Neonectria fruit rot can be confused with rots caused by Gloeosporium spp or Colletotrichum spp. or Penicillium spp.
- These rots similarly occur at the stalk, cheek and calyx end of the fruit.
- Those caused by Penicillium spp. are usually squashier, paler green in colour with pure white or turquoisey-green spore pustules present.
- Rots caused by Gloeosporium or Colletotrichum species may only be distinguishable by microscopic examination of spores, if present, or culturing the fungus on to agar media.