An evaluation on efficacy of five fungicides against rose powdery mildew
1980
Niphon Visarathanonth | Anusorn Wichiencharoen
Five fungicides: Rubigan (EL-222) 12.5 EC, Afugan 30 EC, That-gro 52 F, Antigro 2.1 WP and Bayleton 25 WP were applied for the rost powdery mildew control. Five categories of symptom evaluation from 0-4 were considered to evaluate the effectiveness of each fungicide. Zero represented non diseased where as 1-4 was light to heaviest disease symptom. The efficacy of the five fungicides was evaluated by the mean percentage of disease control (MPDC). The MPDC for Rubigan is 66.27, 38.28 for Afugan, 7.43 for That-gro, 35.23 for Antigro and 18.27 for Bayleton.
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