Bisane, K.D. and Katole, S.R. (2008) Life table studies of Helicoverpa armigera (Hubner) on pigeonpea. Indian Journal of Entomology, 70 (4). pp. 350-355.
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Abstract
Life tables for determining mortality factors of Helicoverpa armigera on pigeon pea were prepared during 2004-05 and 2005-06. In the life table of absolute population of field-collected life stages, egg non-viability was 9.35%, whereas, smaller larvae was the most vulnerable stage as parasitoids accounted for 37.70% mortality. Highest parasitization (15.58%) was recorded due to Eriborus argenteopilosus followed by Campoletis chlorideae (5.53%) and Bracon sp. (4.02%). In bigger and prepupal larvae, tachinid fly caused 7.37 and 5.38% parasitization respectively. Besides, HaNPV disease contributed to 2.52 and 0.49% reduction of smaller and bigger larvae respectively. Pupal suppression was 30.0% on pigeon pea, where tachinid fly resulted in the highest mortality of 12.73%. Life table from field collected eggs revealed the highest mortality 13.47% in egg stage on pigeon pea and artificial diet. Similarly in laboratory cultured eggs on pigeon pea and artificial diet, egg stage showed maximum population reduction of 10.19 and 10.94%, respectively, followed by the first instar larvae and pupal stage. The maximum generation survival of H. armigera was more on artificial diet than pigeonpea.
| Item Type: | Article |
|---|---|
| Author Affiliation: | Department of Entomology, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola, India |
| Subjects: | Plant Protection > Pesticides Plant Protection > Pests |
| Divisions: | Pigeonpea |
| Depositing User: | Mr B Krishnamurthy |
| Date Deposited: | 12 Dec 2010 22:33 |
| Last Modified: | 29 Dec 2010 19:52 |
| Official URL: | http://www.indianjournals.com/ijor.aspx?target=ijo... |
| URI: | http://eprints.icrisat.ac.in/id/eprint/975 |
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