We all know that apples are quintal fruits – and while they are easy to grow, they are not without their fair share of problems.
Among these problems are diseases, some of which can be fatal. If you want to keep your trees healthy and productive, watch for these 8 most common apple tree diseases.
- 1 8 Most Common Apple Tree Diseases
- 2 What does a sick apple tree look like?
- 3 Keep Your Apple Tree Healthy: Basic Preventive Tips
8 Most Common Apple Tree Diseases
Apple trees are vulnerable to many diseases including fire defects, crusts, rust, and more. These apple tree diseases can be difficult to identify because they all have different symptoms.
The best way to know if the work you are doing is by going to a local orchard or nursery, where specialists can take samples and diagnose your tree problem for you. However, it can also help to know for yourself some of the signs and symptoms of most common diseases.
Here are the ones to watch out for.
1. Sooty Blot and Flyspec
Although soot bloat and flyspec are technically two diseases (with many types of organisms occurring simultaneously as one disease), the two issues always appear together. Symptoms first occur in late summer or early fall, unfortunately as your apples are ready to harvest.
To get rid of this disease, you will need to grow your plants heavy and thin. It is more common in moderate temperatures with high humidity. The good news about soot spots and flyspec, which causes dark black spots that look like soot with individual shocks that look like flies, is that it is purely cosmetic. It will not affect the taste of your fruits.
However, it can reduce their shelf life – something to consider if you plan to keep your apples in storage for a long time.
2. Bitter Rot
Bitter rot is an apple disease that causes large, nonviable lesions that spread to thickened circles all the way to the root of the fruit.
It is most common in summer when the condition is hot and wet. You may notice a sour smell emanating from the rotten spots. Good hygiene is necessary to control the disease, but once it is established, the only way to get rid of it (and prevent it from spreading to other plants) is to remove diseased fruits.
3. Fire Blight
Agni Dosha is one of the few bacterial diseases that commonly affect apple trees (many are fungal). The branches die back and canker develops due to the disease and can cause it to fade and die.
because of Erwinia Amilovora, This bacterial disease is most common in plant tissues that are fresh and young. Avoid excessive fertilization with nitrogen and do not after or during the bloom period. This is because it is when the pests are most likely to feed and these feeding activities can spread the disease.
If you notice any tissue that is “staining”, remove it immediately. Between cuts, while pruning, disinfect your equipment with bleach.
4. Black Rot
Black rot appears as brown, bruising wounds, with bitter rot. However, they begin at the calyx end (bottom) of the fruit.
It can occur on both pear and apple and is most common in the southeastern US. It can also cause symptoms on the leaves, where “Fudge“There are spots. Push down any dead wood and remove debris lying around.
5. Cedar Apple Rust
As the name itself suggests, the rust of cedar apple has rust-like wounds on the leaves, which is very easy to identify. Unfortunately, rust of cedar apple can cause complete discoloration of a tree.
To prevent this disease, due to the pathogen Gymnosporangium juniper-virginine, You need to apply resistant varieties (some good choices are Red Delicious, Arkansas Black, McIntosh and Spartan). If you notice this problem, remove the infection from nearby cedar trees, as cedar and apple trees need to breed in this disease.
Of course, if you have the option, do not plant apple trees near cedar to begin with. Hosts of both species are required to replicate this pathogen.
6. White Rot
White rot is often considered as a disease that mainly affects garlic and onions (as well as other plants in the Allium family) but it can also go after apples.
Referred to as “bot rot” or Botriospharia rot, The disease is caused by a fungus. This can create severe canker on tree limbs and other woody bits. It is most severe in trees that have already been weakened by factors such as winter weather, drought, sunscreen, improper pruning, poor nutrition and disease.
Some apple types are less likely to be affected by white rot, such as Red Delicious and Jonathan. However, there are some types more Exaggerated, including pale translucent, Galila Beauty, Rome and Golden Delicious.
Ensuring proper hygiene is the easiest way to prevent white rot and bring it under control. Remove any piles of pruning that are left around the trees to remove their cankers. You can use fungicide but it is not always effective, especially when the tree has progressed to more severe canker stages.
7. Powder Mildew
Unless you are fairly new to gardening, powdery mildew is a disease you may have heard a lot about. The disease is a fungus that first appears in the spring as a delay in the opening of an infected flower.
Later, you can see that the buds are covered with a white or light brown powder – these are the spores of the fungus. You will find that the flowers do not develop normally and produce very little without fruit.
The good news is that yellow mold rarely kills an apple tree. The bad news is that it is caused by warm temperatures and high relative humidity. Since it is practically impossible to control temperature and humidity, you will probably have to use a fungicide to get rid of this problem.
8. Apple Peel
Apple scab is a disease caused by a sacred fungus that is known Venturia inequality – It sounds as unpleasant as it actually is. This fungus is endemic to Central Asia but is now found everywhere in the world in which apple is grown.
It can affect many types of plants but is most common on apple trees – even on wild crab-apples.
The good news about apple crust is that it rarely kills a tree directly, but it can weaken them so much that it makes them more likely to develop other diseases.
Not only can it cause premature leaves to drop, but it can also grow trees that are not fit for human consumption.
It spreads more easily in wet climates, like most fungal diseases. Therefore, proper environmental control like adequate spacing between trees (and cleaning plants and debris around your trees) can help prevent this problem. Once an apple crust has reared its ugly head, you can often control it through fungicides and vigorous pruning to increase exposure to sun and wind.
Of course, there are many apple roughness resistant fungi that you can grow as well.
What does a sick apple tree look like?
If you are new to apple growing trees, you may be unsure whether the symptoms your tree is exhibiting are unusual – or just a normal stage of their growth.
Generally, any type of leaf fall or discoloration is an indication that something is common. The presence of wounds on leaves or cankers on woody growth is also an indication that your tree may be sick.
Of course, you may also have fruits that rot before they mature.
Some of these symptoms of diseases can also be signs of an insect infection, so it is always worth getting out of an insect pest before applying disease treatment.
Keep Your Apple Tree Healthy: Basic Preventive Tips
The good news about the diseases of the mango apple tree is that most are purely cosmetic. If you are not planning to sell your fruits, you can often use them for things like jams, jellies, and baking.
However, keeping your apple trees healthy by following basic prevention tips is always the best way to prevent disease. Use regular use of fertilizer and make sure to prune. Proper location and keeping the area around your apple trees clean and free of debris is another great way to ensure success.
The apple tree is one of the most popular trees in North America. To ensure that your tree can grow and flower, it is important to watch for common diseases that commonly affect apple trees. By knowing how to see and apply the preventive tips listed above, you can keep your garden healthy and productive.
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