Vol. 7, Issue 2 (2019)
Pest population incidence and severity in relation to weather parameters at different phenophases of chickpea (Cicer arietinum L.)
Author(s): Vivesh Singh, SR Mishra, Rajan Chaudhari, Anil Nishad and Nitish Kumar
Abstract: The present investigation entitled “Pest population incidence and severity in relation to weather parameters at different phenophases of chickpea (Cicer arietinum L.)†was conducted during rabi season of 2006-07 at Instructional Farm of Narendra Deva University of Agriculture and Technology, Narendra Nagar (Kumarganj), Faizabad: to study the pest population incidence and severity (dynamics of pod borer) in relation to weather parameters at different phenophases of the crop and to assess the yield losses caused by pod borer under variable weather conditions and also to record the effectiveness of pod borer in different cultivars of chickpea. Experiment was conducted in Split Plot Design with four sowing with dates/sowing temperature viz. October 15, 06 with sowing temperature 30.3 oC October 30, 06 with sowing temperature 30.5 oC November 15, 06 with sowing temperature 28.9 oC November 30, 06 with sowing temperature 25.8 oC and three varieties viz. Awarodhi (V1) Radhey (V2) and Uday (V3). Insect react to external heat changes. The oviposition is held within certain temperature limits. Adult H. armigera larvae active during morning to mid-day when the sky is clear and temperature is high. The activity with reduction in light intensity and stops in the evening. Peak period of larval population was recorded twice during the entire crop season first from 13th November to 3rd December and second from (22nd January to 31 March). First incidence was recorded on the 25th October in the experimental plots. Peak period of larval population was recorded twice during the entire crop season, first from 13th November to 3rd December and second from 22nd January to 31st March.
Pages: 150-153 | 599 Views 59 Downloads
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How to cite this article:
Vivesh Singh, SR Mishra, Rajan Chaudhari, Anil Nishad, Nitish Kumar. Pest population incidence and severity in relation to weather parameters at different phenophases of chickpea (Cicer arietinum L.). Int J Chem Stud 2019;7(2):150-153.
