Table 3. Effects of Dioscorea bulbifera extract on drywood termites

Factor	Parameter
	Retention	Mortality	Weight loss test	Degree of damage
Type of solvent	*	*	*	*
Concentration	*	*	ns	ns
Type of solvent: Concentration	ns	ns	ns	ns

Significantly different (F < 0.05);
not significantly different (F > 0.05).