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Mehrvar, A.
- Management of Helicoverpa armigera (Hubner) (Lepidoptera: Noctuidae) Using its Nucleopolyhedrovirus (HearNPV) Formulations Applied by Different Methods on Tomato
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PDF Views:109
Authors
Affiliations
1 Department of Plant Protection, University of Maragheh, Maragheh, IR
2 Biological Control (ICAR), Post Bag No. 2491, H. A. Farm Post, Bellary Road, Hebbal, Bangalore 560024, Karnataka, IN
3 Biocontrol Research Laboratories, Pest Control (India) Pvt. Ltd., Bangalore 560064, Karnataka, IN
1 Department of Plant Protection, University of Maragheh, Maragheh, IR
2 Biological Control (ICAR), Post Bag No. 2491, H. A. Farm Post, Bellary Road, Hebbal, Bangalore 560024, Karnataka, IN
3 Biocontrol Research Laboratories, Pest Control (India) Pvt. Ltd., Bangalore 560064, Karnataka, IN
Source
Journal of Biological Control, Vol 23, No 2 (2009), Pagination: 145-149Abstract
Efficacy of some adjuvants against Helicoverpa armigera on tomato when applied with NPV formulations and sprayed by two different equipments (controlled droplet applicator and backpack hydraulic sprayer) was evaluated. Results showed that H. armigera populations could be effectively controlled by the virus on tomato. The data on larval population, fruit damage, and yield indicated that adjuvants could enhance significantly the efficacy of the virus preparations and there was no significant difference between application methods.Keywords
Adjuvants, Field Efficacy, Helicoverpa armigera, Nucleopolyhedrovirus, Sprayer and Tomato.Full Text
References
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- Muthuswami, M., Rabindra, R.J. and Jayaraj, S. 1994. Evaluation of certain adjuvants as phagostimulants and UV protectants of nuclear polyhedrosis virus of Helicoverpa armigera (Hbn.). Journal of Biological Control, 8: 27-33.
- Narayanan, K. and Gopalkrishnan, C. 1990. Integrated control of Heliothis armigera (Hübner) with their pathogens and pesticides in certain Horticultural crops, pp 165-176. In: Jayaraj, S., Uthamasamy, S. and Gopalan, M. (Eds.). Heliothis management, Proceedings of National Workshop, Tamil Nadu Agricultural University, Coimbatore. India.
- Rabindra, R. J. and Jayaraj, S. 1988. Efficacy of nuclear polyhedrosis virus with adjuvants as high volume and ultra low volume applications against Heliothis armigera (Hbn.) on chickpea. Tropical Pest Management, 34: 441-444.
- Rabindra, R. J. and Jayaraj, S. 1995. Management of Helicoverpa armigera with nuclear polyhedrosis virus on cotton using different spray equipment and adjuvants. Journal of Biological Control, 9: 34-36.
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- Sivaprakasam, N. 1998. Control of tomato fruit borer (Helicoverpa armigera) by nuclear polyhedrosis virus in comparison with other treatments. Indian Journal of Agricultural Sciences, 68: 801-802.
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- Effect of Vegetable Oils on the Yield of Nucleopolyhedrovirus of Helicoverpa armigera (HearNPV)
Abstract Views :228 |
PDF Views:121
Authors
Affiliations
1 Department of Plant Protection, University of Maragheh, Maragheh 5518183111, IR
2 National Bureau of Agriculturally Important Insects, Post Bag No. 2491, H. A. Farm Post, Bellary Road, Hebbal, Bangalore 560024, Karnataka, IN
3 Biocontrol Research Laboratories, Pest Control (India) Pvt. Ltd., Bangalore 560064, Karnataka, IN
1 Department of Plant Protection, University of Maragheh, Maragheh 5518183111, IR
2 National Bureau of Agriculturally Important Insects, Post Bag No. 2491, H. A. Farm Post, Bellary Road, Hebbal, Bangalore 560024, Karnataka, IN
3 Biocontrol Research Laboratories, Pest Control (India) Pvt. Ltd., Bangalore 560064, Karnataka, IN
Source
Journal of Biological Control, Vol 23, No 3 (2009), Pagination: 295-300Abstract
Effect of dietary incorporation of three vegetable oils, viz., sunflower, soybean and coconut, on the yield productivity of seven geographic isolates of nucleopolyhedrovirus of Helicoverpa armigera at 1965.78 OB/mm2 was evaluated to select the most efficient vegetable oil and the highly promising virus isolate(s). Among the seven isolates, Coimbatore isolate recorded the highest yield of 6.895 x 109 OB/larva, followed by Negamum, Ooty, Parbhani, Mumbai, Hyderabad and Rahuri, when the larvae were fed with virus inoculated standard diet without vegetable oils. Among the different oils tested, sunflower oil enhanced the larval mortality (92.03-94.07% for different isolates tested). However, the yield of virus per larva was significantly increased when both sunflower oil and soybean oil were used as additives along with standard diet. The productivity ratio was also highest when both sunflower oil and soybean oil were used as additives in all the isolates tested. So it can be concluded that sunflower oil can be used as a dietary adjuvant in HearNPV production systems.Keywords
Helicoverpa armigera, Mass Production, Nucleopolyhedrovirus and Vegetable Oils.Full Text
References
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- Effect of Natural Sunlight on the Activity of Different Geographic Isolates of Nucleopolyhedrovirus of Helicoverpa armigera (Hubner)
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PDF Views:110
Authors
Affiliations
1 Department of Plant Protection, M.H.E.C, University or Tabriz, Tabriz-5166616471, IR
2 Project Directorate of Biological Control, Hebbal, Bangalore - 560024, Karnataka, IN
3 Biocontrol Research Laboratory, Pest Control India, Bangalore - 560064, Karnataka, IN
1 Department of Plant Protection, M.H.E.C, University or Tabriz, Tabriz-5166616471, IR
2 Project Directorate of Biological Control, Hebbal, Bangalore - 560024, Karnataka, IN
3 Biocontrol Research Laboratory, Pest Control India, Bangalore - 560064, Karnataka, IN
Source
Journal of Biological Control, Vol 21, No 2 (2007), Pagination: 235-239Abstract
Susceptibility of seven geographic isolates of Helicoverpa armigera NPV to sunlight was evaluated by subjecting them to different exposure times (0, 3, 6. 12, 24 and 36 hours). The viral dose of exposure was 1 × 107 POB/ml and bioassays were performed at a dose of l × 105 POB/ml of each virus isolate. The study showed that exposure to natural sunlight affected the activity of the different HearNPV isolates. About six hours of exposure reduced the activity of the viral isolates by nearly 50 percent. By 36 hours, all the isolates had lost their activity by about 70 percent. There were no significant differences in the susceptibility of different isolates to natural sunlight. However, NGM isolate showed the lowest inactivation after 36 hours of exposure. Time-mortality response of HearNPV isolates indicated that exposure to natural sunlight beyond 12 hours declined the viral activity to the extent of 50 percent. The order of IT50 values for the isolates was Negamum > Ooty > Coimbature > Mumbai > Parbhani > Hyderabad > Rahuri.Keywords
Geographic Isolates, Helicoverpa armigera, Natural Sunlight, Nucleopolyhedrovirus, Persistence.Full Text