Muhammad A. Umar, Muhammad A. Zeshan, Yasir iftikhar, Muhammad Umair, Muhammad U. Ghani, Rana Binyamin, Misbah Ali, Salman Ghuffar


Okra yellow vein mosaic virus (OYVMV) is vectored by sucking insect whitefly into the phloem of the okra plant. It devastates the fruit quality and production if infection started at early growth stages. Commonly, the virus is tried to manage by using chemical insecticides against the whitefly that has adverse effects on the ecosystem. The present study was to explore the non-chemical ways to fight against OYVMV and it vector. The available germplasm consisting of 11 cultivars was sown in augmented design to estimate the level of resistance under natural conditions where no whitefly control measure was used. Based upon the results of disease severity, the cultivars were categorized into highly resistant, resistant, moderately resistant, moderately susceptible, susceptible and highly susceptible; the most effective and highly resistant variety was “Sabz Pari” that showed minimum disease incidence (60.58%) and disease severity (7.72%). A separate experiment was conducted to evaluate the role of plant extracts in the management of OYVMV disease and whitefly where 5 moderately resistant to moderately susceptible varieties were sown. Among the plant extracts applied garlic extract showed more significant results in controlling whitefly (79.23%) and OYVMV transmission (88.27%). It could be concluded that “Sabz Pari” is the most suitable and high yielding okra variety against OYVMV disease and garlic extract could be applied as a best bio-pesticide against sucking insects.


Evaluation, Begomoviruses, Defense mechanism, Bio-pesticide

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Pakistan Journal of Phytopathology
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