Laui’s typically do not require a lot of maintenance. As with most succulents, bottom leaves will brown and die off as the age. Although, be sure to remove any dead leaves to keep the plant healthy. More importantly, so that they do not attract pests like the evil mealybug!
Mealybugs are the biggest pest threat to your succulents. They love to hide in crevices on your Echeverias. Therefore, be sure to inspect your plants regularly. Signs of mealybugs will appear in the form of a white cottony web or disfigured leaves. Be sure to eradicate them immediately.
These insects drink the sap out of plants. In addition to secreting honeydew that attracts ants. A Q-tip dipped in alcohol or spraying with an organic pest killing soap will do the trick. Read my complete post on mealybugs eradication here.
Aphids are less common but still a potential threat to Echeverias. Like mealybugs, they suck out the sap. If left untreated, they will eventually kill your succulent. Nevertheless, protect your echeveria by applying diatomaceous earth to the soil and neem oil to the succulent. Also, use an insecticidal soap to control existing infestations.
Learn more about Mealybug and pest eradication here.
Echeveria Diseases
Never let Echeverias laui stand in water for prolonged periods of time. Otherwise, the chances of rot and other fungal diseases will skyrocket. Root rot is caused by consistent moisture. Subsequently leading to bacterial infections. In any event, the good news is that it is easy to prevent. Specifically, avoid overwatering and use a well-draining soil.
Root rot is best caught early. Therefore, routinely check for rot on your Echeverias. Rotted sections will be brown or black and mushy. The rot usually starts in the roots. Then, it spreads up the stem. If you find an infected part, you’ll have to remove it. Otherwise, it will spread.
First, cut away the rotted section. Second, leave your succulent out of the soil for a few days so it can dry out and callous over. Third, repot in fresh well-draining soil and keep an eye on watering.
Echeveria Sunburn
Brown spots may appear on your Echeveria laui. These are most likely from sunburn. Therefore, move your plant out of direct sun to prevent further damage. Learn how to save your sunburned succulents here.