Standard, pyramid, fan, and festooned tree forms are all possibilities.

Sep 21, Several types of fungi may attack the fruit of the plum tree and either damage or ruin the plums, causing an early fruit drop. Regular applications of fungicide control brown rot and other common fungal diseases. Regular cleanup of fallen fruit and a thorough pruning of diseased branches during the winter also reduce the impact on the crop.

If the plums were not full size and lacked a seed (stone) this was the problem. If you don't know the variety you may need to add two plums you know cross pollinate and bloom the same time as yours and hope they also pollinate this one. If the fruit turned brown and shriveled it is brown rot. Remove infected fruit to reduce the source of disease for next season.

Aug 23, Depending on what kind of Plum you have fruit drop is a normal occurrence. It is the trees way of thinning itself when we have not tried to thin a plum tree is dropping marble size plums on ground fruit ourselves. Juvenile as well as mature fruit can fall off the tree very easily if we have too many Plums on the tree to start with. Thinning the tree is the best preventative but you also may have.

Remove and use any fallen plums, do not let them remain on the ground. Pick fruit as soon as it is ripe, do not let them over-ripen on the tree.

If your plum tree is very tall with fruit high up that you cannot reach then you have a problem. With trees of this size the plum fruit higher up cannot be harvested and is a prime target for Brown Rot. Jul 27, Additional Plum Problems. While not technically a disease, plum curculio is a common problem with plum trees. This snout beetle pest and its young can wreak havoc on these fruit trees, causing extensive fruit drop and decay or scabbing of the fruits.

Spraying trees with suitable pesticides is your best option in combating these pests. May 14, This results in more fruit on the ground than on the tree, but it's important to produce large, flavorful fruit and to minimize limb breakage.

Thin apricots when the fruit is about ¾ inch in diameter, leaving 1 apricot every 3 inches. Thin plums when the fruit is ¾-inch-long, leaving 1 plum every 4 to 6 inches.