Annual report of the North Carolina Agricultural Experiment Station (1917) (14773737212)

Identifier: annualreportofno1917nort (find matches)

Title: Annual report of the North Carolina Agricultural Experiment Station

Year: 1917 (1910s)

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

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Figure 13. Larva feeding on the roots of Cyperus Grass The Bulletin 21

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U 22 The Bulletin pupal cells over winter, not becoming active until the following spring.There is some evidence to show that the early maturing adults lay eggsthe same summer that they reach maturity, these eggs hatching andreaching maturity late in the season. THE EGG DESCRIPTION The egg is subreniform-elliptical in shape, almost pure white in color,and almost perfectly smooth. (Fig. 15). As the egg grows older it be-comes more yellowish. Its size varies greatly, as is indicated by thefollowing table, which shows the lengths and greatest diameters of 51eggs selected at random throughout the egg-laying season. The meas-urements were taken- by means of a binocular microscope fitted withmicrometer eyepiece calibrated to 0.0416 m.m. Inasmuch as these eggswere selected at random throughout the season, they probably representfairly average conditions for North Carolina. No constant differencesbetween the sizes of eggs taken early in the season and those taken laterin the season can be det

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annual report of the north carolina agricultural experiment station 1917 book illustrations north carolina agriculture

1917

State Library of North Carolina

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