skip to Main Content
Hortgro Decay Types Aspergillus Rot Plum Example

Aspergillus rot

Aspergillus rot may infect plums, but are less common than any of the other pathogens listed. The disease is often referred to as black mould. Dark brown to black, loosely scattered fungal structures (ball-like) appear on the infected fruit.  The…

Read more
Hortgro Decay Types Rhizopus Rot Peach Example

Mucor rot

Mucor rot is not as common as Rhizopus rot on plums. The symptoms are similar at the early stages of development. At fungal maturation, the spore bearing structures tend to be stiffer than that of Rhizopus, often directed at a…

Read more
Hortgro Decay Types Alternaria Rot Plum Example

Alternaria rot

Decay on plums caused by Alternaria rot is generally firm. The surface of the fruit is covered by dark green / black spore masses. The fungal growth initially appears dark, grey-black, with a dark green colour settling as decay progresses.…

Read more
Hortgro Decay Types Penicillium Rot Plum Example

Penicillium rot

The flesh of plums first becomes brown, with white fungal structures developing on the edges of the lesions. As decay develops, the white structures are covered with green-blue spore masses. The lesion is soft and watery, with a defined margin.…

Read more
Hortgro Decay Types Mucor Rot With Rhizopus Rot Nectarine Example

Rhizopus rot

The flesh of plums initially turns brown. The lesion is soft and soon collapses.  As the decay development progresses, the surface of the fruit is at first covered with coarse, white spore masses, which rapidly turns black.  The superficial fungal…

Read more
Hortgro Decay Types Grey Mould Rot Plum Example

Grey mould rot

The flesh of plums becomes brown with first lesion expression. The lesions are categorised as being firm, yet slightly soft, with an uneven margin. Spore masses of ash-grey / brown colour, cover the surface of infected fruit, as the fungus…

Read more
Hortgro Decay Types Brown Rot Plum Example

Brown rot

The flesh of the plum becomes brown at the point where growth has manifested. At first the lesions are small, brown spots, with no superficial fungal growth evident but which expands under favourable conditions. The lesions are categorised as being…

Read more
Back To Top