 Once it was discovered that gravid female Ormia depleta flies are attracted to the song of Neoscapteriscus males in South America , a path to trap these flies at synthetic mole cricket song was opened . Experimentation then led to a rearing method . Laborious rearing of over 10 @,@ 000 flies on mole cricket hosts allowed releases of living fly pupae at many sites in Florida from the far northwest to the far south , mainly on golf courses , and mainly in 1989 @-@ 1991 . Populations were established , began to spread , and were monitored by use of synthetic mole cricket song . Eventually it was discovered that the flies had a continuous population from about 29 degrees North all the way south to Miami , but that the flies failed to survive the winter north of about 29 degrees . Shipment and release of the flies to states north of Florida was thus a wasted effort . As the flies had been imported from 23 degrees South in Brazil and could not overwinter north of 29 degrees North in Florida , it was investigated in 1999 whether flies from 30 degrees South in Brazil might survive better in northern Florida , but they did not . 
 Once it was discovered that gravid female Ormia depleta flies are attracted to the song of Neoscapteriscus males in South America , a path to trap these flies at synthetic mole cricket song was opened . Experimentation then led to a rearing method . Laborious rearing of over 10 @,@ 000 flies on mole cricket hosts allowed releases of living fly pupae at many sites in Florida from the far northwest to the far south , mainly on golf courses , and mainly in 1989 @-@ 1991 . Populations <a href='uninflect' title='1'><mark>were</mark></a> established , began to spread , and <a href='uninflect' title='2'><mark>were</mark></a> monitored by use of synthetic mole cricket song . Eventually it was discovered that the flies had a continuous population from about 29 degrees North all the way south to Miami , but that the flies failed to survive the winter north of about 29 degrees . Shipment and release of the flies to states north of Florida was thus a wasted effort . As the flies <a href='been_done' title='3'><mark>had</mark></a> been imported from 23 degrees South in Brazil and could not overwinter north of 29 degrees North in Florida , it was investigated in 1999 whether flies from 30 degrees South in Brazil might survive better in northern Florida , but they did not . 
Once it was discovered dat gravid female Ormia depleta flies r attracted to the song of Neoscapteriscus males in South America , a path to trap dem flies at synthetic mole cricket song was opened . Experimentation then led to a rearing method . Laborious rearing of ova 10 @,@ 000 flies on mole cricket hosts allowed releases of living fly pupae at many sites in Florida from the far northwest to the far south , mainly on golf courses , and mainly in 1989 @-@ 1991 . Populations was established , began to spread , and was monitored by use of synthetic mole cricket song . Eventually it was discovered that da flies had a continuous population from about 29 degrees North all tdaway south to Miami , but tdatthe flies failed to survive the winter north of abt 29 degrees . Shipment and release of thdalies to states north of Florida was thus a wasted effort . As the flies done been imported from 23 degrees South in Brazil and could not overwinter north of 29 degrees North in Florida , it was investigated in 1999 whether flies from 30 degrees South in Brazil might survive better in northern Florida , but they did not .