This Regulatory Update explains that it is unlawful to place on the market in the UK plant protection products that contain azadirachtin, the active ingredient of neem oil.
http://www.pesticides.gov.uk/approvals.asp?id=2944
This Regulatory Update explains that it is unlawful to place on the market in the UK plant protection products that contain azadirachtin, the active ingredient of neem oil.
http://www.pesticides.gov.uk/approvals.asp?id=2944