Venus flytrap 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 Venus flytrap (Dionaea muscipula), using what its sources say about pests and diseases, humidity and watering and 2 problems recorded for it.
Sources last read 18 September 2026.
The Venus flytrap is a carnivorous plant native to the temperate and subtropical wetlands of North Carolina and South Carolina, on the East Coast of the United States. Although various modern hybrids have been created in cultivation, D. Wikipedia, CC BY-SA 4.0
Native range: E. North Carolina to E. South Carolina (subtropical). Also sold as Meadow Clams, Venus' fly trap and Venus' mouse trap.
What Venus flytrap’s sources say that bears on this
- Pests and diseases
- Can be troubled by mealybugs and aphids. Diseases: usually none.RHS · read 13 September 2026
- Humidity
- ASHRAE recommends indoor relative humidity between 30% and 60%Penn State Extension · read 13 September 2026
- Watering
- Use rainwater or distilled water; the plant can die from hard water or chlorinated tap water.NC State Extension · read 13 September 2026
How this shows up on a Venus flytrap
Curled, sticky new leaves with green or black insects: aphids
The youngest growth of the Venus flytrap is sticky and distorted, and a closer look finds colonies of small, pear-shaped insects.
RHS lists aphids among the pests it may attract. They favor tender tips and buds, so the damage concentrates where the plant is growing.
Telling it apart: Whether you can see them. Aphids are visible to the eye; the mites that distort new growth are not.
RHS · read 13 September 2026Sticky leaves and white fluff where they meet the stem: mealybugs
Look into the tightest angles of the crown: white woolly patches there are mealybug colonies, often with a sticky sheen on the leaves below them.
RHS lists mealybugs among the pests it may attract. They feed on sap and shed the excess as sticky honeydew, and a colony tucked into the joints spreads before it is noticed.
Telling it apart: Whether the white comes with stickiness. Mealybugs leave honeydew; dust and mildew do not.
RHS · read 13 September 2026Possible causes, likeliest first for a Venus flytrap
Most likely mealybugs
Ranked higher because Venus flytrap's recorded problems point this way.
- Sticky leaves and white fluff where they meet the stem: mealybugs RHS
Why: Mealybugs are soft insects that cover themselves in white wax, which gives the cottony look.
What to try:
- Move the venus flytrap 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 aphids
Ranked higher because Venus flytrap's recorded problems point this way.
- Curled, sticky new leaves with green or black insects: aphids RHS
Why: Aphids cluster on soft new growth and flower buds, where the sap is easiest to reach.
What to try:
- Rub them off with fingers, or rinse them off in a sink or shower.
- Repeat every few days while new ones appear.
What would settle it: Look for the pale shed skins among the insects. Aphids molt as they grow, and the skins are left behind in the colony.
Most likely spider mites
Why: Spider mites feed on individual leaf cells, and each emptied cell shows as a pale speck.
What to try:
- Move the venus flytrap 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.
Less likely for a Venus flytrap, still possible
Questions
- What usually causes pests on a Venus flytrap?
- For Venus flytrap: mealybugs, aphids and spider mites.
- How can I tell which one it is on my Venus flytrap?
- 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 Venus flytrap's sources say about its pests and diseases?
- RHS: Can be troubled by mealybugs and aphids. Diseases: usually none.
- What does this look like on a Venus flytrap?
- The youngest growth of the Venus flytrap is sticky and distorted, and a closer look finds colonies of small, pear-shaped insects. Telling it apart: Whether you can see them. Aphids are visible to the eye; the mites that distort new growth are not.
Other plants that show pests
AlocasiaFine pale speckling on the leaves, then webbing at the tips: spider mites
Aloe veraSticky leaves and immobile shell-like insects on the stems
Areca palmDull, finely mottled fronds and faint webs: spider mites
Arrowhead plantCurled, sticky new leaf blades with green or black insects: aphids
Asparagus fernCurled, sticky new fronds with green or black insects: aphids
Bird's nest fernSticky leaves and immobile shell-like insects on the stems
Something else wrong with the Venus flytrap?
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.