Jade plant 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 Jade plant (Crassula ovata), using what its sources say about pests and diseases, humidity and watering and 2 problems recorded for it.
Sources last read 14 September 2026.
Crassula ovata, commonly known as jade plant, lucky plant, money plant or money tree, is a succulent plant with small pink or white flowers that is native to the KwaZulu-Natal and Eastern Cape provinces of South Africa, and Mozambique; it is common as a houseplant worldwide. Much of its popularity stems from the low levels of care needed; the jade plant requires little water and can survive in most indoor conditions. Wikipedia, CC BY-SA 4.0
Native range: SE. Mozambique to SE. Cape Prov. (subtropical). Also sold as Baby Jade, Chinese rubber plant, Dwarf rubber plant, friendship tree, jade tree and Japanese rubber plant.
What Jade plant’s sources say that bears on this
- Pests and diseases
- Can be troubled by mealybugs.NC State Extension · read 13 September 2026Can be troubled by aphids, vine weevils and mealybugs. Diseases: usually none.RHS · read 13 September 2026
- Humidity
- Most foliage plants prefer more humidity than a heated room gives; succulents are named as an exceptionPenn State Extension · read 11 September 2026
- Watering
- Water moderately once the soil is dry, and less from fall to late winter. Overwatering can cause leaf fall and root rot.NC State Extension · read 13 September 2026During growth in spring and summer, water enough to keep lightly moist; during winter dormancy, water very sparingly.RHS · read 13 September 2026
How this shows up on a Jade plant
Curled, sticky new leaves with green or black insects: aphids
Green, black or pale insects crowd the soft tips and buds of the jade plant. New leaves curl, and white cast skins collect below.
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: Where they sit. Aphids crowd soft tips and buds; scale sits still on older stems.
RHS · read 13 September 2026White, cottony tufts in the joints of the leaves: mealybugs
Clusters of white wax sit where each leaf joins the stem and along the undersides of the jade plant. Lifted with a cotton swab, each tuft holds a soft, pale insect, and the leaves below are sticky.
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 plant.
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 Jade plant
Most likely mealybugs
Ranked higher because Jade plant's recorded problems point this way.
- White, cottony tufts in the joints of the leaves: mealybugs RHS
Why: Mealybugs are soft insects that cover themselves in white wax, which gives the cottony look.
What to try:
- Move the jade plant 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 Jade plant'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 fungus gnats, which point at wet potting mix
Ranked higher for Jade plant because of what its sources say.
Jade plant stores water in its own tissue, which makes it more sensitive to wet soil than most leafy plants, so this reading is stronger for it.
- Well-drained RHS · read 11 September 2026
- Loam; pH Acid or Alkaline or Neutral RHS · read 11 September 2026
Why: Fungus gnats lay their eggs in moist potting mix, and their larvae feed on organic matter and fungi in it.
What to try:
- Let the top two inches of potting mix dry between waterings; the larvae need it wet.Useful: moisture meter
- Yellow sticky traps near the soil catch the adults and show whether the numbers fall.Useful: sticky traps
What would settle it: Put a slice of raw potato on the soil for a day. Tiny translucent larvae on the underside confirm them.
Less likely for a Jade plant, still possible
Questions
- What usually causes pests on a Jade plant?
- For Jade plant: mealybugs, aphids and fungus gnats.
- How can I tell which one it is on my Jade plant?
- 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 Jade plant's sources say about its pests and diseases?
- NC State Extension: Can be troubled by mealybugs. RHS: Can be troubled by aphids, vine weevils and mealybugs. Diseases: usually none.
- What does this look like on a Jade plant?
- Green, black or pale insects crowd the soft tips and buds of the jade plant. New leaves curl, and white cast skins collect below. Telling it apart: Where they sit. Aphids crowd soft tips and buds; scale sits still on older stems.
- Is Jade plant safe to handle while I check it?
- Its sources list it as toxic to cats and dogs. Wash your hands after handling the roots or sap, and keep trimmings away from pets.
Other plants that show pests
Burro's tailHard, rounded scale on the undersides of the leaves
Mexican snowballSticky buds and shoot tips crowded with small insects
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
Something else wrong with the Jade plant?
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.