Pyramin DF

Manufacturer
BASF
Category
Herbicides
Registered until
Registration expired
Registration number
16768
Active materials
Links

A water dispersible granule containing 65% w/w chloridazon.

DIRECTIONS FOR USE

Restrictions/Warnings

A maximum total dose of 2.6 kg chloridazon/hectare may only be applied every third year in the same field.
For optimum results the soil must be sufficiently moist at the time of application for the product to form an active herbicidal layer in the soil.
Adequate weed control depends upon sufficient rain falling before emergence to at least maintain this level of moisture.
Pyramin DF is suitable for use on all soil textural classes except ‘coarse sand’, ‘sand’ and ‘fine sand’ as defined in the Soil Texture (85) System and also excepting soils of high organic content, fen peat and moss soils. The soil type should be accurately diagnosed since the recommended rates of use of Pyramin DF applied pre-drilling and pre-emergence are dependent on soil type.
 
Heavy rain falling shortly after spraying may check the growth of the crop particularly when water has stood in surface depressions.
Under conditions of low pH, a reduction in herbicidal effectiveness may be noticed.
Wash equipment thoroughly with water and detergent, paying particular attention to the inside of the top of the spray tank which should be scrubbed immediately after use. Spray out, fill with clean water and leave overnight. Spray out again before storing or using for another product. Traces of the product could cause harm to susceptible crops sprayed later.
Avoid spray drift on to neighbouring crops, particularly lettuce.
 
Weed Control
For optimum results the soil must be sufficiently moist at the time of application for the product to form an active herbicidal layer in the soil.
Weed:Black-bindweed
Rate:4 kg product/ha
Critical Comments:S
 
Weed:Charlock
Rate:4 kg product/ha
Critical Comments:S
 
Weed:Chickweed, Common
Rate:4 kg product/ha
Critical Comments:S
 
Weed:Cleavers
Rate:4 kg product/ha
Critical Comments:MR
 
Weed:Dead-nettle, Red
Rate:4 kg product/ha
Critical Comments:S
 
Weed:Fat-hen
Rate:4 kg product/ha
Critical Comments:S
 
Weed:Fumitory, Common
Rate:4 kg product/ha
Critical Comments:MS
 
Weed:Groundsel
Rate:4 kg product/ha
Critical Comments:MS
 
Weed:Hemp-nettle, Common
Rate:4 kg product/ha
Critical Comments:S
 
Weed:Knotgrass
Rate:4 kg product/ha
Critical Comments:S
 
Weed:Marigold, Corn
Rate:4 kg product/ha
Critical Comments:S
 
Weed:Mayweed spp.
Rate:4 kg product/ha
Critical Comments:S
 
Weed:Meadow-grass, Annual
Rate:4 kg product/ha
Critical Comments:S
 
Weed:Nettle, Small
Rate:4 kg product/ha
Critical Comments:S
 
Weed:Nightshade, Black
Rate:4 kg product/ha
Critical Comments:S
 
Weed:Orache, Common
Rate:4 kg product/ha
Critical Comments:S
 
Weed:Pansy, Field
Rate:4 kg product/ha
Critical Comments:MR
 
Weed:Penny-cress, Field
Rate:4 kg product/ha
Critical Comments:S
 
Weed:Pimpernel, Scarlet
Rate:4 kg product/ha
Critical Comments:MS
 
Weed:Poppy, Common
Rate:4 kg product/ha
Critical Comments:S
 
Weed:Radish, Wild
Rate:4 kg product/ha
Critical Comments:S
 
Weed:Redshank
Rate:4 kg product/ha
Critical Comments:S
 
Weed:Shepherd‘s-purse
Rate:4 kg product/ha
Critical Comments:S
 
Weed:Sow-thistle, Prickly
Rate:4 kg product/ha
Critical Comments:MS
 
Weed:Sow-thistle, Smooth
Rate:4 kg product/ha
Critical Comments:MR
 
Weed:Speedwell, Common Field
Rate:4 kg product/ha
Critical Comments:S
 
Weed:Speedwell, Ivy-leaved
Rate:4 kg product/ha
Critical Comments:S
 
Weed:Spurges
Rate:4 kg product/ha
Critical Comments:MR
 
Weed:Spurrey, Corn
Rate:4 kg product/ha
Critical Comments:S
 
Weed:Vetches
Rate:4 kg product/ha
Critical Comments:MR
 
Weed:Wild-oat
Rate:4 kg product/ha
Critical Comments:R
 
(S – Susceptible MS – Moderately Susceptible MR – Moderately Resistant R – Resistant).
 
Crops and Application
Crops
Pyramin DF may be applied pre-drilling and or pre-emergence to sugar beet, fodder beet and mangels.
Application Methods
Pre drilling and Incorporated Application
Application of Pyramin DF overall followed immediately by soil incorporation of the spray is particularly recommended to ensure good weed control in the following situations: • where dry conditions prevail at the time of drilling • where the crop is drilled late (after mid April) In these situations dry soil conditions or high temperatures may result in rapid weed establishment before the chemical reaches the root zone of the germinating weeds. Incorporation of Pyramin DF will enhance the herbicidal action where surface sprays may not give satisfactory weed control.
Time of Application
Apply Pyramin DF to the final seedbed before drilling. The spray must be applied overall and incorporated into the soil as soon as possible.
Rate of Application
When applying Pyramin DF pre-drilling, use a minimum water volume of 100 litres of water per hectare.
 
Table 1: Rates of Application for both Pre-drilling/Incorporated and Pre emergence overall applications.
When variability in soil type occurs in one field, use the rate of Pyramin DF recommended for the lightest soil type present. This may result in poorer weed control on the areas of heavier soil type.
 Textural Group:Sands 
Textural Classa:Loamy coarse sand
Rate of Pyramin DF - kg/hectare:1.7
 
Textural Group:Very light soils
Textural Classa:Loamy sand; Loamy fine sand
Rate of Pyramin DF - kg/hectare:1.7
 
Textural Group:Very light soils
Textural Classa:Coarse sandy loam
Rate of Pyramin DF - kg/hectare:2.8–3.1
 
Textural Group:Light soils 
Textural Classa:Sandy loam Fine sandy loam
Rate of Pyramin DF - kg/hectare:2.8–3.1
 
Textural Group:Light soils
Textural Classa:Sandy silt loam Silt loam (85)
Rate of Pyramin DF - kg/hectare:4
 
Textural Group:Medium soils 
Textural Classa: Sandy clay loam; Clay loam; Silty clay loam
Rate of Pyramin DF - kg/hectare:4
 
Textural Group:Heavy soils 
Textural Classa:Sandy clay Clay Silty clay
Rate of Pyramin DF - kg/hectare:Not recommended
 
Method of Application
Uniform incorporation into the top 25 mm layer of the final seedbed is essential using two harrowings at right angles to each other. Spring tine or zigzag harrows should be used with not more than 100 mm stagger set to penetrate to a maximum depth of 75 to 100 mm into the soil.
Choice of type and weight of harrow are dependent on soil texture. Harrows with broken, uneven or missing tines should not be used. Take particular care with spring tine harrows which tend to penetrate too deeply.
Incorporation deeper than 25 mm causes dilution of the herbicidal layer and may, therefore, result in inadequate weed control.
Beet should be drilled as quickly as possible after incorporation to achieve the best results.
Notes
Dilution of the chemical may occur if high amounts of rainfall occur just after incorporation. In these circumstances, efficiency of the treatment may be reduced.
 
Pre emergence Application
Time of Application
Apply Pyramin DF at the time of drilling or immediately afterwards on a seedbed which is fine, moist, firm and free from clods. Should spraying be delayed for any reason, application must be made as soon as possible whilst the soil is still moist and before any emergence of the beet. To obtain adequate weed control significant rainfall between application and crop emergence is essential to maintain soil moisture. If dry soil conditions or high temperatures are expected the incorporated pre¬ drilling application of Pyramin DF is recommended.
Rate of Application
See Table 1 above for overall rates of application and below for band spraying. When applying Pyramin DF pre-emergence, use a minimum water volume of 100 litres of water per hectare.
Method of Application
Pyramin DF can be applied pre emergence either as an overall treatment or as a band spray.
Band Spraying
When band spraying, set up the band sprayer according to the manufacturer‘s instructions. Use the nozzle tips and pressures recommended and at the correct speed on a 180 mm band, the volume of water applied will be 240 litres per sprayed hectare.
For band application add the dose rate per hectare recommended for overall application (see Table 1) to 240 litres of water.
The area of crop treated based on a 180 mm band width varies with the crop row width as follows.
 
Table 2: Crop area treated at 240 litres per sprayed hectare
Row Width mm:460 
Area Treated hectares:2.6
 
Row Width mm:480
Area Treated hectares:2.7
 
Row Width mm:500
Area Treated hectares:2.8
 
Row Width mm: 520   
Area Treated hectares:2.9
 
Row Width mm:540
Area Treated hectares:3.0
 
Row Width mm:560
Area Treated hectares:3.1
 
Row Width mm:580 
Area Treated hectares:3.2
 
Row Width mm:600
Area Treated hectares:3.3
 
Warning
Excessive penetration of the drill coulter may be accompanied by a narrowing of the sprayed band with a consequent increase in the rate of application.
Overdosing by overlapping should be avoided, though its effects may be minimised by spraying across the direction of drilling.
Inter-Row Weed Control Following Band Spraying
Continued weed control from Pyramin DF depends on leaving the treated soil undisturbed. Inter row hoeing, chopping out and singling operations should therefore be arranged to leave as much as possible of the Pyramin DF treated land intact.
 
Following crops
The effects of Pyramin DF persist in the soil for several weeks. Fields which have been sprayed but where the crop has failed may be re drilled with sugar beet, fodder beet, mangels or maize after cultivation. They should not be re drilled with any other crops.
Any spring sown crop may follow sugar beet, fodder beet or mangels harvested in the usual way. Winter cereals may be sown in the autumn after ploughing.
 
Mixing and Spraying
Calibration of Spraying Machinery
The spraying equipment should be clean and free from traces of other chemicals.
Ensure the correct nozzles are fitted: (a) For the correct water volume for overall sprayers. (b) For the correct drilling speed for band sprayers.
Check the delivery from each nozzle for uniformity and replace worn tips to ensure uniform output.
Calibrate the sprayer and use it according to the manufacturer‘s instructions.
Cross check the band sprayer calibration in the field as follows:
(a) Select a nozzle on the sprayer giving the nearest output to the average and with the drill in operation collect the spray from this nozzle for a distance of 60 metres. This should be exactly 225 ml. As the spray is collected over a given distance, the quantity will be the same irrespective of the make of nozzles used and this is a volume rate of 240 litres per sprayed hectare on a 180 mm band.
(b) Repeat as necessary, adjusting the tractor speed until this output is achieved over this distance.
(c) Make sure that the observations are made when the band sprayer is working smoothly and not immediately on starting.
Important
(d) The final setting of the width of the spray band to 180 mm must be made in the field when the drill is in operation and not on a hard surface or headland. It is essential that the band width is exactly 180 mm, otherwise the rate of application will be incorrect. A narrower band may cause crop damage and a wider band will result in poorer weed control. The setting should be checked in each field treated and also at the beginning of each day‘s work because of the possible effect of weather on soil conditions.
 
Mixing
Never prepare more spray solution than is required.
Three quarters fill the tank with clean water and start the agitation. Remove the top filter. SLOWLY add the required amount of Pyramin DF. Do not empty the contents into the tank as one large mass. Add the remainder of the water, replace the filter, and continue agitation until spraying is complete.
When tank mixes are to be used, take due note of any instructions given as to the order of mixing. Each product should be added separately to the spray tank and fully dispersed before the addition of any further product(s). Rinse empty containers thoroughly, using an integrated pressure rinsing device or by manually rinsing three times. Add washings to tank at time of filling and dispose of container safely.
 Water Volume
Use a minimum water volume of 100 litres per hectare, whether Pyramin DF is applied predrilling or pre-emergence. Water volume for tank mixtures applied pre-emergence should not be less than 220 litres/ hectare. Volumes up to 450 litres/hectare should be used when soil conditions are drier.
Spray Quality
Apply as a MEDIUM spray, as defined by BCPC.
Tank Cleaning
Wash sprayer thoroughly immediately after use, using clean water and following the sprayer cleaning guidance provided by the equipment manufacturer.
 
Compatibility
For details of compatibilities contact your distributor, local BASF representative or the BASF Technical Services Hotline: 0044 845 602 2553.

 

Registered for culturesRate
Beets4 kg
Sugar beets4 kg
Mangels4 kg