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Field Trials with various Dry Baits against the Desert Locust, Schistocerca gregaria (Forsk.)

Published online by Cambridge University Press:  10 July 2009

R. J. V. Joyce
R. J. V. Joyce
Affiliation:
Research Division, Ministry of Agriculture, Wad Medani, Sudan.
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Extract

Tests of the acceptability of crushed dura (Sorghum millet) of various particle size composition suggested only small differences between any of them and wheaten bran. There seemed to be a slight advantage to dura passing a sieve of 20 meshes to the inch and stopped by 30, and a slight disadvantage to dura stopped by a 20-mesh sieve. There is certainly no reason to use wheaten bran in preference to crushed dura.

Maize bran containing 2·5 per cent. sodium arsenite was less acceptable than the other materials, but crushed maize was not. Nevertheless, this arsenic bait and also coarse dura with BHC produced a mortality apparently no lower than the most acceptable baits containing 0·5 per cent. BHC.

It is suggested that experiments with milling and separating machinery may produce a first-class dura bait and at the same time reserve the flour for human consumption.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 42 , Issue 4 , January 1952 , pp. 691 - 696
Copyright
Copyright © Cambridge University Press 1952

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References

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