Normally this process is balanced, but if the roots absorb more water that the plant can evaporate, the root pressure becomes too high. This means that the water does not get enough time to evaporate, but will be immediately pressed out through the water pores hydathodes as a droplet. These are special water secretion glands at the leaf tips. Another cause may be too high air humidity. The saturated air then has insufficient capacity to absorb new water vapor. The water is then evacuated as a droplet rather than vapor.
Because the air humidity often rises at night, guttation often occurs in the early morning. Guttation is not harmful to the plant. The phenomenon protects the plant from excessive root pressure. However, with houseplants the phenomenon can lead to annoying stains on the floor. Honeydew: a sticky liquid excreted by lice. The liquid is situated over the whole plant rather than only the leaf tips. Helpful and understandable.
Thank you. I have a different question. I have had for three or four years two Amaryllis which have flowered consistently. This year they have out done themselves. One flowered three times and has produced three offshoots. The bulbs are half the size of the parent. But the parents have tiny red spots or blotches throughout the leaves. Is there alternative solution please. They look healthy in all other respects. And can I do anything to prevent these new bulbs leaves from being contaminated?
A long comment. My apologies. First, do make sure it really is red blotch disease a fungus. Light physical damage to amaryllis leaves can result in red marks and that is, of course, not a disease and new growth will come up healthy. If new growth always comes up with red markings and is weak and unhealthy, it probably is the fungus and the only logical solution is to dispose of the infected bulbs.
Thank you for replying so quickly. I will go with your first suggestion as the offshoots do look really healthy. Despite having the little red dots on the leaves. Light physical damage? Cut back on watering and your plant should stop releasing sap.
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