A study on soil solarization and combined with fumigant application to control Phytophthora crown blight (Phytophthora capsici Leonian) on peppers in the East Mediterranean region of Turkey
1995
Yucel, S. (Plant Protection Research Inst., Adana (Turkey))
Field trials conducted in the pepper growing area (Icel/Turkey) showed that solarization alone and combined with a reduced dose of methyl bromied (40 g/square m), were effective in controlling grown blight disease caused by Phytophthora capsici. Solarization was achieved by covering plots with a clear polyethylene sheet, 0.03 mm thick for 8 weeks. The temperature reached 47 deg C and 35 deg C at 5 cm and 30 cm soil depth, respectively, an average of 3-8 deg C higher than those at equivalent depths in the untreated plots. The average incidence of the disease in solarization plus a reduced dose of methyl bromide, the recommended dose of methyl bromide, solarized and untreated plots in 1991 and 1992 were 17.6 and 13.3%; 20.8 and 16.8%; 24.1 and 19.7%; 39.8 and 42.9%, respectively. All treatment significantly reduced disease incidence
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