oa Journal of the Entomological Society of Southern Africa - Methyl bromide Fumigation of Horizontally Stored Bulk Maize



The terms ""horizontal"" or ""flat"" as applied to bulk grain structures have been generally used to descriptionbe an installation in which the horizontal dimension of the grain bulk exceeds that of the vertical dimension. In ""silo"" or ""vertical"" structures the height is greater than the width or diameter of floor-space. One of the principal advantages of storing bulk grain in horizontal structures is, undoubtedly, the lower capital expenditure involved in the construction of this type of installation. A serious disadvantage of the horizontal system is, however, the difficulty experienced in preventing and controlling insect infestations which may arise in the grain.


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