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Most Common Succulent Plant Pests:
Identification and Treatment Guide

Updated: July 4, 2023

Succulents are known for their ability to thrive in arid conditions and their unique, fleshy appearance. However, just like any other plant, succulents are susceptible to pests that can damage their health and appearance. In this article, we will discuss some of the most common succulent plant pests, how to identify them, and the best treatment methods to keep your succulents healthy and thriving.

1. Mealybugs

Mealybugs are one of the most common pests that affect succulents. These tiny, white insects feed on the sap of the plants, causing stunted growth and yellowing leaves. They are often found in clusters around leaf joints and on the undersides of leaves. If left untreated, mealybugs can quickly multiply and infest an entire plant.

To treat a mealybug infestation, start by removing any heavily infested leaves or branches. Then, wipe down the affected areas with a cotton swab soaked in rubbing alcohol or a mixture of water and dish soap. For larger infestations, you may need to use an insecticidal soap or neem oil spray to control the problem. Be sure to repeat the treatment every few days until all signs of mealybugs are gone.

2. Aphids

Aphids are another common pest that can wreak havoc on succulents. These small insects are typically green or black and can be found on the undersides of leaves or clustered around new growth. Aphids feed on the sap of plants, causing distorted growth and yellowing leaves.

To get rid of aphids on your succulents, start by spraying them with a strong stream of water to dislodge the insects. You can also use insecticidal soap or neem oil spray to control the infestation. If you prefer a natural remedy, try making a homemade spray using garlic or onion infused water. Simply steep crushed garlic or onion in water overnight and strain before spraying on the affected plants. Repeat the treatment every few days until the aphids are eliminated.

3. Spider Mites

Spider mites are tiny arachnids that can quickly multiply and infest succulents. These pests are difficult to spot with the naked eye but can cause severe damage to your plants. Spider mites feed on the sap of succulents, causing yellowing leaves, webbing, and eventual leaf drop.

To treat a spider mite infestation, start by isolating the affected plant to prevent the mites from spreading to other succulents. Then, wash the plant thoroughly under a strong jet of water to dislodge the mites. You can also use insecticidal soap or neem oil spray to control the infestation. Be sure to repeat the treatment every few days until all signs of spider mites are gone.

4. Scale Insects

Scale insects are small, oval-shaped pests that attach themselves to succulents and feed on their sap. They can be difficult to spot as they often blend in with the plant’s natural coloration. Scale insects secrete a sticky substance called honeydew, which can attract ants and promote the growth of sooty mold.

To treat scale insects on your succulents, start by gently scraping them off with a soft brush or toothbrush. You can also use rubbing alcohol or a mixture of water and dish soap to remove them manually. For larger infestations, consider using an insecticidal soap or neem oil spray to control the problem. Be sure to repeat the treatment every few days until all signs of scale insects are gone.

5. Fungus Gnats

Fungus gnats are small flies that are attracted to moist soil and decaying organic matter. While they may not directly harm succulents, their larvae can damage the plant’s roots by feeding on them. If you notice adult fungus gnats flying around your succulents or small, white larvae in the soil, it’s important to take action.

To get rid of fungus gnats, start by allowing the soil to dry out completely between waterings. This will help eliminate the moist environment that attracts the gnats. You can also use yellow sticky traps to catch and control adult gnats. If the infestation persists, consider using a biological control such as beneficial nematodes to target the larvae in the soil.

Conclusion

While succulents are generally low-maintenance plants, they are not immune to pests. Mealybugs, aphids, spider mites, scale insects, and fungus gnats are some of the most common pests that can affect succulents. By learning how to identify these pests and implementing appropriate treatment methods, you can keep your succulents healthy and free from infestations. Remember to always monitor your plants regularly and take action at the first sign of pest activity to prevent further damage.