Alphachloralose (Chloralose, D-gluchloralose, gluchloral, anhydrochloral, (R)-1,2-O-(2,2,2-trichloroethylidene)-α-D-glucofuranose) is a hypnotic compound with anaesthetic properties. It has been used for general anaesthesia in laboratory animals and also as an avicide and rodenticide overseas.
Alphachloralose has no intrinsic selectivity for the target birds and particular skills and knowledge required to correctly use products to avoid intoxication of non-target birds and animals. The APVMA has determined that it is in the public interest for vertebrate pest control products containing alphachloralose to be restricted chemical products (RCPs), effective 16 December 2009. Restricted chemicals may only be supplied to or used by an authorised person.
The restricted use of this chemical and label directions are designed to minimise exposure of non-target animals and birds to this compound.
Alphachloralose products are registered the control of domestic pigeons (also known as the feral pigeon or rock pigeon), sparrows, starlings and sulphur crested cockatoos south of the 20°S parallel (Western Australia only). Other uses could be authorised by an APVMA permit.
Alphachloralose is mixed with a grain substrate and baiting of pest birds occurs after a period of pre-feeding with untreated grain to accustom the pest bird to the food source and also to confirm that non-target species are not present.
Label instructions require constant supervision of the treated grain, removal of the treated grain if non-target species arrive in significant number and removal, humane euthanasia and disposal of any dead or dying target birds. Non-target species may recover with treatment.