Department of Agriculture hardiness zones 6 to 9.

Plums Falling Off Tree Before Ripe. I have a plum tree that produces lots of fruit, but just before they get ripe they fall off. Lack of pollination or brown rot could be the cause. Plum trees are very particular about their pollinators.

They are generally not self-fruitful meaning they need a different plum and often a specific variety for pollination and fruit development. Fruit flies, apple maggots, caterpillars and plum curculio damage the plums, which eventually drop from the tree.

Plums damaged by insects are usually scarred or rotted and the causes are easily. Sep 21, Plum trees drop fruit naturally in two major cycles. The first drop happens in spring when the tree sheds infertile plums over a two- or three-week period after blooming.

The second drop happens in midsummer. Not all plum varieties exhibit this June drop, which most commonly affects the Italian prune plum. Aug 23, 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 a nutrient deficiency that can cause a lot of fruit to fall off the tree.

Also, lack of water can be a major concern which can lead to excessive and premature fruit drop. May 13, There can be numerous reasons why a plum tree drops its fruit before it ripens: insects, disease, high winds, and stress (too much water, too little water, lack of nutrients, poor drainage, weed competition, and excessive shade, for example). May 18, The stronger specimens then have access to more of the nutrients and water the tree provides and have a better chance to reach the point of ripening.

A tree can naturally lose up to 80 percent of its immature fruit and still be considered normal. Dec 10, Temperature Changes Sudden, drastic temperature swings, especially right after fruit set, could cause the tree to drop immature fruit.

High temperatures helps to sweeten citrus fruit, but they. Fruit bearing is a stress on the tree, so it is not unusual that, during this recovery year, your tree will not have a fruit crop. To avoid fruit drop as a result of overbearing, we recommend thinning the young fruit before the tree drops it. In general, it is best to leave inches between each fruit and break up any clusters that may form.

Jun 07, A: It’s normal for all types of citrus trees to drop some immature fruit at this time of year.

This self-thinning is nature’s way of making sure the tree does not become too overburdened with Estimated Reading Time: 3 mins.

With a little detective work, you can figure this out.

Why do plums fall off tree before ripe? There can be numerous reasons why a plum tree drops its fruit before it ripens: insects, disease, high winds, and stress (too much water, too little water, lack of nutrients, poor drainage, weed competition, and excessive shade, for example).