Davey Tree Expert 10-Q 2007 Q2 Quarterly report

                                                                                                                                                  Exhibit 32.1

Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
Certification of Chief Executive Officer
I, Karl J. Warnke, President and Chief Executive Officer of The Davey Tree Expert Company (the "Company"), do hereby certify in accordance with 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge:
(1.)   The Quarterly Report on Form 10-Q of the Company for the period ended June 30, 2007              (the "Report") fully complies with the requirements of Section 13(a) or 15(d) of the              Securities Exchange Act of 1934 (15 U.S.C. 78m or 78o(d)); and
(2.)  The information contained in the Report fairly presents, in all material respects, the              financial condition and results of operations of the Company.
Date:   August 7, 2007	/s/ Karl J. Warnke
	Karl J. Warnke
	President and Chief Executive Officer