Volume 6, Issue 4 (2-2016)                   ejgcst 2016, 6(4): 181-190 | Back to browse issues page



DOI: 10.18869/acadpub.ejgcst.6.4.181

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Mavandadi A, Khajehali J, Sharifnabi B. Efficacy of conventional fungicides in controlling tomato grey mold . ejgcst. 2016; 6 (4) :181-190
URL: http://ejgcst.iut.ac.ir/article-1-1095-en.html

Dept. of Plant Protection, College of Agric., Isfahan Univ. of Technol., Isfahan, Iran.
Abstract:   (1589 Views)

One of the important diseases of tomato plants is grey mold, which is caused by Botrytis cinerea. In this research, the effects of 10 fungicides on mycelial growth and conidia germination of B. cinerea were investigated. Results showed that carbendazim with a median inhibitory concentration (IC50) value of 0.1 mg/L had the highest inhibitory effect and bordeaux mixture with an IC50 value of 1096.9 mg/L had the lowest inhibitory effect. Benomyl with an IC50 value of 0.04 mg/L had the most visual effects, after 3 and 7 days, on mycelial growth of B. cinerea. The effect of fungicides on preventing fruit wound development caused by B. cinerea was investigated, too. In benomyl treatment, wound diameter on the fruits was 0.73 mm and in copper oxychloride treatment was 6.16 mm, showing the highest and the lowest effective fungicides in the prevention of wound expansion. Different strains of the fungus were collected from various areas in Isfahan province and the effect of the fungicides on their conidial germination was evaluated. Results revealed that the collected isolates had different susceptibility to the 10 tested fungicides.

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Type of Study: Research | Subject: Water Use Management
Received: 2016/02/2 | Accepted: 2016/02/2 | Published: 2016/02/2

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