Table 2.

Initial and first-year response of laurel oak trees to mycorrhizal fungal injection (MycorTree® Injectable) and rhizobacterial (Compete® Plus and Yuccah®) soil treatments.

Treatment	Initial dia. (cm)	After 1 year
Treatment	Initial dia. (cm)	Fine roots (g)	% ecto.	Stem dia. (cm)	% stem dia. increase^*
Mycor	2.1 a	2.0 a	4 a	4.8 a	128 a
Mycor + bacteria	2.0 a	2.7 a	6 a	4.2 a	110 a
Bacteria	2.5 a	2.4 a	5 a	4.7 a	88 b
Subdue®	2.5 a	1.3 a	2 b	4.4 a	76 b
Control	2.4 a	1.5 a	2 b	4.6 a	92 b

↵*% Increase = (first yr. – initial measurements)/initial measurement.