Two applications of the fungicides Benlate®, Du Ter®, and Bravo®, and Benlate in combination with carbaryl were made to soybean. Infection of lepidopterous larvae by the entomogenous fungusNomuraea rileyi(Farlow) Samson was inhibited to some degree by application of Benlate ®, Du Ter®, and Bravo®. Bravo caused the most inhibition followed by Bentlate and Du Ter respectively. In one instance the combination of Benlate + carbaryl was more disruptive toN. rileyithan either chemical alone. Inhibition was greatest when pesticide application coincided with the early stages ofN. rileyiepizootics.