Terri, You should be OK. I checked the Koppert site (see the link below). The active ingredient in neem oil will kill less than 25% of the green lacewing larvae (which are much better to release than the green lacewing eggs, especially outdoors) ON CONTACT and persists for "zero" weeks. The Biobest site: http://207.5.71.37/biobest/en/neven/default.asp states that the active ingredient kills less than 25% of the ADULT green lacewings but doesn't mention the larvae. Neither provides information about lady beetles. I know of a few rare cases both in the scientific literature and in greenhouses (the only location in which I recommend releasing lady beetles due to their tendency to disperse) where there was some kill of adult lady beetles that received a direct application, but the residual wasn't a problem. |
Here is a link that might be useful: Koppert Side Effects