Abstract: Tomato leaf curl and Alternaria leaf blight are the most serious diseases of the tomato crop in Sudan. The present study was conducted in the winter season, to evaluate the effect of covering the tomato seedlings with mosquito nets in the nursery and frequently spraying with confidor insecticide. After six weeks the seedlings were transplanted into three farmers fields in three locations north of Khartoum; namely Saggai, Karary and Shambat, to serve as demonstration plots for the tomato growers in each locality. The results revealed significant decrease in the leaf curl disease incidence by 47.3%, 30.7% and 29.3% at Saggai, Karary and Shambat locations, respectively. The results of field spraying with Amstar Top fungicide in the farmer's fields decrease the incidence of early blight by 10.3%, 15.0% and 13.8% at Karary, Saggai and Shambat, respectively. The combined effects of covering the tomato seedlings in the nursery and fungicide spraying in the field resulted in significant increase in tomato yield at Karary and Saggai by 25.5% and 39.2%, respectively, but the increase in yield at Shambat was not significant due to the abnormal inoculum pressure on the plot. The farmers at Karary and Saggai have already adopted the present disease control techniques.
Keywords: Tomato; Insecticides; Alternaria; Khartoum State.
Title: Field Assessment of the insect proof net and pesticide treatments for the control of two tomato diseases
Author: Ahmed Hashim Ahmed, Mohamed Osman Idris, Jamal Mohamed Abdolmoula, Tarig Alsadig Mohammed
International Journal of Life Sciences Research
ISSN 2348-313X (Print), ISSN 2348-3148 (online)
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