TABLE 4.

Areas of tunnels (mean ± SE) produced in Trichoderma-treated and untreated sand.

Test	Treated sand (mm2)	Untreated sand (mm2)	Statistical result			Effect
			F	d.f.	P
T. longibrachiatum	1129.96 ± 72.28a	706.22 ± 58.08b	23.93	1, 40	<0.0001	Enhanced
T. koningii	1163.89 ± 47.27a	908.31 ± 89.60b	11.56	1, 40	0.0015	Enhanced
T. harzianum	1030.26 ± 77.14a	1043.34 ± 60.13a	0.02	1, 40	0.8816	N.A.
T. hamatum	881.38 ± 62.82a	862.43 ± 57.18a	0.06	1, 40	0.8011	N.A.
T. atroviride	1027.45 ± 84.75a	937.84 ± 54.04a	0.97	1, 40	0.3313	N.A.
T. viride	929.92 ± 74.52a	837.54 ± 60.25a	1.00	1, 40	0.3232	N.A.
T. spirale	811.14 ± 55.60a	959.28 ± 71.32a	2.64	1, 40	0.1121	N.A.

Different letters within the same row indicate significant differences (P < 0.05). “Enhanced” indicates that significantly larger tunnels were produced by termites in sand treated with conidia of each Trichoderma species compared with untreated sand. “N.A.” indicates no significant difference in tunnel areas when compared between Trichoderma-treated and untreated sand.