Brown rot is a common fungal disease that will infect the blossoms, fruit spurs, twigs, small branches and fruit of plums and other fruits. It tends to be worse when there are frequent spring and ...

As you have noted, it is normal for a plum tree to drop excess fruit, but your description of the browned and shrivelled, prune-like fallen plums sounds suspiciously like brown rot.

Plum pocket results in formation of distorted, light green, bladder-shaped fruit. Although these diseases become visible on our peach trees in the spring, the treatment window is fall, after leaf ...

Once the trees are mature, their pruning needs are minimal, just a light annual thinning suffices. Moreover, they're generally less susceptible than Japanese varieties to brown rot, a fungus ...

The most common plum tree diseases include black knot, plum pocket, brown rot, plum pox virus, perennial canker, and bacterial leaf spot. Control of black knot requires both prevention and sanitation.

Certain plum varieties, such as ‘Czar’, 'Jefferson', ‘Ontario’, and ‘President’, have natural resistance to brown rot, providing a more resilient option for growers.

Sanitation is critical in effectively managing brown rot. During the dormant season, mummified fruit and cankers should be pruned and either burned, buried deep in the soil or sent to the landfill.