Volume 8, Issue 3 (2019)                   JCP 2019, 8(3): 361-371 | Back to browse issues page

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Gacemi A, Taibi A, Abed N E H, M'hammedi Bouzina M, Bellague D, Tarmoul K. Effect of four host plants on nutritional performance of cotton leafworm, Spodoptera littoralis (Lepidoptera: Noctuidae). JCP. 2019; 8 (3) :361-371
URL: http://jcp.modares.ac.ir/article-3-23029-en.html
1- Department of Agronomic Sciences and Biotechnology, Faculty of Natural and Life Sciences, Hassiba Benbouali, University of Chlef, Algeria. , abdelhamid_gacemi@yahoo.fr
2- Department of Agronomy, Faculty SNV/STU, University Aboubakr Belkaid, Tlemcen, Algeria.
3- National Institute of Agronomic Research of Algeria, Algiers, Algeria.
4- Department of Agronomic Sciences and Biotechnology, Faculty of Natural and Life Sciences, Hassiba Benbouali, University of Chlef, Algeria.
Abstract:   (1042 Views)
Effects of four vegetable host plants, artichoke, cabbage, potato and tomato on nutritional indices of the cotton leafworm Spodoptera littoralis (Boisduval) (Lep.: Noctuidae), were studied under laboratory conditions (25 ± 1 °C, 65 ± 5% RH, with a 16: 8 L: D photoperiod). Fourth instar reared on tomato showed the highest approximate digestibility (AD) (90.406 ± 1.125%) and efficiency of conversion of ingested food (ECI) (30.249 ± 4.128%). The highest values of efficiency of conversion of digested food (ECD) and ECI of fifth instars (38.663 ± 4.34 and 20.083 ± 1.581%, respectively) were on artichoke and the lowest of both values on cabbage (ECD: 6.314 ± 1.128 and ECI: 5.448 ± 1.052%).The 3rd to 6th instars as a whole showed the highest ECD and ECI values on tomato (23.412 ± 2.252 and 19.845 ± 1.798%, respectively). However, the highest and lowest values of consumption index (CI) were on cabbage (33.943 ± 2.669) and tomato (6.145 ± 0.578). The highest values of relative consumption rate (RCR) and (AD) were obtained on cabbage (1.49 ± 0.109 mg/mg/day and 86.431 ± 1.141%, respectively). The results of nutritional indices and the cluster analysis indicate that tomato was nutritionally the most suitable food for S. littoralis.
 
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Article Type: Original Research | Subject: Host Plant Resistance to Insects
Received: 2018/07/12 | Accepted: 2019/06/16 | Published: 2019/07/31

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