Footbaths are a simple tool which can reduce the risk of bringing on farm a range of pest and diseases. This video from the banana industry shows some good solutions to managing footwear and footbaths on farm.
Website link to the Australian Interstate Quarantine website.
Based upon a peer reviewed weed risk assessment tool, the Invasive Plant Risk Assessment Tool provides industry with a number of plants of low weed risk.
Grow Help Australia provides a comprehensive disease and pest diagnostic service for all horticultural crops.