Anthurium andraeanum Felicita White Cottony Spots - Causes & Fixes

Jump to cause: Mealybugs Powdery Mildew Scale Insects

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Mealybugs

These sap-sucking insects produce a white, waxy, cottony secretion to protect themselves while feeding on the plant's stems and leaf undersides. They can weaken the Anthurium by draining nutrients and secreting honeydew, which may lead to sooty mold.

Very Common

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How to confirm: Use a cotton swab dipped in rubbing alcohol to dab the white spots; if they dissolve and turn brown, it is mealybugs.

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1 Isolate the plant immediately to prevent the mealybugs from spreading to your other houseplants.

2 Treat the infestation by spraying the plant with an organic insecticide or neem oil to kill the insects and their waxy coatings.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

$10

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3 Use a cotton swab dipped in isopropyl alcohol to manually remove any visible white cottony clusters from the stems and leaf undersides.

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Powdery Mildew

This fungal disease manifests as white, flour-like patches on the leaves, often appearing when humidity is high but air circulation is poor. In Anthuriums, it can lead to leaf distortion and eventual necrosis of the foliage.

Common

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How to confirm: Check if the white spots appear more like a fine dust on the surface that can be wiped off with your finger.

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1 Treat the affected leaves immediately with an organic fungicide to stop the spread of the fungal spores.

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 fungus from spreading to healthy foliage.

Fiskars 5/8" Bypass Pruning Shears

Cutting Tools

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Scale Insects

While scale often looks like hard bumps, some species can produce a fine, white, waxy buildup that resembles cottony fuzz. They attach firmly to the stems and petiole of the Anthurium to extract sap.

Common

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How to confirm: Examine the stems for small, stationary bumps that do not move when poked with a fingernail.

build How to fix it

shopping_cart Recommended Products

1 Treat the plant with an organic insecticide spray to eliminate the scale insects and their waxy coverings.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

$10

In Stock

2 Manually remove visible scale insects and white buildup using a cotton swab dipped in isopropyl alcohol.

3 Inspect nearby plants and clean the area to prevent the infestation from spreading to your other greenery.