Table 3.

Effects of volume and dilution on attraction of gravid Aedes mosquitoes to bamboo leaf (1X) and white oak leaf (0.5X) infusions in walk-in cages using the sticky-screen bioassay procedure. Extracts were prepared as 1× (33.6 g/4 l well water) or 0.5X (8.4 g/l well water) infusions, and were used either at 100% or after dilution with an equal volume of well water (50%).

Infusion	Volume (ml)	Dilution (%)	Mean Oviposition Activity Index (± SE)*
			Ae. aegypti	P > |t|**	Ae. albopictus	P > |t|**
Bamboo leaf	500	50	−0.12 (0.13)	0.4287	0.44 (0.09)	0.0159
		100	0.34 (0.01)	< 0.001	0.72 (0.13)	0.0125
	1230	50	0.36 (0.09)	0.0310	0.63 (0.14)	0.0193
		100	0.35 (0.11)	0.0557	0.50 (0.13)	0.0305
White oak leaf	500	50	0.47 (0.08)	0.0116	0.08 (0.11)	0.5486
		100	0.32 (0.13)	0.0869	0.56 (0.04)	< 0.001
	1230	50	0.22 (0.04)	0.0125	0.16 (0.06)	0.0718
		100	0.41 (0.10)	0.0276	0.32 (0.15)	0.1151

^*OAI (Oviposition Activity Index) is the mean of 4 trials.

^**Student s t test of the hypothesis that mean OAI for each treatment is significantly greater (attraction) or less (repulsion) than 0.