Amistar WG

Manufacturer
SYNGENTA
Category
Fungicides
Registered until
N/A
Registration number
P4841
Active materials
Links

GENERAL INFORMATION
AMISTAR WG is a broad spectrum fungicide from the strobilurin group with systemic, translaminar, protectant and antisporulant properties. AMISTAR WG is best used as a protective treatment program. AMISTAR WG should not affect beneficial species including Parasitic Wasps, Hover Flies, Lacewings and Honeybees.

Grapes
Apply a maximum of 3 applications of AMISTAR WG or a related strobilurin product to the crop in 1 season.

Potatoes and field Tomatoes
Foliar applications of AMISTAR WG or related strobilurin products should not exceed one third of the total fungicide applications made to the crop in 1 season.

DIRECTIONS FOR USE
It is an offence to use this product on animals

GRAPES
Disease: Powdery Mildew, Downy Mildew, Botrytis*
Rate: 40 g/100 litresof water, and apply not less than 400 g product/ha
Critical Comments: Apply at 10 to14 day intervals from early flowering to pre-harvest. Use the shorter spray intervals during periods of severe disease pressure. *When AMISTAR WG is used in a seasonal spray program it will provide control of Botrytis additional to that of specific botryticides such as Switch®. AMISTAR WG MUST NOT be used instead of specific botryticides at strategic timings.

ONIONS
Disease: Downy Mildew, Pink Root
Rate: 250 g/ha
Critical Comments: Apply in a minimum of 400 litres of water/ha for a crop in full canopy to ensure uniform coverage. Apply as a protective spray at 7 day intervals from the 2 leaf growth stage or when conditions favour disease infection but prior to disease development. Add a surfactant at recommended label rates. Use higher spraying pressure or air assisted equipment to enhance penetration in densely foliated crops. Application to established Downy Mildew may not give reliable control.
AMISTAR WG will contribute to the control of Pink Rot (Phoma terrestris). DO NOT apply more than 4 applications of AMISTAR WG per season.

Disease: Neck rot (Botrytis allii)
Rate: 250 g/ha
Critical Comments: AMISTAR can be applied at key timings for neck rot control i.e. flag leaf and pre harvest.
Apply in sufficient water to ensure thorough and uniform coverage.Applications MUST be made with the addition of a non-ionic wetting agent at manufacturer's label rates. Use higher spraying pressure or air assisted equipment to enhance penetration in densely foliated crops. DO NOT apply more than 4 applications of AMISTAR WG per season.

PEAS
Disease: Ascochyta, Downy Mildew, Powdery Mildew
Rate: 250 g/ha
Critical Comments: Apply in a minimum of 200 litres of water/ha for a crop in full canopy to ensure uniform coverage. The first application should be made as a protective spray at 5th node to 1st pod formation. A second application 14 to 21 days later is required if disease pressure remains high. The addition of a surfactant at recommended label rates will assist crop coverage and spray distribution. Use higher spraying pressure or air assisted equipment to enhance penetration in densely foliated crops. Before applying AMISTAR WG ensure the crop is free from any stress caused by environmental or agronomic factors. Application to established Downy Mildew, Ascochyta or Powdery Mildew will not give reliable control. Note: See Withholding Period section for information on the appropriate withholding period.

POTATOES
Disease: Early Blight, Late Blight*
Rate: 250 g/ha
Critical Comments: Apply in a minimum of 500 litres of water/ha for a crop in full canopy to ensure uniform coverage.
Apply as a protective spray at 7 to 10 day intervals during periods of active growth. Intervals can be increased to 10 to14 days later in the season as haulm growth ceases. Always use the closer intervals during periods of severe disease pressure.
Use higher spraying pressure or air assisted equipment to enhance penetration in densely foliated crops.
* Under climatic conditions which create severe Late Blight disease pressure, either tank mix AMISTAR WG with 1 kg/ha mancozeb (80%) or alternately, apply 1 or 2 sprays of a systemic/protectant fungicide such as Ridomil® Gold MZ WG, then revert to the use of AMISTAR WG.

POTATOES IN-FURROW PLANTING APPLICATION
Disease: Black scurf, Silver scurf*
Rate: 5 g/100 m of row
Critical Comments: Apply at planting as a in-furrow spray in 50 to 150 litres of water/ha. Direct the spray into the furrow just before the tuber is covered with soil as a 15 to 30 cm band ensuring the tuber and immediate surrounding soil is sprayed.
DO NOT apply AMISTAR WG if conditions or seed quality favour bacterial rots as these diseases may be aggravated if seed comes into contact with additional moisture. DO NOT apply AMISTAR WG if planting in hot, sandy soils as bacterial rots may be aggravated. *- suppression only

TOMATOES (Field)
Disease: Early Blight, Late Blight, Black Mould / Anthracnose
Rate: 250 g/ha
Critical Comments: Apply in a minimum of 500 litres water/ha for a crop in full canopy to ensure uniform coverage. Apply as a protective spray at 10 to 14 day intervals. Use higher spraying pressure or air assisted equipment to enhance penetration in densely foliated crops. DO NOT apply to field tomatoes with a surfactant or crop oil concentrate.

MIXING
Half fill the spray tank with clean water and start agitation. Shake the closed container then measure the required amount of AMISTAR WG into the spray tank adding any tank mix products last. Maintain agitation until spraying is complete. DO NOT leave the spray mix in the sprayer overnight.

APPLICATION
It is important that optimum spray coverage of the crop is achieved. Increase water rates as necessary to ensure complete foliar cover at all stages of crop development. The rates recommended are for high volume spraying. For low volume concentrate spraying adjust dilution rates accordingly. Wetting agent additives are not normally required when using AMISTAR WG.

COMPATIBILITY
AMISTAR WG is compatible with most commonly used insecticides and fungicides. Each product should be added separately to the bulk of the water in the spray tank whilst filling and agitator working.

WITHHOLDING PERIODS
It is an offence for users of this product to cause residues exceeding the relevant MRL in the New Zealand (Maximum Residue Limits of Agricultural Compounds) Food Standards
Grapes ............................................................................................... 14 days
Onions ................................................................................................ 35 days
Peas (garden without pods / process without pods)............................. 14 days
Dry Seed Peas and Dry Animal Feed Peas......................................... 35 days
Pea/hay silage..................................................................................... 14 days
Potatoes ............................................................................................. 14 days
Tomatoes (field) ................................................................................. 14 days

Registered for culturesRatePreharvest Interval
Grapes0 l14
Onions250 g35
Peas250 g14
Potatoes250 g14
Tomatoes250 g14