Fig. 6

A Effect of 1 × 10⁷ conidia ml⁻¹ of Purpureocillium lilacinum PL1 or 250 ppm of Abamectin on the mortality of Amrasca devastans nymphs after 7 days of treatment. Representative photographs of dead A. devastans nymphs cause by PL1 with mycelia on the cuticle under the light microscope at 40 × magnification (B) and 400 × magnification (C). Data are presented as the means of triplicate analysis ± standard deviation. Different lowercase letters a, b indicate statistical differences in the mortality of A. devastans nymphs between PL1 and Abamectin treatment groups. Capital letters A, B indicate statistical differences in the mortality of A. devastans nymphs at different time intervals after treatment by PL1 or Abamectin. The statistical analysis was conducted using ANOVA followed by Duncan's test (p < 0.05)