Suppression of Powdery Mildew in Okra and Sunflower Plants under Natural Infection through Peroxyacetic Acid Foliar Application | ||
| Egyptian Journal of Phytopathology | ||
| Article 7, Volume 45, Issue 2, December 2017, Pages 93-102 PDF (315.89 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejp.2017.88586 | ||
| Author | ||
| Anwar Galal* | ||
| Plant Pathology Dept., Faculty of Agriculture, Minia University, Minia, Egypt | ||
| Abstract | ||
| Application of an eco-friendly hydrogen peroxide-based compound peroxyacetic acid (PAA), to leaves of okra and sunflower plants significantly reduced infection with powdery mildew. The maximum percent disease control was recorded with acetic acid (AA) + hydrogen peroxide (H2O2) mixture at 0.2g/l AA + 2.0g/l H2O2 concentration, being 69.28 and 70.07 %, when okra and sunflower plants were sprayed three times, respectively along 2 growing seasons. Decreasing sprayings and mixture concentration reduced percent of powdery mildew control. Accordingly, PAA showed a beneficial role to control powdery mildew of either okra or sunflower plants. Thus, PAA could be recommended for integrated disease management program (IDM) against powdery mildew of okra and sunflower | ||
| Keywords | ||
| Abelmoschus esculentus; Erysiphe cichoracearum; Golovinomyces cichoracearum; Helianthus annuus; Okra; peroxyacetic acid; powdery mildew and sunflower | ||
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