Sunscald On Citrus Trees: How To Deal With Sunburnt Citrus Plants

by johnah on October 28, 2020

Sunburn On Citrus Leaves: How To Deal With Sunburnt Citrus Plants

The most common form of sunburn on citrus leaves is called “sun burn” or “sunstroke”. If the affected area becomes red, hot and swollen with pus, it’s known as a sun stroke. The other type of sunburn is called “solar burn”, which means burning when exposed to direct sunlight. Solar burns are usually caused by strong UV rays.

When you’re outdoors during the day, your skin is protected by clothing made of lightweight materials such as cotton or linen. However, if you spend time inside at night, your body temperature drops and your clothes become less effective in protecting you from the sun’s harmful rays. Even if they aren’t burned off immediately, their moisture evaporates and turns into sweat which causes them to feel damp and uncomfortable even after being dry washed.

If you’ve ever experienced sunburn on your hands while washing them, then you’ll understand what I’m talking about. When the water evaporates from your skin, it drips onto the washbasin and gets absorbed into the fabric. Your fingers will continue to get hotter until they blister and turn black (or purple) within minutes! That’s why you’re advised to wear protective gloves when washing dishes.

The same is true for clothing, which can potentially reach temperatures that are hot enough to burn your skin. It’s important to keep this in mind if you have sensitive skin. If you suffer from erythema (sunburn), you should avoid washing clothes yourself or doing any kind of manual labor on sunny days. If your clothes are already wet, make sure you change out of them before they dry.

However, there are also clothes that are specifically designed to protect your skin from the sun. For example, there’s a kind of fabric made from special minerals (like titanium) that reflect sunlight and keep your body temperature at a safe level. There used to be a time when people used to protect their bodies with kilts or skirts made of this material, but now they’re mostly used for formal wear.

You can also find skin-friendly clothes in your local department store. You’ve probably seen people walking around in “long-sleeves” and “long-pants”, even in the summer. That’s because they’re likely to suffer from erythema or some other skin disease that makes them sensitive to sunlight. The protection provided by these clothes is limited, but it’s enough to keep the average person safe from sunburn.

You can even find “sunscreen” lotion with an SPF rating of 30 or higher to protect your skin from the sun’s rays.

So, if you’re having a BBQ party or going to the beach, it might be a good idea to throw on a pair of swimming trunks or a one-piece swimsuit to protect your skin. If you don’t normally wear sunscreen, you should consider it. You’d be surprised at how long you can spend in the sun without even realizing it and a minor burn can turn into a painful, blistering nightmare if you’re not careful.

Happy summer!

Yours truly,

Anna K


Dear reader,

I am writing to you from the city of Nuro, the City of Night. It is said that the darkness here goes beyond what the human mind can comprehend. I have never been outside this city, so I cannot say if this is true or not.

The government here is cautious but pragmatic. The law states that after nightfall, all citizens must be in their homes and all doors and windows must be shut and locked. There is much talk of a “New Order” in the council, but if it comes it does not affect me.

I am what you would call a “night-shift worker”. I get up in the daytime, when everyone else is sleeping, and work. At night, I sleep. It is a quiet life.

The only time there is any action is when an alarm goes off. I will now tell you about the alarms.

In the City of Nuro, there are a set of alarm towers located at the edge of the city. They look like giant eye sockets from some giant creature. At the top of these eyes are lamps that are lit to help prevent citizens from getting lost when they travel at night, or to help guard patrols see criminals or monsters in the darkness. The eyes also double as alarm systems.

If a criminal or monster enters the range of the eye, the light will turn red and blink, warning everyone in the city that something is entering the city. If this happens, all citizens must retreat inside and lock their doors until sunrise, when the alarm automatically shuts off.

I do not remember the first time the alarm went off. I was already born when it happened. It has happened several times since. The creatures that lurk in the darkness are cunning and deadly.

They will take any chance they can get to enter the city. Fortunately, the eyes are quite effective. I do not think any of the creatures have gotten into the city since the eyes were put up.

I wish I could describe these creatures to you, so you could experience the horror that we have had to deal with. I wish I could, but I am powerless in that regard. You would need the mind of a true artist to do the creatures justice. I am nothing of the sort.

The best I could do is tell you about the screams. The horrible screams we hear, but the sound does not carry at night. The screams of terror, pain, and death. If you could hear them as I have, you too would wish for the salvation of night to cover this land once more.

I wish you good luck in the coming darkness. May your deity shine his light upon you and protect you from the creatures of the night.

You have received the ville of Landrin’ s Compendium.

This book is a collection of artwork by the renowned artist Landrin.

You have gained the achievement ‘Voyeur’.

You flip through the book and look at some of the paintings. They’re rather interesting, as expected.

This book will take up a slot in your backpack.

You’ve earned 500 experience points for your work.

Sources & references used in this article:

Citrus fruit: biology, technology and evaluation by M Ladanyia, M Ladaniya – 2010 –

The effects of preharvest shading and postharvest storage temperatures on the quality of ‘Ponkan'(Citrus reticulata Blanco) mandarin fruits by TC Lee, PJ Zhong, PT Chang – Scientia Horticulturae, 2015 – Elsevier

Effect of foliar spraying of some materials on protecting Murcott mandarin fruits from sunburn injuries by HM Mohamed, MAA Omran, SM Mohamed – Middle East J, 2019 –

Stress tolerance and stress-induced injury in crop plants measured by chlorophyll fluorescence in vivo: chilling, freezing, ice cover, heat, and high light by RM Smillie, SE Hetherington – Plant Physiology, 1983 – Am Soc Plant Biol

Effect of quality and intensity of solar radiation on injury of lemon fruit by sulphur treatment in the field by FM Turrell, AM Boyce – Plant physiology, 1953 –

Particle films: a new technology for agriculture by DM Glenn, GJ Puterka – Horticultural reviews, 2005 –

Sunscald and ultraviolet light injury of banana fruits by NL Wade, EE Kavanagh, SC Tan – Journal of horticultural science, 1993 – Taylor & Francis

Topworking Citrus and Other Trees by HF Tate – 1954 –



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