Syngenta Ridomil Gold Fungicide

Ridomil Gold is a well-known fungicide containing two active ingredients: metalaxyl (4%) and mancozeb (64%). Due to the high concentration of these ingredients, even a 0.25% solution is highly effective. To prepare this solution, mix 2.5 grams of the fungicide in 1 liter of water. For a 15-liter solution, use 37.5 grams, and for a 200-liter solution, use 500 grams. Apply this solution as a spray or drench, depending on the symptoms observed on the crop.

Examples of Use:

• Spraying:
  • For yellow spots on grape leaves (downy mildew).
  • For potato leaf blight (late blight).
  • For yellow spots and white patches on mustard leaves (downy mildew and white rust).
  • For spots on pomegranate leaves and fruits.
• Spraying and Drenching:
  • For black pepper stem rot (foot rot).
• Drenching:
  • To prevent chili plant wilting (damping off).

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Metalaxyl 4%+Mancozeb 64% WP (Ridomil Gold) by Syngenta

Generally recommended as foliar spray @ 0.25% for control of downy mildew in Grapes, late blight in potato, phytophthora foot rot in Black pepper (0.25 % solution in 2 L/vine as folliar spray and 3 L/vine as soil drench), downey mildw and white rust in mustard, damping off in Chilli nursery (soil drenching of 0.3% solution), leaf spot and fruit spot in pomegranate

Downy mildew is a major disease of grapes. The fungus causes rotting in inflorescences, berries, clusters and shoots. Can cause premature defoliation of vines due to foliar infections.

Late blight in potato is caused by the fungus Phytophthora infestans. This is the most important disease of potato that can result into crop failures in a short period if appropriate control measures are not adopted. Losses in yield can go upto 80% when epidemic spreads.

Phytophthora foot rot in Black pepper: The stem near the ground level get infected and the rotting and death of vine occurs within 2-3 weeks. The affected portion emits bad odour. The necrosis progress down wards to the underground stem and to the root system.

Downey mildw and white rust in mustard: In systemic infection and during humid weather, mixed infection of white rust and downy mildew cause swelling and distortion of the stem and floral parts due to hypertrophy and hyperplasia and develop “stag head” structure.

Damping off in Chilli nursery: The populations in nursery seedlings die due to this diseases. Mycelium are hyaline and Aseptate and its has width size 5 micron. Irregular mycelial fibers grown and thus produce irregular shape spores.

Leaf spot and fruit spot in pomegranate: Spots are scattered, circular or irregular and become dark brown with age. Spots on lower side are sunken with clusters of spore bearing structures hence greyish in colour. Minute, circular, black spots appear on sepals of the flower. Fruit spots are black, minute and circular on rind.

Details: Syngenta Ridomil gold Fungicide 500 Gram Specific fungicide for control of oomycetes fungi (e.g. late blight and downy mildew diseases). Can be applied to foliage, soil or as a seed treatment. Key crops: potatoes, grapes, tobacco, vegetables, citrus, tomato, turf and ornamental.