Gloeosporium and Colletotrichum - other problems that may be confused with Gloeosporium

  • Gloeosporium and Colletotrichum rots can be easily confused with those caused by Nectria galligena which also occur in the cheek, eye and stalk end of the apple.
  • The presence of slimy spore masses usually distinguishes it from Nectria rot, but where these are absent, the two rots can only surely be distinguished by laboratory examination.
  • Gloeosporium rot may also be confused with Penicillium rot, but the latter is usually squashier and readily distinguishable if the brilliant white/turquoise spore masses typical of Penicillium are present.