The Welsh side sit just one place above the new Italian franchise at the bottom of the Magners League table, with just a solitary victory to their name this season.
And Turner is aware of the threat Aironi will bring to Rodney Parade but knows it is vital that his side come away with the victory.
“It goes without saying that it is a must win game,” said Turner.
“We just need to start getting some points and we have another important game the week after against the Ospreys as well.
“Even though they haven’t got a win yet, I think they should have.
“They have troubled sides and should have beat Edinburgh the other week and they have got a lot of big names.
“It is a big pack with (Marco) Bortolmai, (Carlo Antonio) Del Fava, (Nick) Williams and (Salvatore) Perugini.
“Also I know Ludovic (Mercier) from my time at Gloucester and he is probably one of the best goal kickers I have seen, so we will have to be disciplined.
“They have got the former Blue Bulls lad (Danwel) Demas and Rod Penney who has just joined from Saracens so they have some big names.”
The two sides will meet at 18:30 on Saturday as Magners League action returns following the European break.
