Efficacy of Different Essential  Oils Against Nymphal Stage of Aphid  (Aphis craccivora Koch) in Green  Gram (Vigna radiata L.)

Siranjib Sonowal; Prarthna Rajkumari; Nirmali Borah; Budha Bora; Pranjal Pratim Neog; Birinchi Kumar Borah

doi:10.9734/ijecc/2023/v13i123704

Research Article Open access CC BY 4.0

Efficacy of Different Essential Oils Against Nymphal Stage of Aphid (Aphis craccivora Koch) in Green Gram (Vigna radiata L.)

Siranjib Sonowal, Prarthna Rajkumari, Nirmali Borah, Budha Bora, Pranjal Pratim Neog, Birinchi Kumar Borah

International Journal of Environment and Climate Change · pp. 473–478 · Published 21 Dec 2023

10.9734/ijecc/2023/v13i123704

Abstract

Aims: Study the mortality rate of aphid, Aphis craccivora Koch when treated with different essential oils against the nymphal stage. Study Design: Complete randomized design. Place and Duration of Study: Biswanath College of Agriculture, Biswanath Chariali during 2022-23 Methodology: All essential oils were applied at three different concentrations viz., 1%,3% and 5% and recorded the mortality percentage after 4,12, 24, 48 and 72 hours of application. Results: The result showed that neem oil had the best effect on the mortality of nymph (96.67%,100%,100%) in 1,3 and 5 per cent concentration after 72 hours after treatment. The second highest mortality was recorded against nymphs in mint oil (83.33%) followed by clove (80.00%), garlic (76.67%), ginger (73.33%) and eucalyptus (66.67%) oil against nymphs at 72 hours after treatment. Conclusion: In the present study essential oils showed that mortality rate increased with increasing concentration and times.

Aphis craccivora essential oil mortality nymph treatment

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Siranjib Sonowal, Prarthna Rajkumari, Nirmali Borah, Budha Bora, Pranjal Pratim Neog, Birinchi Kumar Borah (2023). Efficacy of Different Essential Oils Against Nymphal Stage of Aphid (Aphis craccivora Koch) in Green Gram (Vigna radiata L.). International Journal of Environment and Climate Change , 473–478. https://doi.org/10.9734/ijecc/2023/v13i123704

Affiliations

Siranjib Sonowal — Department of Entomology, Biswanath College of Agriculture, Assam Agricultural University, India.
Prarthna Rajkumari — Department of Entomology, Biswanath College of Agriculture, Assam Agricultural University, India.
Nirmali Borah — Department of Entomology, Biswanath College of Agriculture, Assam Agricultural University, India.
Budha Bora — Department of Plant Pathology, Biswanath College of Agriculture, Assam Agricultural University, India.
Pranjal Pratim Neog — Department of Nematology, Biswanath College of Agriculture, Assam Agricultural University, India.
Birinchi Kumar Borah — Department of Entomology, Biswanath College of Agriculture, Assam Agricultural University, India.

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