Red Copper WGPlant Protection Product ComparisonPlant Protection Product ComparisonReport inaccuraciesReport inaccuracies

General Instructions for Grochem Red Copper WG Fungicide:

Mixing:

• Slowly pour Grochem Red Copper WG into the spray tank three-quarters filled with water.
• Keep the agitation system actively moving.
• Alternatively, premix in a bucket with water and add to the spray vat with agitation running.

Compatibility:

• Compatible with wettable powder formulations of most commonly used fungicides, insecticides, and miticides.
• DO NOT MIX WITH LIME SULPHUR OR OTHER HIGHLY ALKALINE MATERIALS.
• DO NOT MIX WITH PRODUCTS CONTAINING CALCIUM.

Wetting Agents:

• Wetting agent like SST Vitiwet is required when applying to BRASSICAS, FABA BEANS, PEAS, and ONION.
• Also required when applied as a concentrate spray or by aircraft.
• SST Vitiwet at label rates is suitable for these purposes.
• Add a wetting agent if required for other pesticides when not needed for Grochem Red Copper WG.

Application of Sprays:

Tree Crops and Vines: Dilute Spraying:

• Use a sprayer designed for high volumes, matched to the crop.
• Achieve even coverage throughout the crop canopy.
• Apply sufficient water to cover the crop to the point of run-off. Avoid excessive run-off.
• Determine water volume through tests or expert advice.
• Add the specified amount of product for each 100L of water.
• Spray to the point of run-off.
• Adjust dilute spray volume and sprayer setup as the crop grows.

Concentrate Spraying:

• Use a sprayer designed for concentrate spraying.
• Achieve even coverage throughout the crop canopy with chosen water volume.
• Determine appropriate dilute spray volume for the crop canopy to calculate concentrate mixing rate.
• Calculate concentrate rate based on dilute label rate and concentration factor.
• Adjust spray volume, product amount, and sprayer setup as the crop grows.

Example for Concentrate Spraying:

• Dilute spray volume: e.g., 1500L/ha
• Chosen spray volume: e.g., 500L/ha
• Concentration factor: 3x (1500L ÷ 500L = 3)
• If dilute label rate is 150 mL/100L, concentrate rate becomes 3 x 150, that is 450 g/100L of concentrate spray.

Non-Tree Crops and Vines: Directed Sprays:

• Calculate plant row volume: 10 times (height of plant in meters) times (width of plant in meters) divided by (between-row space in meters).

Dilute Spray Volumes:

• Calculate dilute spray volume: (plant row volume) times (spray volume factor).

Concentrate Spray Volumes:

• Concentrate sprays are applied at lower volumes and higher concentrations than dilute sprays.
• Concentrate spray volume: Divide dilute spray volume by the concentration factor.

Vegetables: Dilute Sprays:

• Apply using a sprayer fitted with cone nozzles operated at pressures that produce a MEDIUM to FINE spray.
• Suggested volumes per sprayed hectare vary with foliage density and plant size.

Concentrate Sprays:

• Apply at lower water volumes than dilute application.
• Concentrate spray volume should not be less than ⅓ of the equivalent dilute volume.
• Concentration should not exceed 3 times the dilute concentration.
• Apply using a sprayer fitted with cone nozzles producing a FINE spray.

Bananas:

• Apply as a dilute spray with sufficient volume to wet all leaf surfaces to the point of runoff.
• Preferably use an air-blast sprayer fitted with cone nozzles.

Ground-rig Application:

• Apply as a fine spray in a minimum of 250 liters of water per hectare.
• May use hydraulic nozzles or fan-assisted rotary atomizers.
• Avoid application in very windy conditions or rapid drying.

Aircraft Application:

• Apply in a minimum of 20 liters of water per hectare.
• May use hydraulic nozzles or rotary atomizers for droplets with a V.M.D. of around 150 microns.
• Avoid application in calm or very windy conditions or when rapid drying occurs.
• Ensure good spray coverage in a light crosswind.