What Are Plant Heat Stress Symptoms?

With high summer temperatures, people begin to wilt. So do trees. In fact, trees can get heat stress that not only makes them appear bad, but also makes them more vulnerable to diseases and insects. As a tree owner, it is imperative that you know how to detect plant heat stress symptoms.
Below are some signs of heat stress in trees and some advice on how to safeguard them during severe summer heat.

Heat Stress in Trees

Heat stress occurs when a tree loses water quicker than it can replace it. Trees take in water from the soil through their roots and from the air through limbs, leaves, and trunks. That water is transported throughout the tree and then evaporated into the air via a process named transpiration.

While this method typically works well to sustain a healthy and hydrated tree, high heat puts transpiration into overdrive, making the tree rapidly lose more water.  

Signs of Heat Stress in Trees

Many symptoms of heat stress look like signs of drought or disease. So, if you’re uncertain, it’s suggested you contact an experienced tree care professional.

How to Protect Your Trees in Summer

The best thing you can do for your trees is to make sure they’re receiving the correct amount of water. Using drip irrigation, a soaker hose or a garden hose on a low flow, water deeply into the earth.

Be sure to water at the drip line, not close to the tree trunk. This is where you need to water to be sure that the whole root system gets the water it needs.

Although summer isn’t the time to do major trimming on your trees, you should get rid of dying or dead limbs. This will help stop infestation by wood-boring insects that could further stress the tree.

Keep watch on any trees showing heat stress symptoms. As temperatures cool, the leaves should perk up. If they don’t, be certain you’re delivering the correct amount of water, then it’s most likely time to reach out to a tree care professional at Hickory Tree Services for an evaluation.

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