Pyresta

1 Trade nameManufacturerFormAPVMA
PYRESTA LV HERBICIDESIPCAM PACIFIC AUSTRALIA PTY LTDEMULSIFIABLE CONCENTRATE61328
PYRESTA XTREME LV HERBICIDESIPCAM PACIFIC AUSTRALIA PTY LTDEMULSIFIABLE CONCENTRATE69952


2 PRICE:$18.7/L


3 ACTIVE INGREDIENTS:2,4-D LV ester 600g/L + Pyraflufen-ethyl 2.1g/L

4 CHEMICAL GROUP: I,G Disrupters of plant cell growth

5 RELATED HERBICIDES:

Group I Herbicides2,4-D amine 5002,4-D Amine 500g/L
2,4-D amine 6252,4-D Amine 625g/L
2,4-D amine plus Dicamba2,4-D 250gL + dicamba 100g/L
2,4-D ester 8002,4-D Ester 800g/L
2,4-D ester plus Garlon2,4-D ester 530g/L + triclopyr 200g/L
2,4-D LV ester 6002,4-D LV ester 600-680g/L
2,4-DB 4002,4-DB 400g/L
2,4-DB 5002,4-DB 500g/L
2,4-DB plus MCPA2,4-DB 200g/L + MCPA 250g/L
AccessPicloram 120g/L + triclopyr 240g/L
Dicamba 200Dicamba 200
Dicamba 25 plus MCPA 150Dicamba 25g/L + MCPA 150g/L
Dicamba 500Dicamba 500g/L
Dicamba 700Dicamba 700g/kg (or 750 g/kg)
Dicamba plus MCPADicamba 80g/L + MCPA 340g/L
FallowBoss2,4-Dam 300g/L+Aminopyralid 7.5g/L+picloram 75g/L
Garlon 600Triclopyr 600g/L
Grazon ExtraAminopyralid 8g/L+picloram 100g/L+triclopyr 300g/L
HotshotAminopyralid salt 10g/L + fluroxypyr-meptyl 140g/L
LontrelClopyralid 300g/L
Lontrel 750Clopyralid 750g/kg
MCPA amineMCPA 500-750g/L
MCPA LVEMCPA LV ester 500g/L (or570)
MCPB 400MCPB 400g/L
PicloramPicloram 240g/L
Picloram plus TriclopyrPicloram 100g/L + triclopyr 300g/L
Starane 200Fluroxypyr 200-400g/L
Tordon 242MCPA 420g/L + picloram 26g/L
Tordon 75-D2,4-D 300g/L + picloram 75g/L
Tordon DSPicloram amine 100g/L + triclopyr amine 200g/L
Tordon RegrowthMasterAminopyralid 25g/L+picloram100g/L+triclopyr 200g/L
Tri-kombi24D Ester 800g/L + Dicamba 40g/L + Mecoprop 336g/L


Group G HerbicidesBlazerAcifluorfen 224g/L
Carfentrazone 240Carfentrazone-ethyl 240g/L
Carfentrazone 400Carfentrazone-ethyl 400g/kg
FlumioxazinFlumioxazin 500g/kg
OxyfluorfenOxyfluorfen 240g/L (or 500g/L)
Saflufenacil 700Saflufenacil 700g/kg


6 GENERAL DESCRIPTION:

Pyresta is a mixture of two active ingredients. The 2,4-D is a selective, translocated, foliar absorbed, post emergence herbicide that controls a large range of broadleaf weeds.

The pyraflufen component is a rapidly absorbed, fast acting, contact, non residual, post emergent herbicide for the control of broad leaved weeds and has action on some grasses.

In Australia it is usually mixed with glyphosate as a pre planting herbicide.

7 APPLICATION METHODS AND TIPS:

Best results on young actively growing plants in moist soil in fine weather.

Some species (e.g. cotton, vines, tomatoes, lettuce) are sensitive to very low rates and drift may cause damage.

Apply in 30-100 L/ha water for boom spraying. Use higher water volumes on small weeds and in dense infestations.

Ensure good coverage.

Regulations require the use of coarse spray droplets when applying 2,4-D. Keep droplet density greater than 30/cm2.

8 WEATHER:

Rainfast in 3-4 hours. The label quotes 6 hours because it is normally applied with glyphosate.

Frost effects: Frost before application may retard weed growth thus reducing translocation. For best results, 2-3 frost free days are required after application.

Wind: Regulations require application when wind speeds are between 3 and 15 km/hour to reduce the risk of damage caused by drift. Avoid spraying when wind is blowing towards sensitive crops.

Inversions: Don't apply during inversion conditions as damaging levels of herbicide drift may move a kilometre or more.

Temperature:

Delta T and Relative Humidity: Avoid application when Delta T is greater than

9 ADJUVANTS:

Adjuvants are not normally required. A non ionic wetting agent may be useful on hard to wet weeds.

10 WATER QUALITY:

Hard water: Very hard water can cause the product to separate from the water.

Salty water: Can cause the product to separate from the water.

Colloids: Little effect.

pH:

Tank life:

11 COMPATIBILITY:

Trace elements: generally not compatible.

Ester formulations generally have good compatibility providing the emulsifier is not overloaded and the product separates from the water (do a jar test).

See HerbiGuide Compatibilities button.

12 EQUIPMENT:

Boom sprays:

Carrier volume: 60-150 L/ha water recommended on label. Use finer nozzles or faster speeds if using carrier volumes down to 30 L/ha and ensure that droplet density is more than 30 droplets/cm2, especially if small weeds are present.

Regulations require the use of coarse droplets (ASAE S572) to reduce the impacts of drift.

Nozzles: 80 or 110 degree flat fan nozzles. Larger orifice nozzles (e.g. 02 or 03) or air induction nozzles are used to reduce drift but water volumes need to be about 80 L/ha or more for good coverage of small weeds.

Pressure: 150-400 kPa is a typical set up for boom sprays.

13 SPRAYER DECONTAMINATION:

Clean Up:

Clean soon after spraying to reduce the risk of forming dried deposits that may be difficult to remove.

Remove filters and clean separately. Rinse with soapy water (e.g. 500 mL or g of Drive, Dynamo, Omo or Surf per 100 L water) or water plus 0.25% wetting agent and run through boom. Rinse with water.

Decontamination:

Remove filters and clean then soak in 500 mL household ammonia in 10 L water for 30 minutes.

Rinse sprayer with soapy water (e.g. 500 mL or g of Drive, Dynamo, Omo or Surf per 100 L water) or water plus 0.25% wetting agent and run through boom. Fill with 1% solution of ammonia and leave for several hours. Triple rinse with water. Or use a commercial spray tank and equipment cleaner.

Rinse nozzles and filters in water and replace.

Check and clean filters and nozzles again if necessary.

It may not be possible to decontaminate old spray tanks and hoses.

Don't use chlorine based cleaners.

14 HERBICIDE RESISTANCE:

Tolerant plants are expected to occur and may dominate the weed population after repeated applications.

Some plants have developed some resistance to 2,4-D.

In 2008 there was no known resistance to Pyraflufen.

15 REPLANTING INTERVALS:

Plant back periods in days for various rates of application
Crop<500 mL/ha500-900 mL/ha
Balansa clover77
Barley11
Canola1421
Chickpea7 (14 Qld)14
Clover; Subterranean77
Clover; White77
Cotton1014
Faba Bean77
Field Pea714
Lentils77
Linseed77
Lucerne77
Lupin7 (28 WA)a14 (28 WA)a
Medic77
Narbon Bean77
Navy Bean1010
Oat33
Perennial Ryegrass77
Persian Clover77
Phalaris77
Rice77
Safflower7 (14 Qld)14
Sorghum3 (1 Qld)7 (1 Qld)
Soybean1414
Sunflower7 (1 Qld)10 (1 Qld)
Triticale13
Vetch77
Wheat13

These plant backs are generally quite conservative and problems are rarely seen with shorter periods because most of the free 2,4-D ester evaporates within a day or two of spraying. If applied to dry soil then the plant back period refers to the time required after the soil is wet for the broad leaved crops.

a Lupin replanting interval from label. Seems excessive.

16 WITHHOLDING PERIODS:

CropTypeTime
AllHarvestNot required.
AllGrazing7 days

17 RE-ENTRY PERIOD:

Wear protective clothing if working in the crop before the spray has dried.

18 PROTECTIVE CLOTHING:

Face shield or goggles, cotton overalls, gloves, boots.

19 SOIL:

No particular effects.

20-35 Pyresta Mode, Toxicity, Fate, Properties & Regulations