6 Causes Why Are Apple Tree Leaves Curling

why are apple tree leaves curling

Why are apple tree leaves curling? Apples taste delicious and a lot of people enjoy eating this kind of fruit. There are many varieties that you can actually see at the market.

Because of the lovely taste of apples, some people start growing apple trees in their homes. They buy some apple trees from nurseries and care for them. But there are times that problems happen just like having curing leaves on apple trees.

Why Are Apple Tree Leaves Curling?

Some of the causes why apple tree leaves curling are due to; watering problems, root damage, lacking sunlight, transplant shock, fertilization problems, pests, and diseases.

There are many angles to look for on the tree especially when you see some leaves on apple tree curling. Observing the apple tree regularly will help to figure out the problems that may attack the tree.

By keeping the tree healthy, some problems with leaves will be prevented and the chances of growing a lot of apples may happen.

Lacking Water

One reason why apple tree leaf curling is because of lacking water. When summer the weather becomes hot and the temperature increases, the apple tree needs more water during this period.

Too much heat can cause the leaves to curl. Enough water is important for apple trees. Losing leaves on apple trees will also be prevented especially when enough water is given to the tree.

You don’t need to water apple trees when rainfall is abundant. The rain is enough for trees to grow and thrive and giving water after it rains can cause overwatering which is not good for the apple tree.

Overwatering Can Cause Curling Leaves On An Apple Tree

Contrary to lacking water, overwatering can also cause curling leaves on an apple tree. The apple tree roots cannot handle too much water which can lead leaves to curl.

When giving water to apple trees, you need to check the soil first if still moist. Using your index finger, push it to the ground and see if the 2-4 inches of the soil is dry. If the soil is dry you need to water the tree.

Aside from using your finger, you can also use a screwdriver in checking the soil moisture. A screwdriver is a good tool for checking whether the soil is dry or still moist. Press the tool in the soil and if you feel that it is hard to push you to need to get your watering tools. The lifespan of apple trees will be in good condition if overwatering will be prevented.

Root damage may also happen because of overwatering. You need to keep the right watering to prevent excessive water to go to the tree. You will see good apple tree growth stages if the water will just be right for its size. Also, good waterways will prevent floods when a heavy rain comes.

Lacking Sunlight

If you are growing an apple tree in an open space where sunlight is abundant, then you will not have problems with curling leaves because of lacking sunlight.

Lacking sunlight can happen when there are big and tall trees nearby the area where the apple tree is planted. Trees nearby that have a big canopy will definitely block the sunlight away from your tree. The apple trees under the tree will be shaded by their leaves.

The sunlight is important for an apple tree to make its food. The apple tree’s cold tolerance is around 32 degrees Fahrenheit (0 degrees Celsius) which means that they can survive in cooler temperatures but it doesn’t mean that sunlight is not important so much for this tree. The apple tree must get 6 to 8 hours of light per day to grow excellent.

Transplant Shock

Another reason why apple tree leaves are curling is because of transplant shock. When you buy an apple tree from the nurseries and you do the transplant, there is a chance that transplant shock may happen.

You need to be careful in handling and doing this thing to make sure that your tree will stay healthy and growing. When you are transplanting apple seedlings, you must water them a few minutes prior to transferring the seedlings.

In that way, the soil will be softened and transplant shock on an apple tree will be lessened. Also after moving the seedlings you must water them again to help them establish more quickly.

If you see curling leaves after a few days, you just need to wait and monitor how the apple tree recovers. Don’t water it too much and also don’t apply fertilizer yet during that period.

Improper Fertilization

Applying fertilizer is good for an apple tree but when it is done not right, it may cause problems like curling leaves. Too much fertilizer can burn apple tree roots which can lead leaves to curl and some other problems.

You need to be careful in feeding your apple tree with nutrients especially if you are using chemical fertilizers. Some good fertilizers that you can use are 5-10-10 and 10,10,10.

Or if you are practicing organic gardening, then you can use organic fertilizers like compost. The nutrients will help the tree grow and also encourage the apple tree to produce more fruits. Also, when the soil is rich in nutrients it can help increase apple fruit size.

Pests And Diseases

There are pests and diseases that may cause apple tree curling leaves. Some of these pests and diseases are; aphids, Midges, Leaf rollers, Powdery Mildew, Apple Scab, and Fire Blight.

Controlling pests on an apple tree is needed to keep them healthy. There are gardeners who use neem oil and horticultural oil to keep apple tree pests free. Pesticides can also be used to control pests.

Diseases can also attack the apple tree and fungicides can be used to stop the damage. By keeping the apple tree healthy, curling leaves on the tree will be prevented.

Apple Tree Leaf Curl Spray

You can use horticultural oil as apple tree leaf curl spray. This will help as a treatment for the curl and prevent further damage to the leaves.

You must spray when the weather is not too hot because the spray may burn the leaves and the trunk. Do spraying when the sun is near to set or early in the morning.

It is great to know what are the causes why are apple tree leaves curling. Some reasons why the leaves on apple trees curl are because of watering problems, pests, diseases, lacking sunlight, improper fertilization, and transplant shock. You need to monitor the tree regularly to know what are the causes of the problem.