Dracaena pests, webbing or sticky leaves: causes and what to do
6 results in the diagnosis tree begin with pests, 5 of them marked likely when the answers fit. They are ordered here for Dracaena (Dracaena fragrans), using what its sources say about pests and diseases, humidity and watering and 4 problems recorded for it.
Sources last read 14 September 2026.
Dracaena fragrans, is a flowering plant species that is native to tropical Africa, from Sudan south to Mozambique, west to Côte d'Ivoire and southwest to Angola, growing in upland regions at 600–2,250 m (1,970–7,380 ft) altitude. Wikipedia, CC BY-SA 4.0
Native range: Trop. Africa (seasonally dry tropical). Also sold as Corn Plant, Cornstalk Plant, Dragon Tree, fragrant dracaena, Janet Craig Plant and Ribbon Plant.
What Dracaena’s sources say that bears on this
- Pests and diseases
- Can be troubled by longtailed mealybug and other mealybugs, banded greenhouse thrips and fern scale.NC State Extension · read 13 September 2026Mealybugs, thrips, greenhouse red spider mite and scale insects can attack it. Disease is uncommon.RHS · read 13 September 2026
- Humidity
- ASHRAE recommends indoor relative humidity between 30% and 60%Penn State Extension · read 11 September 2026
- Watering
- During the growing season keep the soil moist; water less in winter. It is sensitive to fluoride and salt buildup, so if the leaves brown, use water without fluoride and flush out salts once a month.NC State Extension · read 13 September 2026In the growing season, water moderately and feed monthly with a balanced liquid feed; give little water in winter.RHS · read 13 September 2026
How this shows up on a Dracaena
Fine pale speckling on the blades, then webbing at the tips: spider mites
Speckling spreads over the dracaena until the blades look washed out and bronze, with fine threads at the growing points.
RHS lists spider mites among the pests it may attract. Heated rooms suit them: dry, warm air speeds each generation, and the damage builds within weeks.
Telling it apart: Where the damage starts. Mites stipple the whole leaf in fine dots; sun scorch bleaches the side facing the window.
RHS · read 13 September 2026Silver-flecked leaves and marked or distorted flowers: an insect pest
The surface of the blades of the dracaena looks scraped and silvered, and slender insects smaller than a grain of rice run or jump when disturbed.
RHS lists thrips among the pests it may attract. They feed on leaves and in flowers, and hide in buds, which makes them hard to spot.
Telling it apart: The black specks. Silvering with black dots is thrips; pale dots without them point at mites.
RHS · read 13 September 2026Sticky leaves and immobile shell-like insects on the stems
The dracaena is sticky to the touch and yellows slowly. Along the veins on the undersides sit small shell-like scales that lift off with a fingernail.
RHS lists scale insects among the pests it may attract. The insect settles under a waxy shell and feeds on sap for life, so a colony builds quietly along the stems.
Telling it apart: Whether the bumps sit on the veins. Scale follows the sap; spots from disease scatter across the leaf.
RHS · read 13 September 2026White, cottony tufts in the joints of the blades: mealybugs
The dracaena carries white, cottony specks in its crevices, and growth slows. Leaves beneath the colonies turn sticky and, in time, dull or yellow.
RHS lists mealybugs among the pests it may attract. The wax keeps them dry and hard to reach, so they multiply in the sheltered joints of the clump.
Telling it apart: Where the white is. Mealybugs gather in joints and under leaves; a powdery coating across the top of a leaf is mildew.
RHS · read 13 September 2026Possible causes, likeliest first for a Dracaena
Most likely spider mites
Ranked higher because Dracaena's recorded problems point this way.
- Fine pale speckling on the blades, then webbing at the tips: spider mites RHS
Why: Spider mites feed on individual leaf cells, and each emptied cell shows as a pale speck.
What to try:
- Move the dracaena away from other plants.
- Wash the leaves, top and underside, with a strong spray of water in a shower or sink.
What would settle it: Hold a sheet of white paper under a leaf and tap the leaf. Tiny specks that move across the paper are mites.
Most likely mealybugs
Ranked higher because Dracaena's recorded problems point this way.
- White, cottony tufts in the joints of the blades: mealybugs RHS
Why: Mealybugs are soft insects that cover themselves in white wax, which gives the cottony look.
What to try:
- Move the dracaena away from other plants.
- Wipe off every insect you can see with a cotton swab dipped in rubbing alcohol, testing a single leaf first.
What would settle it: Touch a tuft with a cotton swab. If a small, pale, oval insect is underneath, it is a mealybug.
Most likely scale insects
Ranked higher because Dracaena's recorded problems point this way.
- Sticky leaves and immobile shell-like insects on the stems RHS
Why: Scale insects settle in one place under a hard or waxy shell and feed on sap.
What to try:
- Move the dracaena away from other plants.
- Scrape the scales off with a fingernail or a soft brush, then wipe the stems and leaves.
What would settle it: Push a bump gently with a fingernail. Scale comes away and leaves a mark; a bump that is part of the dracaena does not move.
Less likely for a Dracaena, still possible
Questions
- What usually causes pests on a Dracaena?
- For Dracaena: spider mites, mealybugs and scale insects.
- How can I tell which one it is on my Dracaena?
- What can you see? Fine webbing, and tiny pale speckles on the leaves; White, cottony tufts in the leaf joints; Small brown or pale bumps on stems and leaves that do not move; Clusters of small, soft insects on the new growth; Tiny dark flies around the soil; Sticky, shiny residue, but no insect I can see.
- What do Dracaena's sources say about its pests and diseases?
- NC State Extension: Can be troubled by longtailed mealybug and other mealybugs, banded greenhouse thrips and fern scale. RHS: Mealybugs, thrips, greenhouse red spider mite and scale insects can attack it. Disease is uncommon.
- What does this look like on a Dracaena?
- Speckling spreads over the dracaena until the blades look washed out and bronze, with fine threads at the growing points. Telling it apart: Where the damage starts. Mites stipple the whole leaf in fine dots; sun scorch bleaches the side facing the window.
- Is Dracaena safe to handle while I check it?
- Its sources list it as toxic to cats, dogs and people. Wash your hands after handling the roots or sap, and keep trimmings away from pets.
Other plants that show pests
Asparagus fernCurled, sticky new fronds with green or black insects: aphids
Cast iron plantIrregular notches bitten from leaf edges by an insect pest
Lucky bambooSilver-flecked leaves and marked or distorted flowers: an insect pest
Madagascar dragon treePale stippled leaves and tiny moving dots underneath: a mite pest
Ponytail palmHard, rounded scale on the undersides of the blades
Snake plantHard, rounded scale on the undersides of the blades
Something else wrong with the Dracaena?
What this does not cover
This page orders a decision tree's results using a plant's sourced care. It has not seen your plant, its pot or its window, and two problems at once are common: that is the usual reason a confident answer turns out wrong. The questions in the diagnosis tool narrow it further than a list can.