The possibilities of using genetic principles to improve biotic agents used in biological control are discussed, and a number of examples quoted where possibly useful racial differences between parasites occur. However, the main conclusion is that in introductions of biotic agents the principal aim should be to have as much genetic variability as possible in the material released, rather than to try and select a priori certain apparently suitable strains.
No takes yet. Share an insight, caveat, or question.
F. J. Simmonds (1963) studied this question.
Synapse has enriched 2 closely related papers on similar clinical questions. Consider them for comparative context: