Action level, concentration level of airborne eto in or at breathing level. Which is 0.5 ppm
Always decontaminate equipment after working in a field suspected of having the club-root fungus by thorough washing followed by spraying all surfaces with a disinfectant such as Lysol, formaldehyde, etc. Grow cabbage and related crops once every three to five years with crops not in the mustard family.
Fall cabbage is best to be in the ground 6 to 8 weeks before the first frost. You should also try to plant the seedlings on a cloudy or foggy day to minimize the shock of transplanting. 2. Mix nitrogen fertilizer and compost with the soil with a garden fork. Cabbage requires three key items in the soil for growth: nitrogen, phosphorus and potassium. The soil pH should be between 6.5 to 6.8 for optimum growth and to discourage certain diseases.