Entomology for beginners; for the use of young folks, fruitgrowers, farmers, and gardeners; . e author; h, g, f, drawn onwood by L. Trouvelot. Wo face page 195.) INSECTS INJURIOUS TO AGRICULTURE. 195 wheat and burning the stub-ble are of doubtful use, asthis destroys the useful para-sites as well as the flies. The Wheat-midge (Di-plosis tritici Kirby).—This species injures thehead. Several minuteorange-red maggots., aneighth of an inch long,crowding around the ker-nels of wheat, cause themto shrivel and dry whenripe. The maggots de-scend into the ground andspin minute cocoons, fromwhich in the
Entomology for beginners; for the use of young folks, fruitgrowers, farmers, and gardeners; . e author; h, g, f, drawn onwood by L. Trouvelot. Wo face page 195.) INSECTS INJURIOUS TO AGRICULTURE. 195 wheat and burning the stub-ble are of doubtful use, asthis destroys the useful para-sites as well as the flies. The Wheat-midge (Di-plosis tritici Kirby).—This species injures thehead. Several minuteorange-red maggots., aneighth of an inch long,crowding around the ker-nels of wheat, cause themto shrivel and dry whenripe. The maggots de-scend into the ground andspin minute cocoons, fromwhich in the followingJune emerge brightorange - colored insect is far lesscommon and destructivethan the Hessian fly. REMEDY. — Plough deepafter harvest, and burn the screenings after threshing. Chinch - bug (Blissusleucopterus Say). — Thisbug, while young, sucksthe roots of wheat andcorn, afterwards infestingin great numbers thestalks and leaves, punc-turing them with itsbeak. It appears earlyin June, and there is asummer and an autumnbrood, the adults hiber-nating in the FIG. 238.— Wheat-midge, a, male; b, fe-male; c, wing, enlarged; d, antenna) jointsof male; e. of female; /, ovipositor, withits two sliding tubes and terminal appen-dages for guiding the eggs, g; h, larvae ona kernel; i, the larva, enlarged; i, thesame, natural size: j, the same crawling,with its antennae extended; k, anterior, I,posterior, eiid.—After Fitch. 196 ENTOMOLOGY.
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