2003/896/EC: Commission Decision of 19 December 2003 allowing Member States to extend provisional authorisations granted for the new active substances thiacloprid, thiametoxam, quinoxyfen, flazasulfuron, Spodoptera exigua nuclear polyhedrosis virus, spinosad, Giocladium catenulatum, Pseudomonas chlororaphis and indoxacarb (Text with EEA relevance) (notified under document number C(2003) 4851)