Schwehr , R.D. and Gardner, W.A. (1982) Disease incidence in fall armyworm and corn earworm populations attacking grain sorghum. Journal of the Georgia Entomological Society, 17 (1). pp. 38-46.
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Abstract
A survey of entomopathogenic organisms affecting Spodoptera frugiperda (J.E. Smith) and Heliothis zea (Boddie) on sorghum was carried out in Georgia, USA, in 1979--80. A nuclear polyhedrosis virus was the most common pathogen observed in S. frugiperda attacking the crop at the whorl stage, resulting in 38% mortality in 1979 and 50% mortality in 1980. Other pathogens observed in the pest on sorghum whorls included a granulosis virus, Nomuraea rileyi, Entomophthora aulicae and a microsporidium. Infection by a nuclear polyhedrosis virus caused up to 80% mortality in larvae of H. zea collected from sorghum grain heads in September 1979, and N. rileyi and a granulosis virus were also present in these larvae. Larvae of S. frugiperda on sorghum heads were affected by both types of virus and by N. rileyi
| Item Type: | Article |
|---|---|
| Author Affiliation: | Georgia University, College of Agriculture Experiment Stations, Georgia Station, Experiment, GA 30212, USA |
| Subjects: | Plant Protection Beneficial Insects |
| Divisions: | Sorghum |
| Depositing User: | Mr B Krishnamurthy |
| Date Deposited: | 06 May 2012 13:48 |
| Last Modified: | 06 May 2012 13:48 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/5038 |
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