Abstract
MUCH that has been written on the subject of biological control is of a scattered and rather fragmentary character. Some of these writings record successful application of the method; others are biological studies more or less incidental to practical issues; while a few are attempts to formulate the general biological principles involved The factors governing success or failure, where biological control is put into practice, are generally manifold and complex. We do not understand the operation of these factors sufficiently to be able to forecast an end-result with any certainty. Each project is of the nature of an experiment in itself which may, or may not, give the desired practical outcome.
The Biological Control of Insects:
with a Chapter on Weed Control. By Prof. H. L. Sweetman. Pp. xii + 461. (Ithaca, N.Y.: Com-stock Publishing Co., Inc., 1936.) 3.75 dollars.
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IMMS, A. Biological Control of Insects. Nature 139, 449 (1937). https://doi.org/10.1038/139449a0
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DOI: https://doi.org/10.1038/139449a0