Can the oil/water/soap solution (recommended in your page on aphid control) be used concurrently with ladybugs (i. e. is the solution toxic to ladybugs)?
Certified GKH Gardening Expert
You have to spray the soap solution directly on the aphids to eliminate them and be sure to check the underside of leaves too. Using soap-like solutions on aphids allows predator insects (such as ladybugs, which have harder bodies) to survive and naturally control aphids. In other words, the ladybugs should be just fine.