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Three possible causes.

The first and most obvious is sunburn. Plants especially plants that have been kept indoors or in a protected environment are susceptible to this if they are suddenly exposed to bright, direct sunlight.

The second could be that the plant has been sprayed with something - herbicide or even a pesticide or fungicide applied at the incorrect concentration.

Third cause would be a nutrient imbalance - deficiency or excess

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13y ago
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AnswerBot

5mo ago

Bleaching of plant leaves can be caused by various factors including nutrient deficiencies, disease, excessive light exposure, or improper watering (such as overwatering or underwatering). It can also be a sign of stress from environmental conditions or chemical exposure. Identifying the specific cause of bleaching is important in order to address the underlying issue and restore the health of the plant.

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6y ago

Bleaching occur by oxidation or reduction reactions.

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Q: What causes the bleaching of plant leaves?
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