Sigsgaard , L. (1996) Natural Regulation of Helicoverpa Armigera: Predation of Eggs and Young Larvae in Sorghum-Pigeonpea Intercropping. PhD thesis, Royal Veterinary and Agricultural University.
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Abstract
Helicoverpa armigera (Hubner) (Lepidoptera: Noctuidae) has one of the widest distributions among agricultural pests. It is highly polyphagous and mobile (including migration) and has a high fecundity. However, H. armigera is specialized in the sense that it attacks the protein rich plant parts, especially buds, flowers and hits. High levels of resistance to insecticides in H armigera populations are reported every year in India. This has led to increased interest in other control measures.
| Item Type: | Thesis (PhD) |
|---|---|
| Additional Information: | Many persons have helped and supported me during this research project. First of all, I wish to thank my supervisor Prof.Dr.P. Esbjerg for his invaluable supervision, guidance and support throughout the period of research and during the preparation of this thesis. I also wish to thank Dr.K.F. Nwanze, Head of Entomology section, Plant Protection Division at International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, India, for his supervision and support during my stays at ICRISAT. Special thanks to M.Sc.P. Geetanjali for practical assistance during experiments. Thanks also to ICRISAT and KVL for hosting the project. |
| Author Affiliation: | Royal Veterinary and Agricultural University |
| Subjects: | Plant Production Plant Protection |
| Divisions: | Pigeonpea Sorghum |
| Depositing User: | Mr Arbind Seth |
| Date Deposited: | 28 Jul 2013 10:50 |
| Last Modified: | 28 Jul 2013 10:50 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/11228 |
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