Table 2: Molting and oviposition success of Amblyomma triste ticks infected by Rickettsia parkeri (infected group) and noninfected (control group) through four consecutive generations (F1 to F4) in the laboratory.

Tick generation Number nymphs that molted to adults/Number recovered
engorged nymphs (% molting success)
Number females that oviposited/Number recovered
engorged females (% oviposition success)
Infected Control Infected Control

F1274/558 (49.1)537/656 (81.9)*18/19 (94.7%)9/9 (100)
F21154/1580 (73.0)1089/1093 (99.6)*18/21 (85.7%)7/7 (100)
F3100/240 (41.7)299/321 (93.1)*10/10 (100)7/7 (100)
F4404/552 (73.2)411/457 (89.9)*10/10 (100)5/5 (100)

Total1932/2930 (65.9)2336/2527 (92.4)*56/60 (93.3)28/28 (100)

 *means that molting or oviposition success values for infected and control ticks (horizontal lines) of the same tick stage were significantly different ( ).