Every now and then, one of the trees starts dropping.

Generally, a good way to tell if your orange tree has a pest or disease is by inspecting the leaves, branches, and trunk.

Orange trees drop leaves from over or under-watering, extreme temperatures, transplant shock, pests, and diseases.

However, issues with watering and temperatures are the most common. To prevent leaves from dropping, only water orange trees when the first inches of soil gets dry and avoid temperatures below 27ºF. Jul 02, An orange tree (Citrus sinensis) can lose its leaves for a number of reasons, few of which mean the tree is dead.

And one of the first parts that are shed from a dying orange tree?

Diseases, pests and environmental factors can cause leaf drop that won't. Jul 17, Low light levels area common reason for leaf drop and sometimes shoots may die back.

The plant should be placed in a position where it receives the brightest light. Any shoots that have died should be pruned back to healthy wood. Sudden temperature changes or low temperatures can result in the loss of leaves.