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Comparative Efficacy of Different Plant Extracts to Manage the Cotton Leaf Curl Virus Disease and its Vector (Bemisia tabaci L.)

Comparative Efficacy of Different Plant Extracts to Manage the Cotton Leaf Curl Virus Disease and its Vector (Bemisia tabaci L.)

Waseem Abbas1, Shakeel-ur-Rehman2, Abdul Rashid2, Muhammad Kamran3, Muhammad Atiq2 and Muhammad Ehetisham ul Haq3* 

1Vegetable Research Institute, Ayub Agricultural Research Institute, Faisalabad, Pakistan; 2Department of Plant Pathology, University of Agriculture, Faisalabad, Pakistan; 3Plant Pathology Research Institute, Ayub Agricultural Research Institute, Faisalabad, Pakistan.

haq.uaf@gmail.com  

ABSTRACT

Cotton is the king of fibers and it is an important cash crop of tropical and subtropical regions. The present research was carried out to evaluate the comparative efficacy of different against the cotton leaf curl virus vector (Bemisia tabaci) and indirectly the disease incidence. Leaves extracts of four plant extracts i.e. Calotropis gigantea, Zingiber officinale, Allium cepa and Azadirachta indica were evaluated at 3 % concentration against eggs hatchability and adult emergence of the whitefly in lab condition. Two consecutive sprays were applied to assess the relative impact of different plant extracts against adult whitefly population and the disease incidence of cotton leaf curl virus disease in filed conditions. Azadirachta indica was found most effective to inhibit the egg hatchability and adult emergence as compared to other plant extracts applied in lab conditions. In field conditions, Azadirachta indica was found most effective to minimize whitefly population and to lower the disease incidence. From the present study, we may conclude that the leaf extract of Azadirachta indica at 3% concentration may be used to minimize the whitefly population and to lower the disease incidence of cotton leaf curl virus disease under filed conditions. 

 

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Pakistan Journal of Zoology

February

Vol. 52, Iss. 1, Pages 1-424

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