Apple Tree Losing Leaves In Summer

The apple tree is a beautiful sight. It is tall and strong, with branches that seem to reach the sky. The leaves are a deep green, and the apples are a bright red. The apple tree is a symbol of strength and beauty. The leaves are deep green, and the blossoms are a delicate white. The fruit is a deep red and is a sight to behold. The trees are a symbol of summer and of the bounty that the season has to offer.

Losing Leaves in Summer

As the days grow warmer and the nights grow shorter, the leaves on apple trees begin to change color. In early summer, the leaves are a deep, rich green, but as the season progresses, they gradually turn yellow, brown, and finally drop off the tree in the autumn.

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This process of losing leaves is called abscission, and it helps the tree conserve water and energy during the hot, dry summer months. Without its leaves, the tree is better able to withstand the heat and drought, and it can focus its energy on producing fruit.

The shedding of apple tree leaves is a natural process that helps the tree get rid of old, damaged leaves and make room for new growth. This process is essential for the tree’s health and vitality and helps ensure that it can continue producing healthy fruit each year. While the shedding of leaves may seem simple, it is a complex process vital for the tree’s health and wellbeing.

However too much leaf loss needs a deeper investigation

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Why Do Apple Trees Loose leaves?

Apple trees loose leaves in the summer for a variety of reasons. Here are some of them. 

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Water Loss

One reason is that the trees are trying to conserve water. Since leaves are responsible for a lot of the tree’s water loss, shedding them helps the tree stay hydrated. During the summer months, apple trees can loose leaves due to water loss. This happens when the tree doesn’t have enough water to support all of its leaves, so it sheds some of them to conserve moisture. If you notice your apple tree losing leaves, give it extra water. This will help it to stay healthy and prevent further leaf loss.

Heat Stress

Another reason is that the hot summer sun can damage leaves, so shedding them helps protect the tree from heat stress. Apple trees loose their leaves in the summer due to the sun. The sun’s heat dries out the leaves, causing them to turn brown and fall off. This is a natural process that helps the tree to conserve water and protect itself from the heat. This process may eventually kill the tree so one way to fix this is to water the tree and give it a deep soaking!

Lack of Nutrients

An apple tree losing leaves in summer is a common occurrence and is usually due to a lack of nutrients. The tree may not get enough water, or the soil may lack essential nutrients. Either way, the tree will likely suffer from a lack of growth and produce fewer apples. In some cases, the tree may even die. Feed in late winter or early spring with a high potassium feed that also includes nitrogen.

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Transplant Shock

When transplanting apple trees, it is essential to be aware of transplant shock. This condition can occur when a tree is moved from one location to another, resulting in stress on the tree. Transplant shock can manifest in several ways, including leaf scorch, wilting, and dieback. In severe cases, transplant shock can kill a tree.

There are several factors that several factors can contribute to transplant shock, including improper transplanting techniques, damage to roots during transplanting, and planting the tree in the wrong location. To avoid transplant shock, it is essential to use proper transplanting techniques, prevent damage to roots, and choose a suitable site for the tree.

Pests And Diseases That Cause Leaf Loss

Apple trees are susceptible to several diseases in summer, including apple scabs, powdery mildew, Cedar Apple Rust, and fire blight

Apple Scab

Apple scab is a fungal disease that causes brown spots on the leaves and fruit of the tree. Powdery mildew is another fungal disease that manifests as a white finesatisfactory growth on the leaves and fruit of the tree. 

Fire Blight

Fire blight is a bacterial disease that causes the leaves and fruit of the tree to blacken and wilt. These diseases can significantly reduce the tree’s yield and should be treated as soon as possible.

Cedar Apple Rust

Cedar-apple rust is a fungal disease affecting both cedar and apple trees. The condition is caused by a fungus called Gymnosporangium juniper-Virginiana, which spends part of its life cycle on cedar trees and part of its life cycle on apple trees. Cedar-apple rust can cause extensive damage to both types of trees.

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In the spring, the fungus produces orange-brown galls on cedar trees. These galls break open in the summer, releasing spores carried by the wind to apple trees. The spores infect the apple leaves, causing them to develop orange-brown lesions. The fungus also causes the apple fruits to create small brown spots.

Cedar-apple rust can cause severe damage to both cedar and apple trees. Infected cedar trees can develop extensive galls, and infected apple trees can loose their leaves and produce deformed fruit.


The full moon in June can also cause a surge in insect populations, and dry weather can cause the leaves to rot and fall off. Apple trees are very susceptible to various diseases and pests, so it’s essential to have a well-protected tree from these problems.

2 thoughts on “Apple Tree Losing Leaves In Summer”

  1. I have two pear trees and 4 apple trees. Last year all the leaves fell off the apple trees in the summer except for the leaves at the top of the trees. The pear trees were not affected. This year the same thing happened. The apple trees got all their leaves but they all fell off in the summer. This web site presents a lot of plausible reasons why this may be happening but doesn’t tell me how to isolate the cause or how to fix it.

    • Hi Dennis thanks for your comment. Am I ok to email you as I have a few questions as this is very interesting and I want to help you fix this problem.


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