AmistarPlant Protection Product ComparisonPlant Protection Product ComparisonReport inaccuraciesReport inaccuracies

GENERAL INFORMATION
AMISTAR is a broad spectrum fungicide from the strobilurin, or QoI group with systemic, translaminar, protectant and anti sporulant properties. AMISTAR is best used as a preventative treatment during mid-crop development. AMISTAR also controls the late season disease complex in cereals when applied from flag leaf emergence. AMISTAR enhances green leaf area retention and will provide up to six weeks disease control in cereals. Applications made to cereal crops over the flag leaf to head emergence growth stages will provide significant green leaf area retention that can contribute to yield increases. AMISTAR should not affect beneficial species including Parasitic Wasps, Hover Flies, Lacewings and Honeybees.

RESISTANCE MANAGEMENT
AMISTAR Fungicide contains a member of the strobilurin, or Quinone outside Inhibitors (QoI), group of fungicides. AMISTAR is a Group 11 fungicide. Resistance to this fungicide could develop from repeated use. To minimise this risk use strictly in accordance with label instructions and resistance management strategies.  

Cereals
Apply AMISTAR in mixture with other approved, non-cross resistant, fungicides to control cereal pathogens. Refer to manufacturers' recommendations for rates of partner fungicides. Apply AMISTAR preventatively or as early as possible in the disease cycle. DO NOT rely only on the curative potential of AMISTAR. Split/reduced rate programs, using repeated applications, which provide continuous selection pressure, MUST NOT be used.

Grapes
Apply a maximum of 3 applications of AMISTAR or a related strobilurin product to the crop in 1 season.
Potatoes and field Tomatoes
Foliar applications of AMISTAR or related strobilurin products should not exceed one third of the total fungicide applications made to the crop in 1 season.

Potatoes and field Tomatoes
Foliar applications of AMISTAR 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

BARLEY
Disease: Didymella Leaf Scorch, Leaf Rust, Net Blotch (spot and net form), Ovularia Leaf Spot, Scald, Spot Blotch
Rate: 750 mL/ha
Critical Comments: Apply as a preventative spray. If disease is present, or conditions prior to application have been favourable for disease infection the addition of an approved triazole fungicide is recommended. Re-infection may require further treatment 4 to 6 weeks later. Where Scald infection pressure is high, it is recommended to apply AMISTAR in a tank mix with a fungicide from a different chemical group that is approved for use on this disease.

Disease: Late season Head Disease complex (Alternaria, Cladosporium, Microdochium nivale, Stemphylium)
Rate: 750 mL/ha
Critical Comments: Apply as a preventative spray after ear emergence; GS 57-69.

GRAPES
Disease: Powdery Mildew,Downy Mildew,Botrytis*
Rate: 80 mL/100 litres of water, and apply not less than 800 mL 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 is used in a seasonal spray program it will provide control of Botrytis additional to that of specific botryticides such as Switch®. AMISTAR MUST NOT be used instead of specific botryticides at strategic timings.

ONIONS
Disease: Downy Mildew, Pink Root
Rate: 500 mL/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 will contribute to the control of Pink Root (Phoma terrestris). DO NOT apply more than 4 applications of AMISTAR per season.

Disease: Neck rot (Botrytis allii)
Rate: 500 mL/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 per season.

PEAS (NOT for use on Peas to be harvested in pods and consumed whole, eg Snow Peas and Snap Peas)
Disease: Ascochyta, Downy Mildew, Powdery Mildew
Rate: 500 mL/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 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.

RYEGRASS SEED CROPS
Disease: Crown Rust (Leaf Rust) Stem Rust
Rate: 750 mL/ha
Critical Comments: Apply as a preventative spray. If disease is present, or conditions prior to application have been favourable for disease infection the addition of an approved triazole fungicide is recommended. Re-infection may require further treatment. The treatment of Ryegrass seed cultivars has not shown to have had any adverse effects on the endophyte levels in the harvested seed.

POTATOES IN-FURROW PLANTING APPLICATION
Disease: Black scurf, Silver scurfΔ
Rate: 10 mL/100 m of row
Critical Comments: Apply at planting as an in-furrow spray in 50 to 150 L 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 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 if planting in hot, sandy soils as bacterial rots may be aggravated. Δ - suppression only

POTATOES
Disease: Early Blight,Late Blight*
Rate: 500 mL/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 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.

SWEETCORN, MAIZE
Disease: Rust (Puccinia sorghi), Northern Leaf Blight (Setosphaeria turcica)
Rate: 1 L/ha
Critical Comments: Apply as a preventative spray especially before but no later than tasselling when disease infection is most likely to occur. A second application may be required 14 days later if disease pressure continues. Do not apply more than 2 applications per season.

TOMATOES (field)
Disease: Early Blight, Late Blight, Black Mould / Anthracnose
Rate: 500 mL/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.

WHEAT
Disease: Leaf Rust, Powdery Mildew, Speckled Leaf Blotch, Stripe Rust
Rate: 750 mL/ha
Critical Comments: Apply as a preventative spray. If disease is present, or conditions prior to application have been favourable for disease infection the addition of an approved triazole fungicide is recommended. Re-infection may require further treatment 4 to 6 weeks later. Where Powdery Mildew infection pressure is high, it is recommended to apply AMISTAR in a tank mix with a fungicide from a different chemical group that is approved for use on this disease.

Disease: Didymella Leaf Scorch
Rate: 750 mL/ha
Critical Comments: Apply as a preventative spray from flag leaf emergence; GS 39.

Disease: Glume Blotch
Rate: 750 mL/ha
Critical Comments: For protection of the flag leaf apply as a preventive spray from flag leaf emergence; GS 39-55. For protection of the seed head apply after ear emergence; GS 57-69.

Disease: Late season Head Disease complex (Alternaria, Cladosporium, Microdochium nivale, Stemphylium)
Rate: 750 mL/ha
Critical Comments: Apply as a preventative spray after ear emergence; GS 57-69.

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

APPLICATION
Use at least 200 litres/ha of water by ground. Use higher water volumes in dense or advanced crops. Use not less than 50 litres/ha for aerial application. As there are many factors involved in aerial application, for optimum results, contact your local Syngenta Crop Protection representative for detailed information.
Uniform coverage is essential for best results. Wetting agent additives are not normally required when using AMISTAR.

COMPATIBILITY
AMISTAR is compatible with most commonly used insecticides and fungicides. Before using any tank mixture, consult and comply with the recommendations of the partner product. 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.
Wheat, Barley, Ryegrass seed crops - grain crops............................ 35 days
Wheat, Barley, Ryegrass seed crops - green feed / silage ............... 28 days
Maize ................................................................................................ 56 days
Sweetcorn ......................................................................................... 14 days
DO NOT use on Maize or Sweetcorn intended for green feed or silage
Grapes ............................................................................................... 14 days
Onions ................................................................................................ 35 days
Peas (garden without pods / process without pods)............................. 14 days