| Abstrakt: |
The experiment was done at RDIVFG Vidra in 2017. The objective was to develop treatment programs for control of pathogens Alternaria solani, Botrytis cinerea and Phytophthora parasitica which attacks the foliage and fruits of eggplants. The following treatment schemes were used: Variant 1 (T1. Bravo 500SC 0.2%, T2. Melody Compact 49WG 0.2%, T3. Bravo 500SC 0.2%, T4. Melody Compact 49WG 0.2%, T5. Ortiva Top 0.1%, T6. Bravo 500SC 0.2%); Variant 2 (T1. Cabrio Top 0.2%, T2. Melody Compact 49WG 0.2%, T3. Cabrio Top 0.2%, T4. Melody Compact 49WG 0.2%, T5. Ortiva Top 0.1%; T6. Cabrio Top 0.2%); Variant 3 (T1. Polyram DF 0.2%, T2. Melody Compact 49WG 0.2%, T3. Polyram DF 0.2%, T4. Melody Compact 49 WG 0.2%, T5. Ortiva Top 0.1%, T6. Polyram DF 0.2%); Variant 4 (untreated control). Six treatments were applied at 14 - 16 days. The pathogens attack had a slow evolution due to the maximum atmospheric humidity, relatively reduced from July to August (52.4-74.7%, average of 61.2%) and poor rainfall (15 mm in the first and last ten days of July and in 1-20 August). At the end of September, the frequency of the attacked fruits was 5.9% at Ph. parasitica and 8.1% at B. cinerea and the degree of attack of the pathogen A. solani 10.9%. Under these conditions, the average efficacy of the treatments ranged from 79.7% (V3) to 85.5% (V2). Among variants, the yields of field eggplant crop ranged from 3.872 kg/m2 (V3) to 3.972 kg/m2 (V2) and 3.450 kg/m2 for the untreated control. [ABSTRACT FROM AUTHOR] |
