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The 3rd International Conference of Agricultural Sciences 27-28 March, 2019
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Abstract

The present study has been conducted to isolate and identify the leaf fungal spot pathogens of eggplant at different regions of Basrah city and their  chemical  control. The results showed that the disease was spread at all regions cultivated with eggplant at Basrah province with infection percentages of 46.6-88.5%. The highest infection percent was recorded at Garmat Ali region (88.5%), while the lowest percent was recorded at the Agricultural station (46.6%). The highest percent of  disease severity (50 %) was recorded at Tomato Cultivars Breeding Project, while the lowest percent was recorded at Agricultural station (20%). Alternaria alternata, Cladosporium oxysporum and Curvularia lunata were isolated from the leaves infected with spot disease, the pathogenicity test revealed that all isolated fungi were pathogenic. C. oxysporum and C. lunata were recorded for the first time in Iraq as causal agents of eggplant leaf spot. The results showed that the fungicide Ortiva inhibited the growth of the fungi with an average of 95.7%, followed by Difecor ( 94.9%), additionally, it was noticed that all examined fungicides completely inhibited the growth of both C. oxysporum and C. lunata ( %100 for each one). The study revealed that the fungicide Ortiva significantly reduced the disease severity of eggplant leaf spot disease up to 11.6% compared with control treatment which was 25%. Finally the results explained that the fungicide Ortiva gave the best protection to eggplant which infected with leaf spot disease compared to the other fungicides, it achieved a best plant height, higher dry weight of shoot and root systems, higher leaf area and higher leaves number. Therefore it is recommended for controlling the spot disease.

Keywords

Eggplant Fungi Fungicides Leaf spot Ortiva

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How to Cite
Salih, Y. A. ., & Ridha, R. J. A. . (2019). A study of Eggplant Leaf Spot Disease in Greenhouses at Basrah Province. Basrah Journal of Agricultural Sciences, 32, 182–193. https://doi.org/10.37077/25200860.2019.165
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