Markus Holaschke of the Institute for Phytopathologie und Angewandte, University of Giessen, Germany is looking for anyone interested in trying out an extract he has developed that may keep off the possums. He says that it is a natural concentrated extract made from quassia and that it has no chemical additives. You can email him at markus.holaschke@agrar.uni-giessen.de for a free sample and instructions.
