The lettuce aphid is an economically
important pest of lettuce worldwide.
Beauveria bassiana can potentially be
used for lettuce aphid biocontrol.
Young aphids were generally less
susceptible to B. bassiana than older
aphids.
B. bassiana significantly decreased the
rate of lettuce aphid nymph
production.
Persistence of viable spores was
positively correlated with spore
infectivity.