The RHS says indoor winter jasmine, Jasminum polyanthum, may attract sap-feeding pests such as mealybugs and red spider mites, and advises regular checks because the earlier an outbreak is spotted, the easier it is to treat. Colorado State University Extension (houseplant pests) adds that spider mites are tied to hot, dry conditions, that scale is best treated with spray oils, and that new plants should be quarantined for at least three weeks. The RHS jasmine page covers J. polyanthum and does not mention jasmine sambac.
What the RHS says
The RHS jasmine growing guide says indoor jasmine may attract sap-feeding pests such as mealybugs and red spider mites and to check plants regularly. It gives no specific treatments. For the plant’s care, see Jasminum Polyanthum Care; for sambac, see Jasminum Sambac Indoor Care.
Pest guidance from Colorado State
| Pest | Signs | Controls the source describes |
|---|---|---|
| Mealybugs | Sap feeding, leaf drop, sticky honeydew, cottony egg masses | Swab with alcohol, or dilute alcohol (25 to 50 percent) or insecticidal soap; contact products miss root-feeding stages |
| Spider mites | White flecks near leaf veins on the underside, then graying or bronzing, webbing, leaf drop | Repeated water jets and higher humidity; horticultural oil is the most effective spray; soaps are only marginally effective |
| Scale | Honeydew (soft scale), dieback, leaf spotting (armored scale) | Spray oils are most effective; picking or rubbing for small infestations; treatment must cover a full generation of two to four months |
Humidity and spider mites
Colorado State says spider mite problems are more likely in hot, dry sites and that increasing humidity around the plant is among the most effective controls. This ties spider mites to winter heating and dry air. General humidity and bud-drop issues are discussed in Low Humidity Bud Drop.
Quarantine and spraying cautions
Colorado State says new plants should be quarantined in a separate area for at least three weeks, then inspected carefully. It says to use only pesticides labeled for houseplants and follow the label precisely, that alcohol can burn leaves so test a small area first, that aerosols should be kept at least 18 inches from the plant, and that plants stressed by temperature extremes or drought should not be sprayed. This page does not recommend specific chemical products.
What the sources do not cover
Neither source gives jasmine-specific pest treatments, and the RHS page covers only J. polyanthum. The Colorado State guidance is for houseplants in general. If you grow sambac, treat the table as general houseplant advice, not jasmine research.
Frequently asked questions
What pests attack indoor jasmine?
The RHS names mealybugs and red spider mites for indoor jasmine. Colorado State describes scale, whiteflies, aphids, thrips and fungus gnats as common houseplant pests in general.
How do I get rid of mealybugs?
Colorado State says to swab with alcohol or use dilute alcohol or insecticidal soap, and notes that these are contact-only and miss root-feeding stages.
Does humidity help with spider mites?
Yes. Colorado State says increasing humidity around the plant is among the most effective controls, along with repeated water jets.
Is jasmine safe for pets?
The ASPCA lists Jasminum species as non-toxic to dogs and cats. See Is Jasmine Toxic to Cats and Dogs?.
Sources read for this page
Last reviewed 15 October 2026. Written by Md. Firozur Rahman. This page gives general guidance and cannot diagnose a plant from a description; see the Disclaimer. Back to the Jasmine hub.
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