MANAGEMENT OF POWDERY MILDEW OF MUSKMELON THROUGH CHEMICALS AND PLANT EXTRACTS

Abstract

Different plant extracts and chemicals were evaluated against powdery mildew of muskmelon under field condition, in experimental area of Department of Plant Pathology, University of Agriculture Faisalabad. A highly susceptible variety Toma was grown in field to check the efficacy of different plant extracts and chemicals against powdery mildew. Three concentrations 5, 10 and 15% of five plant extracts were used to manage the disease. Among them Garlic gave best results at each concentration. After third spray at 15%concentration Garlic (Allium sativa) reduced 16.57% disease incidence, followed by Neem (Azadirachta indica) 19.45%, Eucalyptus (Eucalyptus camaldulensis) 26.75%, Onion (Allium cepa) 30.47% Ginger (Zingiber officinale) 33.12%, disease incidence as compare to control. Three concentrations 1.75, 2 and 2.5% of five chemicals were used to manage the disease. Among them Score gave best results at each concentration. After third spray at 2.5% concentration Score (Difnoconazole) expressed significant results, after third spray disease incidence was 15.35% followed by Baytan Foilar(Triadimimenal) 18.45%, Mancozeb (Mancozeb) 25.43%, Aliette (Fosetyl-aluminium) 29.40%, Sulfex gold(Sulphur) 31.51% disease incidence as compare to control.