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.
Cabbage is a hardy vegetable that grows especially well in fertile soils. There are various shades of green available, as well as red or purple types. Head shape varies from the standard round to flattened or pointed. Most varieties have smooth leaves, but the Savoy types have crinkly textured leaves.