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Journal of Pharmacognosy and Phytochemistry

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Journal of Pharmacognosy and Phytochemistry

Vol. 6, Special Issue 1 (2017)

Monitoring and seasonal incidence of gram pod borer (Helicoverpa Armigera Hubner) in relation to abiotic factor in chick pea

Author(s): Spoorthi GS, Rajendra Singh, SK Sachan, DV Singh, Ritesh Sharma and Sudhir Kumar
Abstract: A field experiments entitled “monitoring and seasonal incidence of gram pod borer (Helicoverpa armigera Hubner) in relation to abiotic factor in chick pea” were conducted during Rabi seasons of 2016-17 at Basmati Export Development Foundation (BEDF), Meerut-250110, (U.P.), India. The results indicated that larval population peaked in all control plots at11th standard weeks (18-24th April) when the maximum and minimum temperature 25.5 °C and 10.1 °C respectively, relative humidity 70.15% and rainfall 0.00 mm was recorded. However, lowest larval population of was recorded in the 52thstandard week (31-06 January) when the maximum and minimum temperature 21.6 °C and 8.2 °C respectively, relative humidity 82.05 per cent and rainfall were recorded 0.00 mm. Adult population peaked in all control plots at 9th standard weeks (4-10th March) when the maximum and minimum temperature 27.6 °C and 11.1 °C respectively, relative humidity 70.50% and rainfall 0.40 mm was recorded. The larval population exhibited positive correlation with maximum (r=0.5133) and minimum (r=0.5946) temperature, however, negative correlation between larval population with relative humidity (r= -0.3016) and rainfall (r=-0.0041) were observed. While, adult population exhibited positive correlation with minimum temperature (r=0.0309), relative humidity (r=0.2751) and rainfall (r=0.0942), however, negative correlation with relative humidity (r= -0.0725) was observed.
Pages: 490-494  |  561 Views  15 Downloads
How to cite this article:
Spoorthi GS, Rajendra Singh, SK Sachan, DV Singh, Ritesh Sharma and Sudhir Kumar. Monitoring and seasonal incidence of gram pod borer (Helicoverpa Armigera Hubner) in relation to abiotic factor in chick pea. 2017; 6(6S): 490-494.
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