Abstract: Okra Leaf Curl Virus (OLV) disease is considered the most important disease of Okra in the Sudan. Two field experiments were conducted in Shambat (Northern Khartoum - Sudan) for the control of this disease by the exclusion of Whitefly (Bemisia tabaci) Vector. In one experiment the okra. Seedlings were covered with the mosquito nets for 40 days before transplanting and in the other experiment the okra seedlings were drenched with the systemic Actara insecticide (25% WG) for seven weeks after transplanting at weekly intervals. The covered technique resulted in 50% OLCV disease incidence while the drenching trial resulted in 55% disease incidence. The control (untreated) resulted in 75% disease incidence. Similarly the disease severity was higher than that obtained from the untreated control. The yield of previously covered and drenched treatments resulted in 6.53 tan/ha and 5.89 ton/ha respectively. The control treatment resulted in 3.56 tan/ha. Moreover, good quality okra pods were obtained from the treated treatments. The results of the present work are considered the first record for controlling OLCV disease in okra in the Sudan.
Keywords: Leaf Curl; Okra Control; Vector Exclusion; Virus Disease.
Title: Exclusion Techniques for the Control of Okra (Abelmoschus esculentus) Leaf Curl Virus Disease in Sudan
Author: Ahmed Hashim Ahmed, Marwa Siddig A. Eltayeb
International Journal of Life Sciences Research
ISSN 2348-313X (Print), ISSN 2348-3148 (online)
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