Lily Tango Kentucky White Cottony Spots - Causes & Fixes

Jump to cause: Mealybugs Cottony Scale Botrytis cinerea (Gray Mold)

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Mealybugs

These small, soft-bodied insects secrete a white, waxy, cotton-like substance to protect themselves. In Tango Kentucky Lilies, they tend to cluster in the crevices between leaf sheaths and near the base of the flower stalks.

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 your other houseplants.

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

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

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3 Use a cotton swab dipped in isopropyl alcohol to manually remove visible white clusters from the leaf sheaths and flower stalks.

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Cottony Scale

Scale insects produce a white, felt-like covering that can resemble cotton. They attach themselves to the stems or leaf undersides of the lily, feeding on sap and potentially causing yellowing of the foliage.

Common

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How to confirm: Inspect the underside of the leaves for small, immobile bumps beneath the white fuzz.

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

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

$10

In Stock

2 Physically remove visible scale insects and cottony masses from stems and leaves using a cotton swab dipped in rubbing alcohol.

3 Monitor the plant closely for any new infestations and ensure the plant is in a well-ventilated area to prevent pest resurgence.

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Botrytis cinerea (Gray Mold)

While typically gray, in early stages or specific humidity conditions, fungal infections can appear as fuzzy, light-colored patches on the lily petals or foliage. This fungus thrives in the high humidity often found around dense lily clusters.

Common

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How to confirm: Check if the white spots are accompanied by soft, rotting tissue or dark brown necrotic lesions on the leaves.

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1 Remove and discard all heavily affected petals and foliage to prevent the fungal spores from spreading to healthy parts of the plant.

2 Apply an organic fungicide to the plant to control the spread of the Botrytis cinerea infection.