Why Are My Apples Falling Off the Tree Early?

Finding a carpet of small, immature apples under your tree in early to midsummer — weeks or months before the fruit should be ready — is alarming, but it is not always a sign that something has gone seriously wrong. The timing and condition of the fallen fruit are the key to diagnosis. Some premature drop is entirely natural; other causes indicate pest damage, disease or stress that needs addressing.

June drop — normal and natural

In early to midsummer (often June in the UK), apple trees naturally shed a proportion of their fruitlets. This is the tree's mechanism for adjusting the crop to what its root system, leaf area and stored energy can support to maturity. A heavy natural set is reduced to a sustainable number. The dropped fruitlets are typically small (marble-sized), undamaged and do not have obvious holes or rot. No action is needed — this is healthy tree behaviour.

Drought stress

If the tree experiences a sudden dry spell after a period of good moisture during fruit development, the tree sheds excess fruit to conserve water. This differs from June drop in that it is triggered by a specific weather event rather than happening on a predictable schedule. Mulching around the base of the tree to a depth of 5–7 cm (keeping mulch away from the trunk) and watering during prolonged dry spells reduces drought-stress drop significantly.

Codling moth

Codling moth larvae bore into developing apples and feed on the core. Affected apples fall early and are easily identified: cut one open and you will find a tunnel leading to the core, filled with brown frass (caterpillar waste), with or without a small pinkish caterpillar still inside. Use pheromone traps from May onward to monitor adult moth activity, and apply codling moth grease bands around the trunk to catch larvae descending from the tree after feeding.

Brown rot and other diseases

Fungal rots cause individual fruits to develop brown patches, shrivel and drop early. Affected fruits are soft and decaying rather than firm and green. Remove and destroy (do not compost) fallen and hanging mummified fruits promptly — these are the primary source of spores for future infection.