Annual report of the North Carolina Agricultural Experiment Station (1917) (14774102935)

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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into a discussion of the proper fertilizer to use forcorn, but it has been shown on one of our experimental plats that anapplication of fertilizer will make the plants #grow much more rapidly,and hence be less liable to be fatally injured by the cofn bill bug thanplants which have not been heavily fertilized (Fig. 67). In the sameway a heavy application of lime to land that is sour will make theplants grow much more rapidly and thus escape the attacks of the billbug. The importance of lime may be further emphasized by the factthat very much of our corn laud in the corn bill bug sections of theState is naturally very acid. The belief so prevalent in the corn bill bug sections that fertilizers actas repellents against the corn bill bug does not seem to be based onfacts. Repeated experiments with various mixtures of fertilizers, air-slaked lime, tobacco dust, tobacco extract, and basic slag failed to showthat the adult beetle was deterred from feeding and laying eggs in The Bulletin 119

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120 The Bulletin plants tlius protected. In some cases the material used as a repellentwas actually mounded around the base of separate cornstalks, yet thebeetles crawled over the mounds of the supposed repellent to feed uponthe protected stalk. In all cases where a repellent action has beenascribed to any fertilizer, the writer is of the opinion that the resultsobserved are not due to the repellent action of the fertilizer, but to thefact that such plants are growing rapidly, owing to an excess of foodmaterial; hence they escape the attacks of this insect. DEAINAOE It is a matter of common observation that the corn bill bug is worsein low wet lands than it is in uplands. Naturally this has led to thestatement that the most important factor in the control of the corn billbug is proper drainage of the land; and while this is an importantremedy, its importance might easily be over-emphasized. The PenderTest Farm is exceptionally well tile drained, yet the bill bug has notbecome a neglig

annual report of the north carolina agricultural experiment station 1917 book illustrations north carolina botany horticulture agriculture insects high resolution images from internet archive

1917

State Library of North Carolina

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public domain