Notes on two pineapple diseases in Queensland

Abstract

The isolation of Thielaviopsis paradoxa (De Seynes) von Hohn from white leaf spot lesions and the reproduction of typical symptoms by inoculation with this fungus are described. The results of inoculations with a Fusarium and two types of Penicillium isolated from fruitlet core rot are given. Circumstantial evidence is presented the mealy bugs and mites provide a means of entry of the causal organism.