Oleander Leaf Scorch Symptoms – What Causes Leaf Scorch On Oleander?

The symptoms of oleander leaf scorch are not just due to the burning sensation on your fingers. There are other causes which cause similar symptoms. So, it is necessary to understand what exactly causes these symptoms.

In order to get rid of the symptoms, one must first know what actually causes them. Let’s start with the most common ones:

Burning Feeling on Your Finger When You Touch Oolong Tea Leaves

It is not only the burning feeling on your finger when you touch oolong tea leaves that causes the symptoms. It is also caused by the oxidation of the tea leaves. Oxidation means that certain compounds in the tea leaves react with oxygen to form carbon dioxide gas.

Carbon dioxide gas then reacts with water vapor in air to create a tiny flame. That small flame burns your fingertips!

Oxidization of Tea Leaves Caused By Burning Feel on Your Fingers

What Causes Oxidation?

There are many causes that can trigger the oxidation of tea leaves. First of all, when you expose the tea leaves to oxygen outside environment, the process of oxidation starts. In normal circumstances, the carbon dioxide gas is very less. When tea leaves interact with oxygen in air, the amount of carbon dioxide gas increases. This causes tea leaves to heat up a tiny bit. It is simply because when there is a lot of carbon dioxide gas around the burning point of the compound increases. In turn, this causes tea leaves to heat up.

When you touch the tea leaves with your fingers, it starts a chain reaction. The temperature of your fingertips is lower than the temperature of the hot tea leaves. In an effort to conserve energy, your skin starts releasing the moisture in it.

But as you know, water and oil do not mix. As such, the moisture in your skin does not evaporate. Instead, it forms a layer of steam around your fingertips. If you keep this up for a long time, the moisture in your fingers turn into steam.

When you remove your hand from the tea leaves, the steam rushes back into your hand. This sudden increase in pressure causes a tiny explosion at the surface of your skin. It is similar to what happens when you apply ointment on a burn and it feels cool for a moment.

Then suddenly you feel an intense burning sensation shortly after. You can relate the two, if you have experienced such an incident.

Moisture Or Water On Your Fingers Is The Main Cause Of The Symptoms

How To Avoid It?

The steps that you need to take in order to avoid these symptoms are quite simple. They involve using knowledge of oleander leaf scorch uk:

Use Dry Hands: It is best to use hands with low moisture content when you handle tea leaves. Utilizing the oleander leaf scorch solution, you can keep the moisture content under 5%. If the moisture content in your skin is low, it does not have enough water to turn into steam.

Oleander Leaf Scorch Symptoms – What Causes Leaf Scorch On Oleander from our website

As such, your skin does not get burned.

Don’t Hold The Leaves For Long: Another thing that you can do to avoid these symptoms is to hold the dry leaves for as short a time as possible. If you hold the tea leaves for a long time in your hand, the moisture in your hand can turn into steam. This is because you are exposing your hands to heat for a long time.

As you know, heat speeds up the chemical reactions. The reaction in this case is oxidation. With more reactions taking place, more carbon dioxide gas is released. When this gas comes into contact with your wet skin, it causes it to burn.

Use Gloves: The safest way to handle hot tea leaves is to use a glove on your hand. Any glove made of fabric or paper will work just fine. However, I would not suggest using a protective glove made of rubber or plastic.

Such gloves do not allow your skin to “breathe”. This means that your hands are likely to get sweaty when you work with them. Sweaty hands are more likely to get burned when exposed to heat.

Use A Tongs: Another way to pick up the hot tea leaves is to use the tongs. Remember, the ideal way of holding the tea leaves is with bare hands. But if you cannot do that, then you should use tongs or other tools designed for picking up hot objects.

This helps you avoid getting burnt because you won’t be directly touching the tea leaves.

Do Not Sit With Your Hands In The Air: If you don’t want to get burnt, then make sure that you do not put your hands in the air. The heat will rise up and burn your hands. You need to be extra careful if there is a draft blowing from below.

This causes the air near the floor to become significantly hotter than the rest of the room. The ideal temperature range for working is between 300C and 400C. Any hotter than that and your hands start to get burned.

Do Not Hold The Sides Of The Teapot: Lastly, you need to make sure that you do not hold the side of the teapot. As you know, the tea will be very hot when it first comes out of the teapot. You may think that you can avoid getting burnt by holding the sides of the pot.

But, the bottom of the pot is likely to be significantly hotter than the sides. The pot may even have a hot handle that can burn your hand. As such, avoid holding any part of the teapot that comes into contact with the tea. You should also not hold the lid of the teapot when you open it.

Take Care Of Your Skin: Lastly, always remember to take care of your skin. If you get a burn, there are several things that you can do to treat it. You can use a simple first aid burn treatment if the burn is relatively mild.

There are also various over the counter creams and lotions that you can put on your skin after a burn. This helps your skin heal faster. Just make sure that you always handle hot objects with care and you will avoid getting burnt.

Sources & references used in this article:

Causal Role of Xylella fastidiosa in Oleander Leaf Scorch Disease by AH Purcell, SR Saunders, M Hendson… – …, 1999 – Am Phytopath Society

Identification of DNA sequences related to Xylella fastidiosa in oleander, almond and olive trees exhibiting leaf scorch symptoms in Apulia (Southern Italy). by M Saponari, D Boscia, F Nigro, GP Martelli – Journal of Plant …, 2013 – cabdirect.org

Effect of Selected Insecticides on Homalodisca coagulata (Homoptera: Cicadellidae) and Transmission of Oleander Leaf Scorch in a Greenhouse Study by JA Bethke, MJ Blua, RA Redak – Journal of economic …, 2001 – academic.oup.com

First Report of Oleander Leaf Scorch Caused by Xylella fastidiosa in Texas by Q Huang, RH Brlansky, L Barnes, W Li… – Plant …, 2004 – Am Phytopath Society

A TaqMan-based real time PCR assay for specific detection and quantification of Xylella fastidiosa strains causing bacterial leaf scorch in oleander by W Guan, J Shao, R Singh, RE Davis, T Zhao… – Journal of …, 2013 – Elsevier

First Report of Oleander Leaf Scorch Caused by Xylella fastidiosa in Florida by RL Wichman, DL Hopkins, TA Wichman – Plant disease, 2000 – Am Phytopath Society

Specific Detection and Identification of Xylella fastidiosa Strains Causing Oleander Leaf Scorch Using Polymerase Chain Reaction by Q Huang – Current microbiology, 2009 – Springer



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