PlantsPicker Logo
person Sign In
Haworthia fasciata White Cottony Spots
eco White Cottony Spots

Haworthia fasciata – White Cottony Spots

Why does your Haworthia fasciata have white cottony spots? Diagnose the cause and fix it with our step-by-step guide.

yard View full Haworthia fasciata care guide
pets Pet Friendly
Jump to cause: Mealybugs Cottony Scale Powdery Mildew

search Possible Causes

error

Mealybugs

These small, white, sap-sucking insects produce a waxy, cottony secretion to protect themselves. They attach to the crevices between the Haworthia leaves and suck the moisture from the plant's fleshy tissues.

Very Common
lightbulb
How to confirm: Use a cotton swab dipped in isopropyl alcohol to dab the spots; if they dissolve and turn brown, it is mealybugs.
build How to fix it
shopping_cart Recommended Products
1 Isolate the plant immediately to prevent the mealybugs from spreading to other houseplants.
2 Treat the infestation by spraying the plant with an organic insecticide to kill the insects and their waxy secretions.
Bonide Captain Jack's Neem Oil 32 oz
Bonide Captain Jack's Neem Oil 32 oz
0.9 L • 1 pcs • Organic
$10
In Stock
3 Gently wipe away visible white cottony masses using a cotton swab dipped in isopropyl alcohol to remove the pests from leaf crevices.
warning

Cottony Scale

Similar to mealybugs, these insects create a white, felt-like covering over their bodies. They tend to settle on the base of the leaves or near the root zone of succulent species like Haworthia.

Common
lightbulb
How to confirm: Check for small, raised bumps under the white fluff that do not move when poked with a needle.
build How to fix it
shopping_cart Recommended Products
1 Isolate the plant immediately to prevent the spread of scale to other houseplants and treat the visible white spots with an organic insecticide spray.
Bonide Captain Jack's Neem Oil 32 oz
Bonide Captain Jack's Neem Oil 32 oz
0.9 L • 1 pcs • Organic
$10
In Stock
2 Carefully wipe away the cottony insects from the leaf bases and root zone using a cotton swab dipped in isopropyl alcohol.
3 Check the soil moisture levels to ensure the plant is not overly damp, as high humidity can encourage pest activity.
GROWIT Soil Moisture Meter - Blue
GROWIT Soil Moisture Meter - Blue
Water Meters
$12
In Stock
warning

Powdery Mildew

A fungal pathogen that manifests as white, flour-like patches on the surface of the leaves. While more common in leafy plants, high humidity and poor airflow around a Haworthia can trigger outbreaks.

Common
lightbulb
How to confirm: Observe if the white spots appear as a thin film that can be wiped off easily without leaving sticky residue.
build How to fix it
shopping_cart Recommended Products
1 Apply an organic fungicide to the affected leaves to eliminate the fungal spores and prevent further spread.
Bonide Captain Jack's Copper Fungicide 32 oz
Bonide Captain Jack's Copper Fungicide 32 oz
0.9 L • 1 pcs • Organic
$12
In Stock
2 Improve air circulation around the plant and reduce humidity levels to create an environment less hospitable to powdery mildew.
3 Prune and dispose of any heavily infected leaves to prevent the pathogen from spreading to healthy tissue.

Other Haworthia fasciata problems

Your plant might also be experiencing one of these issues:

eco Yellow Leaves chevron_right
local_hospital All symptoms eco All plants with white cottony spots
favorite