. Author manuscript; available in PMC: 2021 Oct 5.

Published in final edited form as: J Am Mosq Control Assoc. 2020 Jun 1;36(2):66–73. doi: 10.2987/20-6931.1

Table 3.

Trap location features of AGO traps and percentage of traps in classified clusters (1, 2) at the nonintervention (NIS) site, Salinas municipality, Puerto Rico from April to July 2017.

Variable name	Units or Descriptive	Cluster 1 (n=15)	Cluster 2 (n=12)
Trap water temperature	°C	29.5 ± 0.2	30.7 ± 0.2
Trap exposure to sun	Total / Shade	0 / 100	66.6 / 33.3
Trap location at property	Front / Elsewhere (alongside, backyard)	40.0 / 60.0	91.6 / 8.3
Trap under vegetation	No / Yes	60.0 / 40.0	100 / 0
House occupancy	Uninhabited / Inhabited	0 / 100	33.3 / 66.6
Trap water volume	Liters	7.4 ± 0.1	7.0 ± 0.2
Pet presence	No / Yes	26.6 / 73.3	58.3 / 41.6
Trap’s location background	Dark / Light	46.6 / 53.3	10.0 / 90.0
Presence of adult mosquitoes alive in infusion chamber^*	No / Yes	76.0 / 24.0	93.0 / 17.0
Ground cover under trap	Grass / Built	20.0 / 80.0	8.3 / 91.6
Trap exposure to rain	No / Yes	20.0 / 80.0	5.0 / 95.0

Following heavy rains, protruded eggs from captured female Ae. aegypti may be washed through the screen into the infusion chamber, then hatch and develop into adults that remain trapped within the infusion chamber.