coast and Great Lakes. April-May, and August (Figs. 104 and 105). Eggs.—Cylindrical, -^oo ii^ch long;squarer at one end; whitish at first, becoming amber-ed. in May, but in 10 days in August. Nymphs.—Four moults, the successive instars showing changes in size and markings, the first three often called the red stages. In the first stage it is pale red throughout with a yellow band across the base of abdomen; in the second stage the head and prothorax become darker, the abdomen vermilion with pale yellow band; in the third stage the color is decidedly darker throughout, and in the fourth the red has disappeared, general color varying from black in front to dusky grey behind (Fig. 106). Life-history.—The bugs hibern
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectinsects, bookyear1919
