Controlling soilborne diseases and pest with biofumigants

Brassica napus (Source: Wikipedia)

Biofumigation is a sustainable practice that improve soil's biological, chemical and physical characteristics.

The emerging tool of biofumigation can help reduce reliance on chemical fumigants. Biofumigation involves the cultivation of specialised cover crops.

Brassica biofumigant crops release naturally occurring sulphur compounds, especially as they break down. These are harmful to various soilborne pathogens. Some of these pathogens can persist in soil for extended periods, even when a suitable host is absent. Biofumigation therefore offers a natural method for managing soilborne pathogens as well as some pests and weeds.

In Issue 11 of PotatoLink magazine learn more about the role of biofumigants in controlling soilborne pests and diseases, including:

• Biofumigant species

• Selecting and growing biofumigants crops

• The benefits for potatoes growers

Including a case study from a potato grower in the Lockyer Valley who was facing a serious challenge with Verticillium dahliae (commonly known as Verticillium wilt) in their fields.