<Page> Exhibit 99.1 CERTIFICATE PURSUANT TO 18 U.S.C. SECTION 1350 AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 The undersigned, Eleanor L. Thomas, President (chief executive officer) of the managing owner, Prudential Securities Futures Management Inc. (the 'Managing Owner'), of Prudential Securities Strategic Trust (the 'Trust'), hereby certifies, pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that: (1) The Trust's Quarterly Report on Form 10-Q for the period ending September 30, 2002, as filed with the Securities and Exchange Commission on the date hereof (the 'Quarterly Report'), fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and (2) The information contained in the Quarterly Report fairly presents, in all material respects, the financial condition and results of operations of the Trust. /s/ Eleanor L. Thomas - ------------------------------------------------------ Eleanor L. Thomas President (chief executive officer) of the Managing Owner November 14, 2002 The undersigned, Steven Weinreb, Chief Financial Officer of the managing owner, the Managing Owner, of the Trust, hereby certifies, pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that: (1) The Trust's Quarterly Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and (2) The information contained in the Quarterly Report fairly presents, in all material respects, the financial condition and results of operations of the Trust. /s/ Steven Weinreb - ------------------------------------------------------ Steven Weinreb Chief Financial Officer of the Managing Owner November 14, 2002