Plum Tree Losing Leaves: Why Is Plum Tree Dropping Leaves?

The reason why the leaves on your plum tree are turning yellow is because they have been affected by a disease called “plum tree drop” or “drop leaf”. You may not even realize it, but you are suffering from this disease. If left untreated, this disease will eventually kill your plum trees.

What is Plum Tree Drop Leaf Disease?

The disease known as “plum tree drop” or “drop leaf” affects plum trees. It causes the leaves on the trees to turn yellow and fall off. The disease is caused by a fungus that grows in the soil around the roots of the plants. When sunlight hits these infected roots, it damages them causing them to die. The fungus spreads through the air when birds carry infected seeds with them.

How Can I Prevent Plum Tree Drop Leaf Disease?

You can prevent this disease if you follow some simple steps:

1) Remove all dead branches and any diseased ones near the trunk.

These branches must be removed before new growth starts forming.

2) Keep your trees watered at least once a week during dry periods (usually between June and August).

3) Do not plant other types of plum trees near your infected ones.

4) Remove any diseased branches immediately.

5) When you prune the trees, disinfect your tools using a mixture of one part Household Bleach and nine parts water.

What Should I Do If My Tree Is Already Infected?

You can treat it with fungicide sprays and keep an eye on it. If the diseased leaves are removed early enough, the fungus can’t spread to other parts of the tree.

One thing you should never do is remove all of the diseased leaves from the tree. This will deprive it of valuable nutrients and it will eventually starve to death. Instead, try removing some of the infected leaves and leave at least some of the healthy ones on the tree.

Can I Do Anything To Prevent These Diseased Leaves From Falling Off The Tree?

The best thing you can do to prevent the diseased leaves from falling off is to leave some of the healthy ones on the tree.

If you have a small garden where your trees are located, it might be a good idea to fence it off. This way, birds won’t be able to carry infected seeds into your garden and infect your other plants.

What Other Types Of Diseases Can Affect My Plum Tree?

There are several other types of diseases that can affect your plum trees. One of the most common is called “brown rot”. This disease affects the fruit of your tree rather than the leaves. It causes the fruit to rot before it ripens. If you notice that your plums are rotting on the ground around the tree long before they should be ripe, you have brown rot. You can treat this disease using fungicide sprays.

Another common disease is called “halo blight”. This disease affects the leaves of your trees rather than the fruit. It causes yellow spots to form on the leaves and eventually the leaf will turn completely yellow and fall off. You can treat this disease by removing all of the diseased leaves as soon as you see the yellow spots forming on them.

How Do I Get Rid Of These Diseased Leaves?

You can remove these diseased leaves using your hands. Be sure to wear gloves when you do this because the fungus that causes this disease is very infectious to humans as well as plants. You should also remove the gloves you used afterwards and wash your hands with soap and water.

Another way of removing these leaves is to use a rake. This may be a better idea for larger trees, as it will be much quicker.

After you have removed all of the infected leaves, you may want to apply one more spray of fungicide just to make sure the disease doesn’t come back.

Can I Prevent These Diseases From Spreading?

Unfortunately, some of the most common ways that diseases spread are through birds and wind. There is not much you can do to prevent these two factors from spreading disease. However, there are some things you can do to slow the process down:

1) Fence your garden off using chicken wire or other types of fencing material.

Plum Tree Losing Leaves: Why Is Plum Tree Dropping Leaves at

This will keep birds from carrying infected materials into your garden.

2) Water your plants regularly.

This helps to disperse airborne diseases so they can’t land on all the leaves and start spreading.

3) Prune any diseased branches that you see on your trees.

This will help prevent the disease from spreading.


Pests can be a problem for gardeners, and this is even more true if you plant your garden in an area where there are lots of trees and bushes.



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