1. Symptom and the cause of disease: in initial infection period, it presents white while it presents bottle green in later infection period. The center of colony shows bottle green and gradually becomes shallow outwards.
In serious conditions, fungus sacks and substrates totally become black green, watery and smelly. The main cause of disease is the halfway sterilization in substrate, operator fails to conduct sterilize operation when managing the inoculation. Green mold is easy to be observed in the temperature range of 15-30 degrees and the environment of meta acid.
2. Control methods:
A. The sterilization of compost should be thorough and the prewet of compost should be even.
B. It is proper to strictly conduct aseptic technique When inoculating.
C. Excessive dosage of formaldehyde and other acid disinfectants should be avoided so as to prevent acid environment.
D. When finding green mold on the surface of fungus sack, you could use the 75% of ethyl alcohol mixture and 2% of formaldehyde to inject on the infected part.
E. When finding green mold on fungus tubes after removing fungus sacks, it is advisable to use 0.2% of Carbendazim or lime slurry to smear on the infected part.