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A field experiment was carried out to study the population dynamics and bionomics of gram pod borer Helicoverpa armigera (Hubner) in chickpea at Agronomy farm and laboratory, S K N College of Agriculture, Jobner, Jaipur (Rajasthan) during rabi 2021-22. The data revealed that the first appearance was in 50th standard meteorological week (SMW) and attained peak in 8th SMW. Statistical analysis of weather parameters with larval incidence showed significant positive correlation only with maximum temperature (r = 0.56*). The biological traits of H. armigera has been studied at 20± 1°C coupled with 60± 5% RH and 12 L: 12 D photoperiod in the laboratory revealed that the single female produced 445.25± 50.02 eggs; incubation period ranged from 3.92± 0.81 days; hatchability was 78.611± 9.73%; larvae passed through five instars and total larval duration lasted 12 to 21 days; pupal stage varied from 10 to 17 days; and total life cycle took 44 to 66 days; longevity of male and female moths varied from 5.42± 1.28 and 8.52± 1.72 days, respectively.
Kumawat et al. (Mon,) studied this question.
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