Lemon Tree Diseases – And How To Cure Them!

Caring for a lemon tree is not a complicated task, however, it is very easy for it to get sick from any neglect or failure (whether by pests, lemon tree fungi or any other parasite). The consequences of these diseases can be serious and can even end the life of your tree.

Have you seen that your lemon tree has wrinkled leaves? It can be a sign to consider, since among the most common symptoms that the lemon tree presents when it is contaminated by a plague are wrinkled or rolled leaves.

If you wonder why this problem is due, you should know that the wrinkled or curled leaves in the lemon tree are caused by a miner insect or by a miner moth. These cause the leaves to turn brown and progressively wrinkle, eventually withering and falling.

But do not give up, because as with many other diseases of the lemon tree, wrinkled leaves have a solution. What you should do to combat this disease is to apply directly to the leaves neem oil in the form of an atomizer. You can fill a spray bottle with this oil and generously spray your tree, as it is an excellent ally in the treatment of pests.

If you have this tree at home, you may want to take a look at the following article on How to care for a lemon tree.

When talking about lemon tree diseases, yellow leaves are often mentioned, as it is a symptom that is impossible to ignore. Yellow leaves on the lemon tree they can be caused by two reasons: either it is a symptom of a lack of nutrients in the tree, or it is a sign that there is a plague or fungus in the lemon tree. In the next section we will inform you of how to disinfect your tree depending on the pest that has attacked it, but let’s first look at the diseases that can cause this yellowish color:

• Chlorosis: disease that appears due to the lack of chlorophyll in the leaves.
• Dwarfism: in addition to turning yellowish, when there is dwarfism the leaves stop growing. The main cause of dwarfism is the lack of good nutrients in the tree.
• Necrosis: this is perhaps the most serious disease, since it entails the certain death of the plant. This disease occurs due to the excess of salts and fungicides applied to the tree.

From unCOMO we want to tell you that if the lemon tree is constantly cared for and monitored, it is possible to prevent these diseases. To do this, follow the recommendations that we propose below:

• The lemon tree must be watered constantly, but without abusing the amount of water supplied. Do not flood the tree, as the objective is that it receives only the nutrients it needs.
• Apply fertilizers that contain micronutrients periodically. Some of the micronutrients it should contain are iron, copper, magnesium, zinc, and boron.
• Similarly, make sure your fertilizer contains macronutrients such as sulfur, potassium, phosphorus, nitrogen, and calcium.
• Prune the tree at least once a year to remove possibly fungal-contaminated branches from the lemon tree, as well as wilted, yellow leaves that indicate disease. In this way, you will guarantee your tree the birth of new branches that will contain new healthy fruits.
• When thinking about growing or transplanting a lemon tree, make sure it has at least five hours of sunlight a day.

The fumigation of a lemon tree can be carried out at two different decisive moments: the first can be done after pruning the lemon tree (since with this fumigation it is possible to avoid future contamination by pests) and the second when some fungi and insects are detected. since these can cause the deterioration of the plant. If your tree suffers from a common fungal infestation, we recommend that you take the following steps:

1. Prune the lemon tree as usual.
2. Once you’re done, proceed to fill a spray bottle with a fungicide. You can make your own natural homemade fungicide or purchase a chemical fungicide for fruit trees. From UNCOMO we recommend that you mix 5-6 ml of the pesticide in your container full of water.
3. Once the mixture is made, you will have to spray the leaves of the tree on both sides.
4. Rub each of the leaves with your hands so that the insecticide penetrates well.
5. It is important that every time you prune the lemon tree and spray it, you also proceed to fertilize it. For this you can use compost, worm humus or special fertilizers for citrus fruits.

If you decide to make your own natural fungicide, don’t miss the following article on How to make a homemade fungicide. In addition, I have a HOW WE advise you to carry out this fumigation twice, allowing 7 days between one fumigation and another for a better result.

Now, when fumigating your lemon tree you should also take into account the diseases that it has contracted, because depending on each of them you will have to use one product or another. Next we will talk about the more common diseases lemon tree and how to treat them:

• If your tree has been attacked by the aphid, you must use acetamiprid, pymetrozine or pirimicard to end this plague. You can find these insecticides in different specialized stores. This article on How to eliminate lemon aphid will help you carry out each step accurately.
• We also find within the diseases of the lemon tree corrugated mealybug. If this pest attacks your tree, we recommend that you avoid the use of insecticides, since these could uselessly end up with a great diversity of insects that are not dangerous for the lemon tree. In this case, we advise you to make use of a biological control by inserting the Rodolia cardinalis, a beetle often used to control citrus pests. In a matter of weeks, the mealybug will be gone from your tree.
• Another common insect that can infect your lemon tree are the miners, some larvae that live inside the leaves of your tree and leave a whitish or brownish trail on them. To combat this pest, we recommend the use of neem oil, because with only 4 ml of this product per liter of water that you use during irrigation will be enough. However, you can also opt for other species that feed on these pests: spiders, lacewings, orius, etc.
• Finally, you should know that spider or red mites they must be exterminated using a fumigation with mineral oil, clofentezin, dicofol, ethoxazole or fenazaquin among others.

We show you some images of lemon tree diseases so that you take into account the appearance of these pests.

Here we explain how to prepare a homemade fungicide based on copper sulfate to effectively and quickly eliminate any pest. This fungicide, called Bordeaux mixture, is not difficult to prepare, so follow the step by step that we propose below to obtain great results. These are the ingredients you will need:

• 10 grams of copper sulfate: You can buy it at hardware stores or pool supply stores.
• 10 grams of common lime: you can find them, mainly, in hardware stores.
• 1 liter of water.

Now follow this step by step:

1. In a quarter of a liter of water you will have to add about 2.5 ml of copper sulfate and 5 ml of lime. Mix well to dissolve the minerals.
2. In another container, pour the rest of the water and add the remaining lime.
3. Pour the lime water into a bucket. It is recommended to strain the lime with a cloth to prevent dirt or sand residues from passing through.
4. Pour half the quart of water prepared with copper sulfate and lime into the bucket.
5. For this type of homemade preparation, the pH of the mixture must be carefully measured. You should try to get the result to 7, otherwise it could damage the plant.
6. If the pH is above 7, you will have to pour the rest of the mixture into the final mix. If the pH does not reach 7, you will only have to add a little more lime.
7. Once you have prepared the Bordeaux mixture, mix 50% of this fungicide with 50% of water.
8. This homemade fungicide must be applied within three hours of its preparation, as afterwards it begins to lose its adhesion properties to the leaves.
9. You will have to apply the mixture …