There are many brassica species and cultivars that can be grown as biofumigants or cover crops.

These brassicas are typically thought of as cool seasons options but work by the cover crop project has looked at how they perform across the year in southern Queensland — and some results will surprise!

In this webinar Dr John Duff and Dr Kelvin Montagu summarise the results of trials growing more than 12 different biofumigants at different times of the year in Gatton and Bundaberg.

In Part 1 the discussion focuses on biomass produced (how well they grew) and glucosinolate production (how ‘hot’ was the biomass).

In Part 2, Dr Duff discusses pest and disease issues during growth and early indications of their impact on some soil-borne diseases including charcoal rot, sclerotinia rot and sclerotium rot.