. Common injurious insects of Kansas. Insect pests; Insects. 38 INJURIOUS INSECTS OF each side of this line, a narrow, sulphur- yellow stripe; still below, other brown and yellow lines. Below, dull white. Head large, pale yellow. The first moths appear during May, in the latitude of St. Louis, according to Doctor Riley, and the bulk of the larvae are full-grown about the time wheat is in the milk. The larvae feed on the wheat heads until harvest, when they pupate, and the adult moths issue in the latter part of July. These lay eggs which produce a second brood of worms in August, the
. Common injurious insects of Kansas. Insect pests; Insects. 38 INJURIOUS INSECTS OF each side of this line, a narrow, sulphur- yellow stripe; still below, other brown and yellow lines. Below, dull white. Head large, pale yellow. The first moths appear during May, in the latitude of St. Louis, according to Doctor Riley, and the bulk of the larvae are full-grown about the time wheat is in the milk. The larvae feed on the wheat heads until harvest, when they pupate, and the adult moths issue in the latter part of July. These lay eggs which produce a second brood of worms in August, the worms feeding on leaves. These larvae pupate in September, and pass the winter as pupse in the ground. The feeding time of the larvae when eating the wheat heads in June seems to be at night. A correspondent in Rush county writes: The worms come up after dark, and feed upon the heads. They are in sufficient num- bers to destroy the crop in some fields and parts of fields. Fields partly burned over have them only where fire did not run. Twelve acres isolated wheat on burnt stubble is free from them. Damage like the above is reported from all directions, but some wheat seems to be escaping everywhere. The best wheat is on ground fallow last year, and on which no wheat has been for several years. Remedies. — No convenient effective remedy for the pest has yet been proposed. The remedies so far recognized are mostly preventive. The pupse may be largely destroyed by late fall plowing and harrowing; and many moths may be captured in May by means of lights and sweetened and poisoned fluids There are certain natural enemies; two parasitic Ichneumon flies and one Tachinid fly are noted by Doctor Riley. Kansas wheat- growers should give this pest special attention, to the end that a practical remedy for it may be found. Kansas Notes.—Doctor Riley records the appearance of this in- sect in Dickinson, Douglas and Davis counties in 1876. (Ninth Annual Report State Entomologist of Missou
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectinsects, bookyear1892