It is very common for some plant leaves to turn brown. The spots can appear on the edges and tips, but also in the center of the sheet and spread until they cover the entire surface. Also the petals of the flowers can be affected on some occasions. At EcologíaVerde, we explain why do brown spots appear on plants
Causes of brown spots on plants
In principle, brown spots are synonymous with wiltingbut the causes that produce them can be diverse. the drought it is perhaps the most common; when a plant does not have enough water and withers and the first symptom is the appearance of brown spots that cover the entire leaf, until it dries up, falls to the ground or breaks as soon as it is touched. But also the scorched (excess heat)frost and some fungi can cause the appearance of brown spots.
excess heat
The burning produces brown spots on leaves, which are wrinkled. This phenomenon takes place when the sun’s rays are very strong. The effect is doubled if the leaves are wet.
Very high temperatures in a closed environment such as a greenhouse or at home can also cause the appearance of brown spots, which appear on the ends and edges, and spread over time. You have to provide proper ventilation to closed places and use thin curtains or blinds to prevent the direct rays of the sun from entering, as well as to keep the plants away from the crystals, to prevent them from being scorched. It is not convenient to water or spray a plant from above and even less so in the sun, to prevent the drops of water that remain on it from acting as magnifying glasses and causing burning.
Low temperatures and frost
Low temperatures and frost can cause, especially in seedlings, brown areas. Also, persistent foliage may turn brown. Sensitive species need to be protected as soon as the temperature starts to drop. The very strong gusts of air wither the leaves and produce their browning. The windbreaker They will provide effective protection.
dry environment
The brittle, brown tips that can be observed in some indoor species reflect a lack of water, but can also be a symptom of an atmosphere that is too dry.
In these cases, an increase in irrigation is imposed, not in the amount of water, but in the frequency, as well as a higher ambient humiditythrough spraying on the foliage or by placing a bowl of water and pebbles or a humidifier nearby.
Continuous friction, if the plant is in a transit area, and cold air currents as well, can cause the appearance of brown spots. The species should be moved away from the windows when the house is going to be ventilated and not placed in a frequent place of passage, where their foliage is brushed.
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