Razinataj, M., Jokar, M., Mojeni, T., Heravi, P., Haghnama, K., Abravan, P. (2020). Evaluation of the Effectiveness of Some Synthetic Insecticides Against Cotton Bollworm, Helicoverpa armigera Hübner (Lepidoptera: Noctuidae). test, 13(4), 141-146. doi: 10.21608/eajbsa.2020.122635
Mohammad Razinataj; mahmoud Jokar; Taghi Mojeni; Parisa Heravi; Kianoosh Haghnama; Payam Abravan. "Evaluation of the Effectiveness of Some Synthetic Insecticides Against Cotton Bollworm, Helicoverpa armigera Hübner (Lepidoptera: Noctuidae)". test, 13, 4, 2020, 141-146. doi: 10.21608/eajbsa.2020.122635
Razinataj, M., Jokar, M., Mojeni, T., Heravi, P., Haghnama, K., Abravan, P. (2020). 'Evaluation of the Effectiveness of Some Synthetic Insecticides Against Cotton Bollworm, Helicoverpa armigera Hübner (Lepidoptera: Noctuidae)', test, 13(4), pp. 141-146. doi: 10.21608/eajbsa.2020.122635
Razinataj, M., Jokar, M., Mojeni, T., Heravi, P., Haghnama, K., Abravan, P. Evaluation of the Effectiveness of Some Synthetic Insecticides Against Cotton Bollworm, Helicoverpa armigera Hübner (Lepidoptera: Noctuidae). test, 2020; 13(4): 141-146. doi: 10.21608/eajbsa.2020.122635

Evaluation of the Effectiveness of Some Synthetic Insecticides Against Cotton Bollworm, Helicoverpa armigera Hübner (Lepidoptera: Noctuidae)

Egyptian Academic Journal of Biological Sciences. A, Entomology
Article 13, Volume 13, Issue 4, December 2020, Pages 141-146    PDF (449.63 K)
Document Type: Original Article
DOI: 10.21608/eajbsa.2020.122635
Authors
Mohammad Razinataj1; mahmoud Jokar1; Taghi Mojeni1; Parisa Heravi1; Kianoosh Haghnama2; Payam Abravan2
1Cotton Research Institute of Iran, Agricultural Research, Education and Extension Organization (AREEO), Gorgan, Iran
2Agricultural Jahad Organization of Golestan Province
Abstract
Cotton bollworm, Helicoverpa armigera Hübner (Lepidoptera: Noctuidae), is one of the most important and key pests of cotton in Iran. This study was carried out with the aim of investigating the efficacy of several different insecticides on cotton bollworm in three regions of Golestan province, Iran, in a completely randomized design with 4 replications and 7 treatments. Experimental treatments include: Proclame-Fit® 150 g/ha, Profenofos® 2.5 lit/ha, Cypermethrin® 150 ml/ha, Indoxacarb® 250 ml/ha, Karvin® 1.5 lit/ha, Fenpropathrin® 1 lit/ha and control (water without insecticide). Samplings unite of cotton bollworm larvae was 10 cotton plants per plot which were recorded the number of immature pests per plant at the before spraying, 3, 7, and 14 days after spraying. The larval mortality of treatments was modified by the Henderson-Tilton formula to determine the efficiency percentage. According to the results obtained in Bandar-e Gaz, Proclame-Fit® and Karvin® had the highest long-term effect 50.85% and 59.86%, respectively, and Profenofos® had a suitable short-term effect with 74.82% mortality percentage. In Gonbad-e Kavous, Proclame-Fit®, Profenofos® and Karvin® with 96%, 94.33 % and 80% have shown a suitable lethal-short-term effect on cotton bollworm larvae. In Ramian, Proclame-Fit®, Profenofos ® and Karvin ® showed the highest short-term effect on cotton bollworm larvae, 83.18 %, 88.97 % and 88.37%, respectively. Based on the results, to control cotton bollworm, Proclame-Fit ® and Profenofos® are recommended as appropriate insecticides with the recommended doses.
Keywords
Cotton; chemical control; Helicoverpa armigera
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