Testing the effects of liquid eradicants on emergence of Anobium punctatum (Deg.)

A laboratory method is described for evaluating the effectiveness of insecticides in preventing the emergence of furniture beetles (Anobium punctatum (Deg.)). Composite blocks of Scots pine were prepared consisting of an untreated core containing larvae and two treated outer veneers from which all solvent had evaporated and through which beetles had to emerge. Dieldrin and gamma-BHC prevented emergence of beetles, dieldrin being the more effective material. The following did not prevent emergence at the concentrations tested: pentachlorophenol, zinc naphthenate, polychlor-naphthalene, copper-chrome-arsenate, tri-butyltin oxide.