Location: Crop Bioprotection ResearchTitle: Sweet corn variety can influence the efficacy of Beauveria bassiana on European corn borers and fall armyworms
Submitted to: Entomological Society of America Annual Meeting
Publication Type: Abstract Only
Publication Acceptance Date: 6/8/2022
Publication Date: 11/13/2022
Citation: Dowd, P.F., Johnson, E.T. 2022. Sweet corn variety can influence the efficacy of Beauveria bassiana on European corn borers and fall armyworms [abstract]. Entomological Society of America Annual Meeting.
Technical Abstract: Plant resistance factors are known to affect the viability of insect fungal pathogens. Different plant varieties can have different levels of plant pathogen resistance, which could potentially influence efficacy of insect pathogens. Leaves from several sweet corn inbreds and hybrids were examined for their influence on the efficacy of two different commercial strains of Beauveria bassiana against European corn borers (Ostrinia nubilalis) and fall armyworms (Spodoptera frugiperda). Significant differences in mortality were noted for first instars on day two of assays of both insects species fed on treated leaves. There was some association between plant tissue resistance to Fusarium graminearum and efficacy of the B. bassiana treatments.