Light or Heat Source Damage > Identify, Control & Disease Prevention Tips

Light or Heat Source Damage

The increased temperature of the environment in which your plant grows can cause damage both during the day and at night. Heat stress can be understood as a situation where the ambient temperature of a plant is high for a period sufficient to cause irreversible damage to its life and development. Even the slightest increase in temperature can damage the growth and development of many plant species. Different types of plants can suffer from heatstroke differently, which means your maintenance efforts should be multiplied a bit during the summer.

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Signs of damage

Leaf rolling and cupping
Wilting
Dry leaf edges
Ozone damage
Blossom and fruit drop
Sunscald

How to prevent

Don’t water or mist the plants in the afternoon when the sun is active; it will cause leaf burns.
Resist the urge to remove partially dead leaves, and especially don't cut too hard. Leaves, dead or alive, will shade foliage that hasn't been burned, and those with some greenery will continue to photosynthesize.
Water generously.
Use drip or soak hoses for more efficient use of water; water is lost due to evaporation when the sprinkler is used.
Apply the mulch to a depth of 2 to 3 inches. Any organic matter will help retain soil moisture and even out soil temperature.
Create a shading for plants during the hottest days – for example, cover them with white fabric.

Heal

The main key to solving the problem with this disease is the presence of strong root systems in plants. This should help them prepare for the high temperatures that come with summer weather. It is important for gardeners to take preventive measures against heat stress. If your plants are in pots, move them indoors or to an area with shadow. Place temporary shading, such as shade clothing, over plants to keep them cool and block out the sun's rays. Deep water plants first only early in the morning and do not fertilize them during times of heat stress.

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