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Epidemiological studies of Okra Yellow Vein Mosaic Virus (OYVMV) and its management strategies


The International Journal of Global Sciences (TIJOGS)

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Mirza Waqas Safder1*, M. Usman1, H. Ehtsham Ali2, Muhammad Jabran1, Rahmatullah Samil1, Aboomer1, Ahsan Abdullah1and Sadia Latif1

*Corresponding author: mirzawaqas607@gmail.com

Submitted Accepted Published
Oct 17,2018 Feb 02,2019 Feb 27,2019

2019 / Vol: 2 / Issue: 1


Abstract


Okra (Abelmoschus esculentus) is known as lady finger and is an important vegetable crop in Pakistan. In this experiment twelve (12) different varieties Ok-4108, Rohi-211, Ok-suraksh, Sabz pari, Patal, Pusa Makhmali, Bhindi Punjab, /Rupa-14, Ok-404, Ok-Nayab, OH-8418, G-Ho were screened against OYVMV. No variety showed resistant response against OYVMV, while three (03) showed moderately resistant response, four (04) varieties showed moderately susceptible response and five (05) varieties showed susceptible response against OYVMV. There was a close relationship between disease and environment, climate change effect the increase or decrease of disease under field conditions. For disease development, temperature has a great influence and addition of stress may led to the reduction of host immunity against okra yellow vein mosaic virus. In case of rainfall non-significant correlation was observed and increase in disease was observe with the minimum temperature, maximum temperature, wind speed and relative humidity and significant correlation was observed. Two plant extracts Neem (Azedarchta Indica) @ 500mlBakain (Melia azedarch) @500ml and one insecticide imadicloprid with one control were assessed against OYVMV on four cultivars i.e. Bhindi Punjab, Rupa- 14, Rohi- 211, Sabz pari which were sown in the research area of Department of Plant Pathology, University of Agriculture Faisalabad. Imadicloprid showed best results to manage OYVMV followed by neem and bakain extracts. While neem extract also showed good results to manage the disease.

Key words: Okra, plant extracts, insecticide, okra yellow vein mosaic virus (OYVMV)


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