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Control Measures in 1948–50 against Insects attacking Groundnuts stored at Kano, Northern Nigeria

Published online by Cambridge University Press:  10 July 2009

R. W. Howe ,
L. A. W. Hayward  and
G. S. Cotterell
R. W. Howe
Affiliation:
Entomoligist in charge of Kano Laboratory, seconded from Pest Infestation Laboratory, Slough.
L. A. W. Hayward
Affiliation:
Now in charge of Pest Infestation Research Unit, Lagos.
G. S. Cotterell
Affiliation:
Formerly in charge of West African Pest Infestation Survey, Nigeria.
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Extract

The control methods used to protect new-crop groundnuts stored in Kano against insect attack are described.

The main method used was the spraying of aqueous suspensions of DDT directly on to the sacking of piles stored in the open and on the walls of warehouses before the nuts were stacked. The solutions were applied with a slow-moving orchard power sprayer, and 50 per cent, wettable powder applied at the rate of 360 mg./sq. ft. was found satisfactory. The BHC wettable powder applied at about 12 mg./sq. ft. was cheaper and equally as good and has now been found safe. Treatment markedly reduced the Tribolium population but had little effect on Trogoderma. Sprays of oil solutions were little used and were not very satisfactory.

Type
Research Article
Information
Bulletin of Entomological Research , Volume 43 , Issue 2 , July 1952 , pp. 259 - 279
Copyright
Copyright © Cambridge University Press 1952

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References

Lewis, S. E. (1945). Methyl bromide as a fumigant: determination in air.—J. Soc. chem. Ind. Lond., 64, pp. 57–61.Google Scholar