Title: Nomuraea rileyi (Farlow) Samson Incidence on Spodoptera litura and Spodoptera frugiperda in Andhra Pradesh
Abstract: Nomuraea rileyi is an important natural mortality causing agent of many lepidopterous pests in a variety of crop ecosystems throughout the world.The roving survey was conducted for the collection of Nomuraea rileyi infected lepidopteran caterpillars in field and horticultural crops in different Agroclimatic zones of Andhra Pradesh during September-October 2018; January-February 2019; September-October 2019 and January-February 2020.During the survey, it was found that the mean number of Nomuraea rileyi infected Spodoptera litura and Spodoptera frugiperda varied from 4.4 to 5.0 per square meter during September, 2018 and 2019 in Vishakapatnam distrcict in high altitude tribal zone.In Guntur district of Krishna zone mean number of Nomuraea rileyi infected larvae varied from 3.0 to 4.2 per square meter during January, 2019.In scarce rainfall zone of Kurnool district, the incidence of mean number of Nomuraea rileyi infected larvae varied from 2.2 to 4.0 per square meter during October 2019.In Chittoor of southern zone, mean number of Nomuraea rileyi infected larvae varied from 0.4 to 2.0 per square meter during October, 2019.The mean number of N. rileyi infected larvae of 0.2 per square meter during January, 2019 was noticed in Srikakulam district of north coastal zone.In Godavari zone incidence of Nomuraea rileyi infected larvae was not recorded.