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 seedlings have a thin taproot and cordate (heart-shaped) cotyledons. The first leaves produced are ovate (egg-shaped) with a lobed petiole. Plants are 40â60 cm (16â24 in) tall in their first year at the mature vegetative stage, and 1.5â2.0 m (4.9â6.6 ft) tall when flowering in the second year.