FIG. 3.

Trends for mean survival of M. persicae after spraying. M. persicae peach aphids were sprayed with 1-ml portions of conidial suspensions containing 5 × 10⁷ conidia ml⁻¹ (A) and 1 × 10⁷ conidia ml⁻¹ (B), and the survival was recorded every day after inoculation. Control insects were sprayed with a conidial suspension prepared with the ectopic integration transformant T270 and sterilized water. For each treatment there were three replicates with 30 to 40 aphids each, and the experiments were repeated three times.