Effect of Several Stress Factors on the Susceptibility of the Predatory Insect, 'Chrysoperia carnea' (Neuroptera: Chrysopidae), to the Fungal Pathogen 'Beauveria bassiana'

摘要

Temperature, starvation, and nutritional stresses, applied singly and in combination, significantly affected the susceptibility of Chrysoperla carnea to Beauveria bassiana and varied in effectiveness according to insect age and gender. The nutrition stress caused the most significant increase in adult and larval mortality and larval developmental failure. Larval mortality and developmental failure were also increased by the starvation stress. The temperature stress affected C. Carnea mortality only when used in combination with nutrition and/or starvation. Possible mechanisms for the effects of the stresses on C. carnea response to B. bassiana are discussed.