View on GitHub ↗A direct-contact option for small, exposed pests on indoor, outdoor, and greenhouse plants. This is standard product 652, a 32 fl oz ready-to-use spray with 1% potassium salts of fatty acids, EPA 67702-13-4.
Best fit
- Aphids, mealybugs, spider mites, whiteflies, thrips, and scale insects are listed targets. Thorough coverage matters more than leaving a coating behind: the spray must contact the pest.
- Useful when you can reach insects under leaves, along veins, or around joints. Soap has no residual insect-killing activity after it dries, so missed insects can remain and another inspection matters.
- This is not Captain Jack's Super Soap, which has a different formulation. It is also not a systemic treatment or a soil-drench recipe for root pests.
How to use
- Try a small area first, especially on a plant you have not treated with soap before. Wait at least 24 hours and check for injury before wider use; longer observation is sensible if the response is unclear.
- Shake the bottle and spray as supplied without dilution.
- Directly wet the pests and affected plant surfaces, including leaf undersides. Rotate the pot and check tucked-away areas rather than merely misting from above.
- Avoid full sun. For this shelf setup, treat away from the close grow lights and return the plant after it dries. Note the date and inspect both pest activity and the plant's response afterward.
Recheck and limits
The label permits repeat treatment weekly or bi-weekly if needed. Reassess surviving pests and newly affected growth before repeating treatment.
The label excludes sweet peas, nasturtiums, and delicate ferns, and calls for care with new seedlings, transplants, and blooms. Extension guidance also notes that some succulents, including jade, can be soap-sensitive. That makes a test particularly worthwhile for this collection's waxy succulents, cacti, and mesembs.
For Lithops and split rock, keep this a targeted foliar decision: do not soak the pot or change its watering cycle just to apply soap.
Sources
- Bonide product 652.
- Bonide ready-to-use label.
- University of Minnesota: managing insects on indoor plants: direct contact and lack of residual activity.
- University of Connecticut: insecticidal soaps: plant sensitivity and spot testing.