Use seed treated with Thiram seed protectant. Hot-water seed treatment is a safeguard against seed-borne diseases such as black rot, blackleg and Alternaria leaf spot.

For control of Pythium damping off, use seed treated with Apron XL LS seed protectant. 

When seedlings are to be grown in a seed-bed for production of transplants, choose a site where cole crops have not been grown before or fumigate prior to seeding with:

Vapam at 550 to 900 L/ha (220 to 360 L/acre).

To help prevent damping-off, wire stem and downy mildew, the young seedlings should also be drenched, using 1,000 to 2,000 L/ha (400 to 800 L/acre) of water every 5 to 7 days with one of the following:

        Bravo 500 at 2.5 to 4.8 L/ha (1 to 1.9 L/acre).

For more information on seed-bed treatments see Disease Control section of this chapter.