Signum

Manufacturer
BASF
Category
Fungicides
Registered until
N/A
Registration number
03799
Active materials
Links

Signum is a fungicide with protectant and systemic activity for use against certain diseases in broccoli, Brussels sprout, cabbage, calabrese, cauliflower, strawberry (outdoor and protected), carrot, lettuce (outdoor and protected), field beans, combining peas, vining peas and blackcurrants.

A water dispersible granule containing 26.7% w/w boscalid and 6.7% w/w pyraclostrobin.

DIRECTIONS FOR USE

BLACKCURANT
Diseases: 
American gooseberry mildew Sphaerotheca mors-uvae, Blackcurrant leaf spot Drapenopeziza ribis, Grey mould Botrytis cinerea.
Rate: 
1.5kg/ha
Critical comments: 
Maximum total dose: 3.0 kg/ha/year. Latest time of application: 3 - 21 days before harvest.

BRUSSELS SPROT
Diseases: 
White blister Albugo candida, Ringspot Mycosphaerella brassicola
Rate: 1kg/ha

CABBAGE
Diseases: White blister Albugo candida, Dark leaf spot Alternaria spp., Ringspot Mycosphaerella brassicola
Rate: 1kg/ha

CAULIFLOWER, BROCCOLI, CALABRESE
Diseases: 
Dark leaf spot Alternaria spp., Ringspot Mycosphaerella brassicola
Rate: 1kg/ha

Critical comments: Maximum total dose: 3.0 kg/ha/crop. Latest time of application: 14 days before harvest.

TRAWBERRY (OUTDOOR and PROTECTED)
Diseases: Grey mould Botrytis cinerea
Rate: 1.8 kg/ha
Critical comments: Maximum total dose: 3.6 kg/ha/year.  Latest time of application: 3 days before harvest.

CARROTS
Diseases: Powdery mildew Erisiphe heraclei Sphaerotheca macularis, Alternaria leaf spot Alternaria dauc, Sclerotinia rot Sclerotinia sclerotiorum.
Rate: 1.0 kg/ha
Critical comments: Maximum total dose: 2.0 kg/ha/crop. Latest time of application: 14 days before harvest.

LETTUCE (PROTECTED and OUTDOOR)
Diseases: Grey mould Botrytis cinerea, Bottom rot Rhizoctonia solani, Watery soft rot Sclerotinia spp.
Rate: 1.5 kg/ha
Critical comments: Maximum total dose: 3.0 kg/ha/crop. Latest time of application: 14 days before harvest.

FIELD BEANS
Diseases: Bean rust Uromyces fabae, Chocolate spot Botrytis spp.,  
Rate: 1.0 kg/ha

PEAS
Diseases: Leaf and pod spot Ascochyta pisi
Rate: 1.0 kg/ha

Critical comments: Maximum total dose: 2.0 kg/ha/crop. Latest time of application: 21 days before harvest.

Restrictions/Warnings
Processed Crops – Consult processors before use on crops destined for processing. Tests have indicated that no taints were detected in blackcurrant juice; quick frozen or canned vining peas and canned combining peas.
Applications to lettuce must only be made between 1 April and 31 October.
DO NOT APPLY MORE THAN 6 kg/ha of Signum to the same area of land per annum.
 
Resistance
In order to minimise risk of resistance:
Signum contains the QoI fungicide, pyraclostrobin and the SDHI (carboxamide) fungicide, boscalid. Signum should be used in accordance with FRAC resistance management advice for QoI and carboxamide mixtures.
Avoid using consecutive applications of Signum. Apply Signum in alternation with fungicides from a different cross-resistance group with satisfactory efficacy against the targeted diseases.
In line with FRAC guidance, the number of Signum applications should be no more than half of the total number of fungicide applications per season. Use no more than a maximum of three applications of Signum per crop in brassicas; no more than three applications per year in blackcurrants and no more than two applications per crop in other crops.
 
Crops
Brassicas (broccoli, Brussels sprout, cabbage, calabrese, cauliflower)
Time of Application
Apply Signum as a protectant spray or at the first sign of disease. Repeat sprays at 3–4 week intervals depending on disease pressure. Three applications can be made but a minimum of 14 days must elapse between the last spray and harvest.
Rate of Application
Apply 1 kg of Signum in a minimum of 200 litres of water per hectare. In dense crops, increase the water volume up to a maximum of 1000 litres of water per hectare to achieve adequate penetration and good coverage of the crop.
 
Carrots
Time of Application
Apply Signum as a protectant spray or at the first sign of disease. Repeat sprays at 7–14 day intervals depending on disease pressure. Two applications can be made but a minimum of 14 days must elapse between the last spray and harvest.
Rate of Application:
0.75 –1.0 kg/ha
For control of powdery mildew and moderate control of alternaria, apply 0.75 kg of Signum in a water volume of 200 – 900 litres of water per hectare, ensuring good coverage of the foliage.
For moderate control of Sclerotinia rot, increase dose rate to 1 kg/ha of Signum in a water volume of 200-900 litres of water per hectare, ensuring good coverage of the foliage.
 
Lettuce
Time of Application
Apply Signum as a protectant spray from 1–2 weeks after planting. Apply sprays at 10
–14 day intervals depending on disease pressure. Two applications can be made but a minimum of 14 days must elapse between the last spray and harvest.
Rate of Application
Apply 1.5 kg of Signum in a water volume of 200 – 900 litres of water per hectare, ensuring good coverage of the foliage.

Field Beans
Time of Application
Apply Signum as a protectant spray or at the first sign of disease. For optimum control of rust and moderate control of chocolate spot, apply sprays from early flower and repeat at a 3–4 week interval, depending on disease pressure. Two applications can be made but a minimum of 21days must elapse between the last spray and harvest.
Rate of Application
Apply 1.0 kg of Signum in a minimum volume of 200–300 litres of water per hectare, ensuring good coverage of the foliage.

Combining peas
Time of Application
Apply Signum as a protectant spray or at the first sign of disease. For moderate control of leaf and pod spot (Ascochyta pisi), apply sprays from early flower and repeat at a 2 - 3 week interval, depending on disease pressure. Two applications can be made but a minimum of 21 days must elapse between the last spray and harvest.
Rate of Application
Apply 1.0 kg of Signum in a minimum volume of 200 - 400 litres of water per hectare, ensuring good coverage of the foliage.
 
Vining peas
Time of Application
For moderate control of leaf and pod spot (Ascochyta pisi), apply Signum as a protectant spray or at the first sign of disease. One application can be made and a minimum of 14 days must elapse between application and harvest. To maintain disease control a subsequent treatment with another product may be required 2 – 3 weeks later depending on disease pressure.
Rate of Application
Apply 1.0 kg of Signum in a minimum volume of 200 – 400 litres of water per hectare, ensuring good coverage of the foliage.
 
Mixing and Spraying
Apply as a FINE or MEDIUM spray as defined by BCPC.
Half fill the spray tank with clean water and start agitation.
Slowly add in the required amount of product.
Rinse empty containers and add rinsings to the spray tank.
Add the remainder of the water and continue agitation until spraying is complete.
 
Registered for culturesRatePreharvest Interval
Broccoli1 l14
Brussels sprouts1 l14
Cabbage1 l14
Calabrese1 l14
Cauliflower1 l14
Strawberries1.8 l3
Carrots1 l14
Lettuce1.5 l14
Beans1 l21
Peas1 l21
Black currant1.5 l3