Latest Treatment Methods for Twig Blight on the Peace Lily Tree

The peace lily tree is a foliage-type evergreen small tree, mostly grown in pots for ornamental purposes or to beautify the environment; it can also improve indoor air quality and carries an auspicious meaning, which is why it is so popular among potted plant enthusiasts. However, the peace lily tree is quite prone to twig blight, and since the peace lily tree is also called cinnamon, this disease is usually also known as cinnamon blight, a highly destructive disease.

Twig blight is usually a disease caused by fungal infection of the plant. When a peace lily tree is attacked by twig blight, the direct symptom is that the branches and leaves easily dry out and turn black, affecting its ornamental value in mild cases and possibly killing the plant in severe cases. This condition in the peace lily tree is mainly caused by overwatering, poor permeability in the pot, and an environment that is too hot and humid with poor ventilation.

First, we need to move the plant outdoors to a relatively bright, well-ventilated spot, and then cut off the infected parts. When pruning, be sure to cut off all the dried and blackened parts of the branches. The cut should be kept about 5 cm away from the infected area, cutting off the infected upper part of the branch so that the wound shows fresh, healthy tissue.

But if we do only this, some infected parts may inevitably be missed, and twig blight may still continue to infect and spread. Therefore, we also need to use fungicides such as carbendazim, thiophanate-methyl, and chlorothalonil for further sterilization and disinfection. Dilute them with water according to the instructions, then pour the solution directly onto the roots. Generally, applying it once a week for 2-3 consecutive times is enough to clear out the harmful pathogens.

Of course, since the potted peace lily tree became infected because of a poor care environment, we also need to address the root cause by improving the environment, ensuring smooth ventilation and sufficient light suitable for the growth of the peace lily tree. With regular care for a period of time, once the plant grows new branches and leaves again, it will return to its normal growth and ornamental state.

It is important to note that all the diseased branches and leaves we cut from the peace lily tree must be collected and disposed of together, since they still carry a large amount of pathogens. If they are left in the pot, the pathogens will re-infect the potted plant and cause the same symptoms again. Moreover, this disease is quite stubborn and spreads and infects easily, so be sure to destroy them together and never throw them away at random.