What is the procedure for using an ivory soap insecticide solution on my hibiscus tree?

I've been advised to use ivory soap detergent in my garden when it isn't sunny. After applying the insecticide, does it get rinsed off or left alone?

What is the procedure for using an ivory soap insecticide solution on my hibiscus tree?
Here's what I do, sunny or not.





Mix a quart of water and a teaspoon of dishwashing liquid soap (for handwashing, not the machine) in a spray bottle. It can be Ivory or whatever else you have, even baby shampoo.





Thoroughly spray the plant, making sure you have wet the undersides of the leaves as well as the tops and especially where the leaves and srtems meet.





Let it sit for a half hour or so, then take the hose and rinse the plant.
Reply:After using the soap solution and rinsing it off, a few days later, you could spray it with a dilute sugar water mixture. This mimics the smell of aphids, and will attract ladybugs.