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Aims: The aim of the project was to develop naturally occurring plant pathogens a s mycoherbicide biological control agents for Xanthium spp., Noogoora and Bathurst burrs.

Objective: Instigate research into application strategies for Pix on cotton in Australia and compare results with similar experiments from California.

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The objectives of this study were: (i) To study the population dynamics of Heliothis on the Darling Downs and to quantify the significance of the major controlling influences (predators, parasites pathogens, weather a