Echeveria purpusorum cv White Cottony Spots - Causes & Fixes

Jump to cause: Mealybugs Powdery Mildew Cottony Blight (Botrytis)

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Mealybugs

The white, cottony masses are characteristic of mealybug colonies, which secrete a waxy substance to protect themselves while they suck sap from the Echeveria's fleshy leaves.

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 likely mealybugs.

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

2 Carefully remove visible mealybug colonies using a cotton swab dipped in isopropyl alcohol to dissolve their waxy coating.

3 Apply an organic insecticide spray to the entire plant, ensuring you reach the crevices of the leaves, to eliminate any remaining pests and larvae.

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Powdery Mildew

While less common in succulents than in leafy plants, high humidity can trigger fungal spores that appear as a white, dusty coating on the leaf surfaces of Echeveria.

Common

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How to confirm: Check if the white patches can be wiped off easily like dust and if the underlying leaf tissue remains healthy.

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1 Apply an organic fungicide to the affected leaves to eliminate the powdery mildew spores and prevent further spread.

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0.9 L • 1 pcs • Organic

$10

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2 Improve air circulation around the plant and reduce humidity levels to create an environment less hospitable to fungal growth.

3 Gently wipe away visible white spots with a soft cloth or cotton swab dipped in a mild soap solution to clean the leaf surfaces.

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Cottony Blight (Botrytis)

If the plant has been exposed to excessive moisture in its rosette, Botrytis can develop a fuzzy, grey-to-white appearance that eventually leads to rot.

Common

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How to confirm: Inspect the base of the rosette for any signs of softening or dark, mushy tissue accompanying the white fuzz.

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1 Remove any affected leaves or petals immediately to prevent the fungus from spreading to the rest of the rosette.

2 Apply an organic fungicide spray to protect healthy tissues and control the spread of the blight.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

$10

In Stock

3 Adjust your watering routine to avoid getting moisture in the center of the rosette and ensure the plant is in a well-ventilating area.