Fig 4. Percent (± SE) appressorial formation of L. lecanii conidia after exposure to different concentrations of HIPVs over time.
The HIPVs produced from A. thaliana infested by 0, 1, 2, 4, 8, and 16 aphids, and conidia incubated in clean petri dishes were used as control. The control was abbreviated as CK. The treatments had different exposure times (6, 12, 18 and 24 h) to the HIPVs. The appressorial rate of formation was analyzed after A) 6; B) 12; C) 18; D) or 24 h exposure. The supernatant concentration of L. lecanii was diluted to 1×108 conidia·mL-1.