Store stock solutions in dark bottles under refrigeration. Fusarium oxysporum is often found in combination with fungus gnats causing major losses. Remove infected plants to prevent spread of the disease. Subirrigation reduces spread of the disease because splashing water from overhead watering carries the spores. Phytophthora parasitica and Pythium aphanidermatum causes basal stem rot and root rot.
Phylloclade abscission is common.
Those infected with Pythium aphanidermatum have similar symptoms but without segment abscission and the reddish margins. Rhizoctonia solani causes stem rot. Erwinia carotovora subsp. Remove infected plants and avoid splashing water. Use plastic gloves and dip in disinfectant solution to prevent the spread of disease, especially erwinia, during pinching and leveling Insects 1.