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Why Are the Leaves Falling Off My Orange Tree?

Updated February 21, 2017

Orange trees losing their leaves during the spring or summer, as opposed to the fall, have a serious health problem requiring the attention. Poor environmental conditions, disease or pest issues often cause leaf loss. Keep an orange tree healthy to avoid leaf loss.

Causes

Provide a healthy growing environment. Orange trees need full and direct sunlight throughout the day and regular watering. Keep the soil irrigated and ensure that it drains well to prevent fungal problems in standing water. Prune the orange tree annually of any dead or diseased limbs that can cause leaf loss later in the season, or spread disease to the rest of the tree. General orange tree care helps prevent leaf loss.

Effects

Applying pesticides and fungicides controls pest and disease problems. Dormant horticultural oils help kill remaining insect eggs from the previous season. Applying pesticides throughout the rest of the growing season protects the tree from insect damage. Fungicides kill or control fungal spores, preventing disease from attacking and killing the leaves.

Cultural Control

Provide an orange tree with a healthy growing environment. Orange trees need full and direct sunlight throughout the day and regular watering. Keep the soil irrigated and ensure that it rains well to prevent fungal problems in standing water. Prune the orange tree annually to remove any dead or diseased limbs that can cause leaf loss later in the season, or spread disease to the rest of the tree. General orange tree care helps prevent leaf loss.

Pesticides and Fungicides

Applying pesticides and fungicides controls pest and disease problems. Dormant horticultural oils help kill remaining insect eggs from the previous season. Applying pesticides throughout the rest of the growing season protects the tree from insect damage. Fungicides kill or control fungal spores, preventing disease from attacking and killing the leaves.

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About the Author

Bailey Shoemaker Richards is a writer from Ohio. She has contributed to numerous online and print publications, including "The North Central Review." Shoemaker Richards also edits for several independent literary journals and the Pink Fish Press publishing company. She holds a Bachelor of Arts in creative writing from Ohio University.