Is your oleander suddenly turning yellow? Like all plants, this graceful shrub can also be attacked by diseases . scale insects, aphids or yellow spiders are the most well-known parasites that can infect your plant.
But why does your oleander have brown spots and yellowed leaves? What diseases can infect it and what can be done? Here are some answers.
Why do oleander leaves turn yellow and fall?
Oleander is a summer plant that appreciates sunlight and optimal ventilation. When this shrub is healthy, it stands out for its evergreen green foliage adorned with white, pink or orange flowers.
However, this plant is very sensitive to some viruses, fungi and bacteria. So, if you notice that your oleander’s leaves are turning yellow and the stems are full of brown spots, it means that your plant is affected by sooty mold .
It is a disease caused by the honeydew of parasites, particularly scale insects. This substance contains fungi that spread on the plant in a very short time. It can cause enormous damage to oleander if not treated in time.
How to treat yellow foliage and brown spots on oleander?
To get rid of scale insects, which are your oleander’s worst enemies, forget about chemicals, which only damage it further. Indeed, gardeners offer you a natural and effective solution to treat yellow leaves and brown spots.
What if you use black soap? It is a formidably effective product for fighting scale insects that are invading your plant.
Fight scale insects with black soap
Use this super-effective grandma’s remedy to put an end to the invasion of scale insects on your oleander. To prepare this magical recipe , you need:
- 20 ml of 90° alcohol
- 1 tablespoon vegetable oil
- 1 tablespoon black soap
Take all the ingredients and dilute them in 1 liter of water.
Place it in a spray bottle and spray it on the infected parts of the plant.
Repeat the operation until the scale insects disappear.
Using tea tree essential oil
Did you know that tea tree essential oil is very effective at repelling ants, aphids and scale insects ? To treat oleander, dilute 10 drops of oil in 1 liter of water and spray the solution obtained on the plant.