Ridomil Gold

Manufacturer
SYNGENTA
Category
Fungicides
Registered until
Registration expired
Registration number
01516
Active materials
Links

A water dispersible granule formulation containing 4% w/w metalaxyl-M and 64% w/w mancozeb.

FOR USE ONLY AS AN AGRICULTURAL FUNGICIDE
For control of foliar and tuber blight in maincrop potatoes.

IMPORTANT: This information is approved as part of the Product Label. All instructions within this section must be carefully read in order to obtain safe and successful use of this product.
RIDOMIL GOLD is a water dispersible granule formulation containing 4% w/w metalaxyl-M and 64% w/w mancozeb. It has systemic and protective properties. Metalaxyl-M is a systemic fungicide which is rapidly absorbed and distributed throughout the plant and protects new growth produced after application. Mancozeb is a contact fungicide which provides a protective film over the plant.

DISEASE CONTROL
RIDOMIL GOLD controls Foliar and Tuber Blight (Phytophthora infestans), in main crop potatoes.

HARVEST INTERVAL
The following harvest intervals should be observed:
Potatoes: 7 days

GENERAL INSTRUCTIONS
- RIDOMIL GOLD must be applied as a preventative treatment before the onset of disease.
- Do not use RIDOMIL GOLD as a curative treatment.
- RIDOMIL GOLD should be applied from the start of the blight spray programme.
- Apply a maximum of 3 sprays of RIDOMIL GOLD.
- The first spray of RIDOMIL GOLD must be applied before the end of June at the latest or earlier if weather conditions suitable for blight are present.
- The last spray of RIDOMIL GOLD must be applied before August 1st.
- Subsequent treatments should be made using a contact fungicide starting no later than 7 days after the last RIDOMIL GOLD spray.
- Only contact fungicides should be used for all subsequent treatments following the final RIDOMIL GOLD application. Products containing phenylamide materials (e.g. Galben M etc.) must not be used.
- RIDOMIL GOLD should not be applied within 2–3 hours of rainfall or when rain is actually falling.
Timing
To achieve optimum protection it is vital that a full blight protection programme is started before the risk of blight infection occurs.
Protective spraying should commence:
1) Immediately the risk of blight occurs in the area irrespective of the growth stage of the crop. Normally in this situation a blight warning is issued by the Meteorological Service on a national or local level.
or
2) In the absence of blight risk in the area or a blight warning, spraying should commence as crops begin to meet along the row. The first spray of RIDOMIL GOLD should be applied before the end of June in this lower blight risk situation.

Water Volume
Apply RIDOMIL GOLD in a minimum of 200 litres of water per hectare.
Dose
Apply RIDOMIL GOLD at 2.5 kg per hectare.
Apply a maximum of 3 sprays of RIDOMIL GOLD.
Spray Interval
Spray every 10–14 days. Under high blight risk, the shorter 10 day interval should be used.
Blight protection programme
Potato crops must be carefully monitored during the complete period of the protection programme. If blight is identified in crops being treated with RIDOMIL GOLD, stop using the product immediately and apply a contact fungicide immediately.
The programme must then be continued using a contact fungicide at recommended intervals right to harvest. Do not in any circumstances return to a RIDOMIL GOLD programme or another phenylamide spray (e.g. Galben M).

MIXING AND SPRAYING
Make sure the sprayer is clean and set to give an even application at the correct volume.
Fill the spray tank with half the required volume of water and start agitation. Add the required quantity of RIDOMIL GOLD directly to the spray tank. Continue agitation whilst adding the rest of the water.
Always agitate the mixture thoroughly before use and continue agitation during spraying.
Thoroughly wash all spray equipment with water and a wetting agent immediately after use.

Registered for culturesRatePreharvest Interval
Potatoes2.5 kg7