Interpretation of aphid performance data in quantifying resistance | [Interprétation des données de performances des pucerons dans la quantification de la résistance]
1999
Kift, N.B. ((Horticultural Reserach International, Wellesbourne (Royaume Uni))) | Ellis, P.R. | Singh, R.
Measurement of the intrinsic rate of natural increase (rm) is a widely used measure of aphid performance that can be derived by several different methods. This paper discusses the interpretation of rm values collected by different methods in the context of a programme to develop varieties of horticultural brassicas resistant to the cabbage aphid Brevicoryne brassicae. It is concluded that the most appropriate and practical method for assessing B.brassicae performance is to monitor development of a limited number of nymphs that are allowed to find their most favourable feeding site on the plant
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