Blue mould (Peronospora tabicina Adam) of tobacco in North Queensland: Some aspects of chemical control

Abstract

The results of screening trials to assess the efficiency of various fungicides and fungicidal mixtures for blue mould control are detailed and discussed. Field spray trials are described and a theory of acquired resistance following blue mould attack is developed to explain the anomalous results in some trials. Evidence drawn from field experiments is presented to substantiate this theory.