Annual report of the North Carolina Agricultural Experiment Station (1909) (14802318473)

Identifier: annualreportofno1909nort (find matches)
Title: Annual report of the North Carolina Agricultural Experiment Station
Year: 1909 (1900s)
Authors: North Carolina Agricultural Experiment Station
Subjects: North Carolina Agricultural Experiment Station Agriculture
Publisher: (Raleigh, N.C.?) : Board of Agriculture
Contributing Library: State Library of North Carolina, Government & Heritage Library
Digitizing Sponsor: LYRASIS Members and Sloan Foundation



Text Appearing Before Image:
s grain moth, develops entirely in the kernelsof grain, either wheat, corn, barley or other cereals, while the remain-der have the habit of passing from one grain to another, marking theirprogress by a silken tube or web, or working their way through meal, 203—3 14 N. C. AGRICULTURAL EXPERIMENT STATION. bran or whatever material they occur in, transforming the same intoa worthless webby mass. Owing to this habit the meal worms causedamage all out of proportion to the amount of food they actually con-sume. In point of importance the angoumois grain moth should stand nextto the rice weevil—in some localities, in fact, greatly outstripping it innumbers. The Angoumois Grain Moth (Fly Weevil)(Sitotroga cerealella, 01.). The Southern farmer generally applies the term fly weevil to thisspecies to distinguish it from the rice or black weevil, but the term ishardly appropriate, because the adult flying moth is simply the parentform of the worm that feeds in the grain. This species does not
Text Appearing After Image:
Fig. 7.—Showing the work of the Angoumois Grain Moth, as often seen in October—slightly enlarged. attack meal or food products, but lives in the whole grain, a singlekernel of corn often furnishing food for two or three larvae. Thecharacteristic appearance of an infested ear of corn, as sometimesfound in the field during October or November, is shown in Fig. 7.Fig. 8 shows an ear from which several generations of moths haveemerged, such specimens being frequently found in two-year-old corn.The moths are seen in Fig. 9, the male always being of smallersize. In color they are light grayish-brown, with lines of black, and CORN WEEVILS AND OTHER GRAIN INSECTS. 15